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مجلة زراعة الرافدين العراقية

ISSN: 1815316X
الجامعة: جامعة الموصل
الكلية: الزراعة والغابات
اللغة: Arabic and English

This journal is Open Access

حول المجلة

صدرت مجلة زراعة الرافدين لأول مرة عام 1966 واستمرت لغاية عام 1982، وتوقفت بعد ذلك لمدة ثلاث سنوات بسبب القرار الوزاري بتوزيع المجلات العلمية على الجامعات العراقية وحسب الاختصاصات حيث كانت حصة العلوم الزراعية لجامعة صلاح الدين التي أصدرت المجلة العراقية للعلوم الزراعية (زانكو)، وكانت المجلة الوحيدة في العلوم الزراعية في وزارة التعليم العالي والبحث العلمي ، ثم صدرت مجلة زراعة الرافدين مرة أخرى وذلك في عام 1986 واستمرت إلى عام 2000 إذ تم اعتماد مجلة زراعة الرافدين مجلة قطرية وبهذا تم تغير اسمها إلى المجلة العراقية للعلوم الزراعية . وحصلت على الرقم الدولي ISSN 1609-4077 واستمرت بالصدور إلى المجلة إلى عام 2004 إذ تم إعادة اسم المجلة إلى مجلة زراعة الرافدين واعتبرت مجلة قطرية – دورية-علمية – محكمة وحصلت على الرقم الدولي الجديد ISSN 1815-316X وصدر المجلد 33 العدد 1 وهو تسلسل مجلة زراعة الرافدين إذ أن المجلة أصدرت 32 مجلد قبل تحويلها إلى المجلة العراقية للعلوم الزراعية. واستمرت المجلة في الصدور إلى الوقت الحاضر 2012 المجلد (40) .

كانت المجلة عند صدورها عام 1966 بعدد واحد سنوياً، وحالياً تصدر بأربعة أعداد دورية لكل سنة. ولابد من الإشارة إلى أن المجلة في بداية إصدارها عام 1966 كان يضم العدد خمسة بحوث باللغة الانكليزية، وتزايدت في الوقت الحاضر لتضم 30 بحثاً باللغتين العربية والانكليزية .

حصلت المجلة خلال مدة عملها على تقييمات وزارية عالية فقد حصلت هيئة التحرير في عام 1996 على كتاب شكر وتقدير من السيد الوزير لتميز المجلة ، كما اعتبرت المجلة متميزة في عام 2009 أيضا إذ حصلت على درع الوزارة وشهادة تقديرية .وقد حصلت المجلة في سنة 2012 على الاعتمادية الدولية وبالتالي اصبحت في متناول جميع دول العالم .

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معلومات الاتصال

E-mail:agrimeso@yahoo.com

جدول المحتويات السنة: 2012 المجلد: 40 العدد: عدد خاص بالمؤتمرالدولي الاول لقسم المحاصيل

Article
RESPONSE OF SOME VARIETIES OF SUNFLOWER CROP ( Helianthus annuus L.) TO NITROGEN FERTILIZER UNDER TWO MATURITY DATES
اسـتجابة بعض الأصناف من زهـرة الشمس(Helianthus annuus L.) للتسميد النتروجيني وعند موعدين من النضج

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الخلاصة

The experiment was conducted out at Al-AShalalat region (15 km ) north of Mosul during spring and summer seasons in 2010, in clay soil . Planting dates were the on 1April and 6Jully for both spring and summer seasons respectively. The experiment was carried out using RCBD within split plot with three replications. The aim of this study was to study the effect of three levels of nitrogen fertilizer (60, 80 and 100kg N/ha) and two maturity dates of head (Physiological and complete maturity) on the growth and yield of three sunflower varieties (Mangarin , Azur and Louse).The results showed that Mangarin variety was superior in 1000 seed wt and specific wt. of seeds in spring season, whereas no. of seeds/head and seed moisture percentage significantly increased in summer season. Azur variety had a high value in seed yield and oil percentage in summer season. Sunflower seeds reached physiological maturity with 80 kg N/ha and complete maturity with 100 kg N/ha. The highest seed yield and oil percentage were obtained by complete maturity treatment when sunflower was sown in spring season. The interaction between : Azur variety 100 Kg N/ha complete maturity gave the highest rate in seed yield for both seasons.

الكلمات الدلالية


Article
SADDLE PLANTING SYSTEM, ANEW WHEAT SOWING METHOD IN SOUTHEASTERN ANTOLIA ENVIRONMENT CONDITION

المؤلفون: Enver KENDAL --- Sertaç TEKDAL1
الصفحات: 1-10
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الخلاصة

Especially in aqueous conditions, where the ground water level is high or when grain crops alternation with cotton plant, saddle planting system is useful because this system reduce costs in Southeastern Anatolia Region near Syria and Iraq. This planting system is going common in farm condition in our region. Total of 8 durum wheat varieties were compared by using traditional planting and saddle planting methods in Diyarbakir ecological conditions in 2010-2011 production season. Acording to the combined analysis, significant differences were determined at the level of 1% and 5%, in terms of sowing methods, genotype and genotype x planting methods interactions in terms of grain yield, test weight and thousand of grain weight. The combined analysis on the data of different planting method; genotype, planting method and genotype x planting method interactions were significant at the level of 1 to 5%. According to analysis on planting methods, grain yield changed between 7430-7950 kg / ha-1, test weight between 80.9 -81.1 g and thousand of grain weight between 44.7-47.1 g. According to results; grain yield and hektoliter weight were high in conventional method of planting. Saddle planting system, in irrigation, weed struggle, disease, pest management, harvesting operations can be made more comfortable. Acording to result of this study, depending on the conditions (alternation planting cotton, irrigated areas, or the price of seed is high ) suggest that saddle planting system can be applied successfully in wheat cultivation.

الكلمات الدلالية


Article
EFFECT OF NITROGEN FERTILIZATION ON GROWTH CHARCTERESTIC AND HAY YILD OF BARLEY VARITES
تأثير التسميد النتروجيني في صفات النمو وحاصل الدريس لأصناف من الشعير.

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الخلاصة

A Field experiment was carried out in the growing seasons (2009-2010) and (2010-2011) at the experimental Station of College of Agriculture and Forestry, Mosul University, to study the effect of Nitrogen Fertilizer Levels, zero, 80 and 120 Kg N/ha as one dose and split applications on growth characteristics and Hay yield of Barley Cultivars namely; Fourat, Zanbaga , Aswed Arbai and two-rowed local black’.The experiment was applied by Using Split –Plot in Randomized Completely Block Design with three replicates. Nitrogen Fertilization have no clear effect on growth characters and hay yield in the first growing season due to the low rainfall and its irregular distribution, this was true for the one dose and split application of the fertilizer, with positive and negative response, while in the second season the Fertilizer levels were positively affected on flag leaf area, relative growth rate, fresh and dry yield of forage, which their valule at the Fertilizer level 80 Kg N/ha as one dose was superior over their values at control treatment by 26%, 3.6%, 27.9% and 33.3% respectively. Splitting Nitrogen level 80Kg N/ha caused increase in relative growth rate in the First season , and increase flag leaf area, fresh and dry forage yield in the second season. While splitting Fertilizer level 120 Kg N/ha increased the flag leaf area, fresh and dry forage yield in both growing seasons. In the first growing season, the local black variety was superior in all growth characters and hay yield with the exception of Flag leaf area, while in the second growing season the variety Zanbaga was surpassed over other varieties in most growth characters and hay yield

الكلمات الدلالية


Article
EFFECT OF NITROGEN FERTILIZATION ON GROWTH CHARCTERESTIC AND HAY YILD OF BARLEY VARITES
تأثير التسميد النتروجيني في صفات النمو وحاصل الدريس لأصناف من الشعير.

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الخلاصة

A Field experiment was carried out in the growing seasons (2009-2010) and (2010-2011) at the experimental Station of College of Agriculture and Forestry, Mosul University, to study the effect of Nitrogen Fertilizer Levels, zero, 80 and 120 Kg N/ha as one dose and split applications on growth characteristics and Hay yield of Barley Cultivars namely; Fourat, Zanbaga , Aswed Arbai and two-rowed local black’.The experiment was applied by Using Split –Plot in Randomized Completely Block Design with three replicates. Nitrogen Fertilization have no clear effect on growth characters and hay yield in the first growing season due to the low rainfall and its irregular distribution, this was true for the one dose and split application of the fertilizer, with positive and negative response, while in the second season the Fertilizer levels were positively affected on flag leaf area, relative growth rate, fresh and dry yield of forage, which their valule at the Fertilizer level 80 Kg N/ha as one dose was superior over their values at control treatment by 26%, 3.6%, 27.9% and 33.3% respectively. Splitting Nitrogen level 80Kg N/ha caused increase in relative growth rate in the First season , and increase flag leaf area, fresh and dry forage yield in the second season. While splitting Fertilizer level 120 Kg N/ha increased the flag leaf area, fresh and dry forage yield in both growing seasons. In the first growing season, the local black variety was superior in all growth characters and hay yield with the exception of Flag leaf area, while in the second growing season the variety Zanbaga was surpassed over other varieties in most growth characters and hay yield

الكلمات الدلالية


Article
EFFECT OF TIMES OF NITROGEN FERTILIZER APPLICATION ON GROWTH AND PROTEIN YIELD IN BREAD WHEAT (Triticum aestivum L,) UNDER NORTHERN AREA'S CONDITIONS
تأثير مواعيد إضافة السماد النتروجيني في نمو وحاصل البروتين لخمسة أصناف من الحنطة الناعمة (Triticum aestivum L.) تحت ظُروف المنطقة الشّمالية

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الخلاصة

A field experiment was conducted during the two growing seasons (2009-2010)/(2010-2011) at Al-Khazer location/Kalak (50 Km/to north Mosul city to study the effect of four times of nitrogen fertilizer application (All amounts of nitrogen applied at sowing; All amounts at tellering stage, 1/2 amount at sowing and 1/2 amount at tellering, and the other 1/2 amount at tellering and the other 1/2 amount at booting stage) using five of bread wheat varieties (Ipa 95, Ipa 99, Tmoz 2, Sham 6 and Noor). The experiment was set out as a Randomized completely block design (R,C,B,D) with three replication. The most important results could be summarized as follows :cultivars differed significantly in all studied characters and for both seasons, Sham 6 surpass significantly in percentage and yield of protein. The time of nitrogen fertilizer application affected significantly all characters for both seasons. The highest values were observed when nitrogen fertilizer applied 1/2 amount at tillering stage and 1/2 amount at booting stage. The number of days to 50% spike emergence and leaves area significantly Increased when nitrogen fertilizer was applied at tillering stage. The binary interaction between varieties and timing of nitrogen fertilizer application showed significant differences for most characters. The interaction between sham 6 and the time of nitrogen Fertilizer application at tillering and booting stage was surpass on percentage and protein yield and leaves area in the first season. The interaction between Ipa 99 and nitrogen fertilizer application at tillering and booting stage gave surpass in plant high and protein yield in the first season, where as the interaction between verity Noor with the nitrogen fertilization at sowing had the least number of days to 50% spike emergence in the two seasons. On the other hand variety Ipa 95 had a higher values in leaves area in the first season and in the number of tillers in the second season as compared with all other varieties,

الكلمات الدلالية


Article
RESPONSE OF CROWTH AND YIELD OF(TRIGONELLA-FOENUM-GRAECUM L.) TO SOWING DATES AND DIFFERENT SEEDING RATES
استجابة نمو وحاصل الحلبة Trigonella foenum-graecum L. لمواعيد زراعية ومعدلات بذار مختلفة.

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الخلاصة

Field experiment was Conducted at Al-Rasheedia Research Station under moderate rainfall area (350-450 mm) which is located 5Km North of Mosul city, for the growing seasons 2008/2009 and 2009/2010 to study the effects of 5 seeding rates 40, 80, 120, 160, 200 Kg/ha under 4 Sowing dates. Which is extended from Mid Nov. 2011- 2nd Jan. 2012, 15 days intervals. The experiment was organized as Randomized Completely block design (RCBD) with three replications.The results showed superiority of seed yield of the first sowing date 15 Nov. which yielded 370 and 886 Kg/ha over the other dates. Number of pods/plant. Wt. 1000 Seeds and height of plant were followed a similar trend. In respect to, seeding rate of 120 Kg/ha gave highest values of seed yield 368 and 947 Kg/ha for the growing season 2008/2009 and 2009/2010 respectively. Whereas the lowest and the highest seeding rate 40 and 200 kg/ha gave 260 and 521 kg/ha for the two growing seasons in comparison with 252 and 686 Kg/ha for the growing season 2009/2010. There was a significant interaction in seed yield between sowing dates and seeding rates for the growing season 2009/2010.

الكلمات الدلالية


Article
PERFORMANCE STUDY OF GASPARDO MECHANICAL SEEDER IN SOWING WHEAT UNDER SUPPLEMENTRY IRRIGATION
دراسة أداء الباذرة الميكانيكية كاسباردو في زراعة محصول الحنطة تحت الري التكميلي

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الخلاصة

Wheat Field experiment was conducted at Albo-Nasser location in Nineva governorate under sprinkler irrigation system to study the performance mechanical seeder (Gaspardo). Three factors were selected for this study (Sowing rate (S.R.) : 100 ,120kg/ha. ,Sowing depth (S.D.) :4 ,6 cm and forward speed of seeder(F.S.) : 4.5 , 5.5 km/hr) .The experiment was set out as RCBD design with three replications. The results showed that there was 30% yield loss in grain yield under shallow seed depth. The spike lengths and numbers of grain/spike were significantly higher when plants sown at seeding rate 100 kg/ha as compared with the other seeding rate used in this research .Moreover sowing depth at the level of 6cm and with ground seeder speed at 5.5 km/hr led to a significant increase in the following traits ;No. of plantsm2 ,actual field germination% and slippage % . The interaction between S.R. (120 kg/ha), S.D. (6 cm) and F.S. (5.5) km/hr led to significant increase in grain yield kgha. And higher value in No. of plantsm2 and accepted slippage percentage.

الكلمات الدلالية


Article
EFFECT OF FACE AND GROWTH STAGE IN QUANTITATIVE AND QUALITITATIVE CHARACTERISTICS OF SINJAR MOUNTIAN VEGETATION
تأثير الواجهة وطور النمو في الصفات الكمية والنوعية لنبت جبل سنجار

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الخلاصة

This study was conducted in the first half of 2002 to determine the effect of the Aspect (interface ) and growth stages in the qualitative and quantitative characteristics of the surrounding areas and within Sinjar Mountain vegetation. Sinjar mountain is located Northwest of Iraq ,within the admininstrative borders of the province Nineveh to the west of Mosul city up to 150 Km and is within northern part of the Badeat Aljazeera . The highest visible point on the mountain is located at altitude of 1460 m. above sea level ,while the lowest point is allocated at altitude of 500 m. above sea level. The quantitative and qualitative characteristics were significantly affected by the Aspect and the location within mountain . Most of the quantitative and qualitative characteristics of the vegetation grew inside mountain outperformed to their counterparts in the three interfaces ,with the superiority of of the qualitative and quantitative characteristics of the vegetation of the Northern face to their counterparts in the Southren and Western faces .The percentage of crude protein , soluble carbohydrates , ash , and ether extracts decreased ,while that of crude fibers increased in the forage of pastoral inside the mountain and the Aspects as growth progress ,

الكلمات الدلالية


Article
EVALUATION OF DIFFERENT INTERCROPPING SYSTEM IN SUNFLOWER (Helianthus annuus L.) ANDMUNGBEAN (Vigna radiata L.)
استخدام أكثر من طريقة إحصائية لاختبار المتوسطات في تجارب التحميل بين زهرة الشمس (Helianthus annuus L.) والماش Vigna radiata L.))

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الخلاصة

The experiment was carried out at Nineveh governorate. Two verities of Sunflower (Mungreen and Loess) and two verities of Mungbean (Greengram and Blackgram). were planted in five intercropping systems (one row Sunflower + one row Mungbean, two rows Sunflower + one row Mungbean, one row Sunflower + two rows Mungbean, two rows Sunflower + two rows Mungbean , and sole crop for sunflower and Mungbean).The experiment were by using Randomized Complete Block Design (R.C.B.D) with three replications. Testing the mean values of treatments by using: Duncan test and Dunnett test. The most important results can be summarized as follows: The treatment (one row Sunflower + two rows Mungbean) gave a higher values for most of the characteristics studied including (the head diameter, no. of seeds/head, weight of (1000) seeds, seed yield and biological yield in sunflower for both years. It was also observed that most of the intercropping systems gave a significant higher values then these planted as individual crops when using Dunnett test. The two treatments of sole Mungbean were superior in both years for both variety in all the investigated characteristics of the Mungbean yield except for the percentage of protein in the first year. and the sole Mungbean which were superior to intercropping when using Dunnett test.

الكلمات الدلالية


Article
EFFECT OF SODIUM CHLORIDE AND PROLINE ACID ON SOME GROWTH PARAMETERS OF WHEAT PLANT Triticum aestivum L.
تاثير كلوريد الصوديوم وحامض البرولين في بعض مؤشرات النمو لنبات الحنطة. Triticum aestivum L

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الخلاصة

Pots experiment was conducted in the glasshouse of Biology Department,College of Education Ibn-AL-Haitham/ University of Baghdad. The purpose of this research is to study the effect of Sodium Chloride ( 0,50,100,150) mM.Lˉ¹and Proline acid (0,10,20,30)PPm and their interactions on some growth parameters included:Plant hight , Leaf area , Sodium and Chloride concentration and the content of total Chlorophyll of wheat plant cultivar Ibaa 99. The results indicated that Salinity stress affected plant growth and caused a significant decrease in the mean of studied growth parameters ,morover foliar sprying with Proline acid caused a significant increase in the mean growth parameters.The interactions was significant in which the results indicated that foliar sprying with Proline acid increased plant ability to tolerate Sodium Chloride effect.

الكلمات الدلالية


Article
EFFECT OF SEEDS SIZE AND PLANTS SPACING ON YIELD AND ITS COMPONENTS OF TWO SYNTHETIC VARIETIES OF CORN (Zea mays L.)
تأثير حجم البذور ومسافات الزراعة في الحاصل ومكوناته لصنفين تركيبين من الذرة الصفراء (Zea mays L

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الخلاصة

A field experiment was carried out in the growing season 2010 at two locations (Mosul and Kalak) , to study the effect of seed size (large and small) on the yield and yield components of two Zea mays varieties (buhouth-106 and Sara) using four planting spaces within rows (15,20,25,30 cm.). The experiment was set out as with three replications in RCBD design. The results illustrated that there were no significant differences between plants grown from large or small seeds in most of the yield and yield components characters. An except was found for harvest index (HI) and seed index for plants grown from large seed at Mosul location only. Sara Variety was superior in most yield characters at Kalak location and in (HI) at two locations. While Buhouth-106 was superior in the biological yield at Mosul location only ,It was observed that the ear weight, grain weight , No. of grain /ear, 500- grain weight and plant grain yield were increased at 30 cm. plant space at two locations. While grain yield (ton/ha), Biological yield and (HI) were increased at 15 cm. plant space at two locations .The second order interaction did not show a significant differences in most yield characters. The study clarify that the effect of seed size restricted in emergence and seedling stages only while plant density and varieties affected strongly in later growth stages .

الكلمات الدلالية


Article
STUDY FOR SOME TRAITS OF GROWTH , YIELD AND ITS COMPONENTS OF NEW CULTIVARS OF WHEAT AND BARLEY GROWN IN DIFFERENT ENVIRONMENTAL LOCATIONS AT NINEVAH PROVINCE,
دراسة لبعض صفات النمو والحاصل ومكوناته لأصناف جديدة من محصولي الحنطة والشعير المزروعة في مواقع بيئية مختلفة في محافظة نينوى

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الخلاصة

In order to compare the growth and yield traits of new introduced cultivars of wheat and barley crops in different environmental locations, this study was carried out during 2009 and 2010 seasons in (37) field of (11) farmers with total area (460) Iraqi Donum(2500m2) within the geographical area of Nineveha province . Six varieties of cereals were selected for this study two cv,s of bread wheat soft, Triticum aestivum L, and two cv.s of durum wheat Triticum durum Desf, which is Doma -1 and ACSAD / 65 and two cv.s of Barley Hordium spp which is Zanbaka and Furat-4. All fields were fallowed in 2009 season then in the next sowing season. 2 plowing operations were made in all fields then planted with these cultivars in different environmental locations including Moderate Rainfall Area (MRA), High Rainfall Area (HRA) and supplementary Irrigation (SI ). Six main locations were selected shaikhan,, Telkief, Nimrud, alqush, yarimja and jleokhan. The experiment was planted at sowing dates in the 6 , 7 and 8 January 2010 monitoring and inspection field was carried out and yield and its components were studied, The experiment was set out as randomized complete block design (RCBD) with 3 replicates. The results showed a significant impact for the installation of the genetic and environmental factors which it was observed that cv. Doma-1 was superior in all traits under rainfed and SI comparing with Acsad-65,Furat/4 barley was superior in comparing with Zanbaka for most of the studied traits and the superiority of bread wheat Cham- 8 was observed for most traits in comparing with Bouhouth-4 under supplemental irrigation and rainfed area at all study sites.

الكلمات الدلالية


Article
Effect of Partitioning of Nitrogen and Potash Fertilizers on Growth, Yield and Quality of Three Corn Cultivars (Zea mays L.)
تأثير تجزئة السماد النايتروجيني والبوتاسي في نمو وحاصل ونوعية ونسبتي الزيت والبروتين لثلاث اصناف من الذرة الصفراء (Zea mays L.)

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الخلاصة

A field experiment was conducted In two locations at fall season 2008, first was in the fields of college of Agriculture - Tikrit University, and the second was in Abu siffa_ Ishaqi. The objective was to assess response of three varieties of corn (Bohoth 106, Eba 5012 and Almesara) to the dates of partitioning of nitrogen (N) and potash (K) fertilizer in four dates, first application of All the amount of (K) before planting and 50% of the (N) at planting and 50% when the plant reach 20 - 25 cm of height. The second was application of 50% of (N) and (K) at planting and 50% when the plant reach 20 - 25 cm, the third was application of 50% of (N) and (K) at planting and the rest 50% at the beginning of inflorescence emergence note, the fourth was application of 25% of (N) and (K) at planting and 50% when the plant reach 20 - 25 cm, while the rest of 25% was applied at the beginning of inflorescence emergence note. Randomized completed block design (RCBD) was used with three replicates. Results of the first location showed superiority of Almesara variety at the first, third and fourth dates of partitioning on the attributes, leaf area index, percentage of fertility, ear diameter and dry weight yield. Bohoth 106 was superior at the first date of partitioning on attributes, ear height, number of leaves of the plant, While Eba 5012 was superior at the second date of partitioning in dry weight yield. Results of the second location showed superiority of Almesaea at the fourth date of partitioning in leaf area index, and Bohoth 106 was superior at the first and third dates in height and number of leaves of plant, while Eba 5012 was superior at the fourth date of partitioning in percentage of lodging plants.

الكلمات الدلالية


Article
Effect of Ethephon on Physiological Growth Parameters And Mineral Component Of Fenugreek (Trigonella foenum-graecum L.)
تأثير الأثيفون في بعض دلالات النمو الفسيولوجية والتركيب المعدني لنبات الحلبة (Trigonella foenum-graecum L.)

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الخلاصة

This study was carried out in green under field condition at department of biology/college of Education for the winter season 2003-2004 to investigate the effect of ethephon concentration (0, 500, 1000, 1500, 2000, 2500, 3000, 3500, 4000) ppm. a.i. spraying at three growth stages (seedling stage at 30 days, vegetative growth stage at 6o days , beginning flowering growth stage at 90 days) on some growth parameters ( vegetative dray weight , Leaf Area Ratio (L.A.R.), Leaf Area Duration (L.A.D.), Net Assimilation Rate (N.A.R.), BioMass Duration (B.M.D.), Crop Growth Ratio (C.G.R.) and mineral composition (N%, P%, K%) of local fenugreek (Indian helpa). The design which used is R.C.B.D. with three replicates. The highest figures for (vegetative dry weight, leaf area ratio L.A.R., leaf area duration L.A.D., Biomass Duration B.M.D., crop growth ratio C.G.R.) were found at ethephon (1000-1500) ppm. Ethephon at high levels (3500)ppm. increased the value of net Assimilation Rate N.A.R. also the ethephon at (2000) ppm caused highly increased in N% ,P%. K% percent.The first spraying date at seedling period were significantly advanced at all vegetative growth values than other spraying dates.

الكلمات الدلالية


Article
EFFECT OF SOWING DATES AND PLANT DENSITY ON GROWTH CHARACTERISTIC OF TWO CORN VARIETIES(Zea mays L.)
تأثير مواعيد الزراعة والكثافة النباتية في صفات نمو صنفين من الذرة الصفـــــــراء ( Zea mays L. )

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الخلاصة

Field experiment was conducted out in spring season (2008) at two locations . The first at Agricultural Research Station in the Field Crops Department, University of Mosul and the second one at Twabzawa Village in Bashika (25 Km East Mosul) . The experiment was set out using Split-Split Plot Design in Randomized Complete Block Design (R.C.B.D) with three replications of each treatment . Four sowing dates (20/3, 5/4, 20/4, 5/5), three plant densities (250, 333 and 500 thousand plant/ha) and two varieties of corn (Bohoth 106 and Rabea) were used for each experiment .The most important results obtained from the reserch can be summarized as follows :All growth characters were significantly affected by sowing dates of corn at Colleg Research Station except for the Net Assimilation Rate (NAR) Whereas the following characteristic, leaves/plant, Crop Growth Rate (CGR) did not differ significantly by sowing datets at Twabzawa site .Most of the growth characters at the second sowing date (5/4) were superior to the same characters at other sowing dates at the Collage Station location, whereas at Twabzawa location the significant superiority for most growth characters was achieved at the 1st sowing dates .The results revealed that all growth characteristic except the NAR and R.G.R. was significantly affected by plant density at Twabzawa Location .The results showed that there were no significant differences between the variety Bohoth 106 and Rabea for all characteristic at both sites except that for CGR at Collagel Location.

الكلمات الدلالية


Article
FACTORIAL MATING IN DURUM WHEAT (Triticum durum Desf.)
التهجين العاملي في الحنطة الخشنة (Triticum durum Desf.)

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الخلاصة

Eight new durum wheat genotypes (Triticum durum Desf.) were used in this study which were introduced from the International Center for Agricultural Research in the Dry Areas (ICARDA) , in addition to the two locally grown varieties; Waha and Um-Rabie . The entries were crossed according to factorial mating design (six males and four females) to get 24 crosses. The characters studied were number of days to 50 % flowering , plant height, spike length, Flag leaf area / cm2 , number of grains / spike, number of spikes / m2 , biological yield , grain yield , harvest index , 100-grain weight , protein content and ash contents . Male mean squares were significantly different for all the characters except for the number of days to 50 %, spike length, where as the female mean squares were significantly different for all the characters . Interaction between males and females was significant for all the characters except for the number of days to 50 % flowering and 100-grain weight .The ratio of the general to specific combining ability components for the males was less than one for all the characters except for the 100-grain weight, while this ratio was less than one for all the characters for females except for 100-grain weight and ash content . Two genotypes (Omgenil-8) and (Sebatel) Were superior in general combining ability effects for most characters. The hybrids, (Omgenil-8*Terbol), (Azul-5*Syrian-4) and (Um-Rabie*Maamouri-3) were superior in specific combining ability effects for most characters .

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Article
EVALUATION OF SEED COTTON YIELD AND SOME OF ITS COMPONENTE FOR UPLAND COTTON GENOTYPES, ESTIMATION OF SOME GENETIC PARAMETERS AND PATH COEFFICIENT ANALYSIS
تقويم صفات حاصل القطن الزهر وبعض مكوناته لتراكيب وراثية من قطن الابلند وتقدير بعض المعالم الوراثية وتحليل معامل المسار

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الخلاصة

Twenty genotypes of upland cotton were planted at Al-Haweja region under two spaces between rows (60 and 75cm) using split plots system in randomized complete block design with three replications to evaluate seed cotton yield and its components from other traits (plant height, number of fruiting branches, number of bolls per plant, seed index, boll weight, lint index and earliness), in addition to estimation of some genetic parameters and path coefficient analysis between seed cotton yield and its components. The results showed that 75cm row space gave 6.25% increase in seed cotton yield as compared with 60cm row space. Some genotypes was significantly superior than others for large number of traits including seed cotton yield. Lachata was the best variety, followed by Iranian 26 and IK378 and then IK259 and SP8886 varieties. Broad sense heritability ranged from (17.86%) for earliness and (83.78%) for plant height. Generally it was high for plant height, number of fruiting branches, number of bolls per plant, boll weight and lint index, moderate for seed index and low for the rest traits. It was shown that seed cotton yield had positive significant genotypic and phenotypic correlations with plant height, number of fruiting branches, boll weight, lint index and earliness. Path coefficient analysis revealed that earliness had high direct effect on seed cotton yield (genetically and phenotypically) and it was also significant in indirect effects through some other traits, followed by number of bolls per plant and boll weight phenotypically. This is important in possibility of these traits to use as selection indices for higher yield performance in breeding programs.

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Article
GENOTYPIC AND PHENOTYPIC VARIATION AND SELECTION INDEX IN F4 OF TWO ROWBARLEY(Hordeum vulgare L.
التباينات الوراثية والمظهرية ودليل الانتخاب في الجيل الرابع للشعير ثنائي الصفوف Hordium vulgare L.

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الخلاصة

F4 population derived from diallel crosses between five two row varieties (Local Aswad, Tuwwtha , Arta , Zanbaka and Gezira 2) to study genotypic and phenotypic variances , heritability , genetic advance and study genotypic and phenotypic correlations of number of days to flowering and maturity , plant height ,number of spikes and grains per spike, 100 grains weight and grain and biological yield and determine better selection index which gave highest genetic advance for grain yield. Significant differences were observed between genotypes for all studied characters. Genotypic and phenotypic variances values were low for number of days to flowering and maturity, number of grains per spike, 1000 grains weight and high for plant height, no of spikes and grain and biological yield. High broad sense heritability values were obtained for number of days to maturity, plant height, number of grains per spike and 100 grain. Grain yield correlated genetically negatively and highly significant with number of days to flowering and 100 grain weight and positively with plant height and number of spikes and grains per spike and biological yield. The selection index including number of grains per spike was the best one which gave high relative efficiency on which we could depend to estimate the values of selection index for the studied genotypes.

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Article
Performance of Parents and F1 Using Combining Ability in Maize
أداء الآباء وهجن الجيل الأول باستخدام المقدرة الاتحادية في الذرة الصفراء

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الخلاصة

Elght inbred lines of maize were used in complete diallel crosses to study the combining ability for the characters, number of days to silk and tassel flowering,plant height,main ear height,number of leaves over the upper ear,number of leaves in plant,leaf area surrounding the upper ear,ear length,ear diameter,number of rows in ear,number of grains in ear,100-grain weight,plant grain yield and oil and protein percentage .The parents of their acrosses planted using randomized complete block design with three replications. Data were analysed according to Griffing analysis (1956),fi×ed model,method-1.Mean squares for general and specific combining abilities were significant for all characters.The ratio of the components for the the two abilities was less than one for all the characters e×cept for the height of the main ear and number of leaves in plant.The inbred line DK-17 was better than others in its general combining ability effect for number of days to silk flowering, plant height,height of main ear,number of leaves over the main ear,number of leaves in plant,leaf area, ear length,number of rows in ear,number of grains in ear,100-grain weight,plant grain yield and protein percent,The cross ZP707*CA21K had a good specific combining ability effect for all the characters.

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Article
COMBINING ABILITY ANALYSIS IN F2 GENERATION FOR YIELD AND SOME OF ITS COMPONENTS IN UPLAND COTTON Gossypiom hirsutum L.
تحليل التهجين التبادلي في الجيل الثاني لصفات الحاصل وبعض مكوناته في قطن الابلند Gossypium hirsutum L,

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الخلاصة

Cotton varieties, Halab1, SP8886, Coker5114, Deltapine5409, Lachata, Dunn1047 and Deer22, and all their F2 half diallel crosses were planted at field of Agriculture and Forestry college (Center of Mosul university) in May, 4, 2006 using randomized complete block design with three replications to study general and specific combining abilities for parent and crosses respectively, phenotypic variance components and some genetic parameters for characters: plant height, number of vegetative and fruiting branches, number of bolls per plant, boll weight, seed and index indices and seed cotton yield per plant. Analysis of variance results showed that mean square of genotypes, general and specific combining ability was significant for all characters. The variety Halab 90 appeared as a good general combiner, and (SP8886 x Coker5114), (SP8886 x Deltapine5409) and (Coker5114 x Deer22) crosses as good specific combiners for largesr number of characters. The total genetic variance was high as compared with environmental variance for plant height and number of fruiting branches, and the reverse for the remainder characters. Broad sense heritability ranged from 24.051% for seed cotton yield per plant and 71.101% for plant height, and it was high for plant height, number of fruiting branches and lint index, moderate for number of vegetative branches and boll weight, and low for number of bolls, seed index and seed cotton yield per plant. It was shown that selection for plant height gave higher percent of response to selection (5.275%) from original mean of yield, followed by number of bolls which gave percent of response to selection (2.783%) from original mean of yield.

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Article
ESTIMATION OF SOME GENETIC PARAMETERS FOR YIELD AND ITS COMPONENTS IN UPLAND COTTON
تقدير بعض المعالم الوراثية للحاصل ومكوناته في قطن الابلند

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الخلاصة

Eight upland cotton varieties (Iranian, Bulgarian Grrd26, Lachata, French CA22, Syrian strain106, Pima, Bulgarian Chirpam 539 and Coker 310) were crossed in a half diallel mating system to assess the genetic of plant height, number of fruiting branches, number of bolls per plant, boll weight, earliness, ginning outturn and seed cotton yield per plant utilizing Mather and Jinks (1982) The results showed highly significant differences between genotypes for all the characters. Adequacy tests of additive dominance model revealed that data of all the characters were partially adequate for genetic interpretation except for ginning outturn. Additive component (D) was significant from zero for plant height, number of fruiting branches, ginning outturn and seed cotton yield per plant and was lower in magnitude than dominant components (H1 and H2) of variation for all traits. This was firmly supported by the value of (H1/D)0.5. Asymmetrical distribution of dominant and recessive genes in parents was found for number of fruiting branches, boll weight, ginning outturn and seed cotton yield per plant due to unequal estimates of dominant components (H1 and H2). This was confirmed by the value of H2/4H1. Graphical representation of Wr/Vr demonstrated that additive gene action plays a role in controlling the inheritance of plant height, number of bolls per plant, boll weight and seed cotton yield per plant, while the traits number of fruiting branches, earliness and ginning outturn was under the influence of over dominance. Low narrow sense heritability was exhibited by number of fruiting branches and boll weight, moderate for remaining traits, and its values ranged between 16.95% for number of fruiting branches and 53.18% for ginning outturn. This indicates that all the traits were under the control of dominant gene action, therefore breeding hybrids were useful for these traits.

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Article
EVALUATION OF SEED COTTON YIELD AND SOME OF ITS COMPONENTE FOR UPLAND COTTON GENOTYPES, ESTIMATION OF SOME GENETIC PARAMETERS AND PATH COEFFICIENT ANALYSIS
تقويم صفات حاصل القطن الزهر وبعض مكوناته لتراكيب وراثية من قطن الابلند وتقدير بعض المعالم الوراثية وتحليل معامل المسار

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الخلاصة

Twenty genotypes of upland cotton were planted at Al-Haweja region under two spaces between rows (60 and 75cm) using split plots system in randomized complete block design with three replications to evaluate seed cotton yield and its components from other traits (plant height, number of fruiting branches, number of bolls per plant, seed index, boll weight, lint index and earliness), in addition to estimation of some genetic parameters and path coefficient analysis between seed cotton yield and its components. The results showed that 75cm row space gave 6.25% increase in seed cotton yield as compared with 60cm row space. Some genotypes was significantly superior than others for large number of traits including seed cotton yield. Lachata was the best variety, followed by Iranian 26 and IK378 and then IK259 and SP8886 varieties. Broad sense heritability ranged from (17.86%) for earliness and (83.78%) for plant height. Generally it was high for plant height, number of fruiting branches, number of bolls per plant, boll weight and lint index, moderate for seed index and low for the rest traits. It was shown that seed cotton yield had positive significant genotypic and phenotypic correlations with plant height, number of fruiting branches, boll weight, lint index and earliness. Path coefficient analysis revealed that earliness had high direct effect on seed cotton yield (genetically and phenotypically) and it was also significant in indirect effects through some other traits, followed by number of bolls per plant and boll weight phenotypically. This is important in possibility of these traits to use as selection indices for higher yield performance in breeding programs.

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Article
PHENOTYPIC STABILITY FOR YIELD, ITS COMPONENTS AND QUALITY CHARACTERS OF INTRODUCED LINES OF TRITICALE (X. Triticosecale Wittmack) UNDER LIMITED RAINFALL CONDITION IN NORTHERN OF IRAQ
الاستقرارالمظهري لصفات الحاصل ومكوناته والنوعية لسلالات مدخلة من القمح الشيلميTriticosecale Wittmack X. تحت الظروف الديمية في شمال العراق

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الخلاصة

30 triticale genotypes (29 genotypes introduced from CIMMYT as well as Rwaida the local variety ) were planted for two consecutive seasons 2009-2010 and 2010-2011 in two sites ; first in the fields of the college of Agriculture and Forestry / University of Mosul, the second in a research station Cardhrash–college of Agriculture / University of Salahaddin (Arbil). Four techniques has been compared with the safety-first selection indices ,vis , variance across environments (EV) , Eberhart and Russel (ER) , Finlay and Wilkinson (FW) and Shukla (SH). Analysis of variance exhibited significant differences between genotypes at 1% for number of days to 75% heading, number of grains per spike, 1000 grains weight, grain yield and protein and dry glutein percentage at both sites and for two seasons and maturity in 2009 for both sites and number of spikes in m2 in Mosul and Arbil for 2010 season. Combine analysis showed highly significant differences between genotypes and genotypes X environments interaction for all studied traits except grain yield. Rwaida the local variety was earlier in heading and maturity of the two sites in 2009 and also in the environments average and the genotype POPP-TAHAR was superior for grain yield where it gave 1650.8 and 2352.8 kg /donum in Mosul site for two seasons, while in Arbil site in 2009 2-LIRON genotype was superior and gave 2585.9 kg /donum and in 2010 season the SN64/EER genotype was superior and gave 3202.5 kg /donun. LIRON genotype was in first rank by FW, ER indices and 1-LIRON ranked first by EV and SH and 1715/CENT came in second rank for 1000 seed weight and grain yield by EV and SH and ranked eleventh by FW and ER.

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Article
COMBINING ABILITY ANALYSIS FOR SEED COTTON YIELD, SOME OF ITS COMPONENTS AND RELATIVE SUSCEPTIBILITYITY FOR BOLL WORM INFESTATION
تحليل القدرة على الاتحاد لحاصل القطن الزهر وبعض مكوناته والحساسية للإصابة بدودة جوز القطن الشوكية

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الخلاصة

Upland cotton varieties and lines viz. Coker310, SP8886, Lachata, Montana, Halab33, AC22, Gourd26, Iranean16, Syrian line S230 and Chrip-AM539 and their half diallel crosses were planted at two locations, the first at College of Agriculture and Forestry, Mosul University in April, 19, 2010 and the second at Al-Hawija, Kirkuk Governorate in April, 20, 2010 using randomized complete block design with three replications. Combining analysis of the two locations data carried out and variances and effects of general and specific combining abilities were estimated for characters: plant height, number of fruiting branches, number of bolls per plant, boll weight, seed index, lint index, relative sensitivity to boll worm infestation and seed cotton yield per plant. The results showed that location mean square was significant at 1% level for number of bolls per plant and relative sensitivity to boll worm infestation, and at 5% level for seed cotton yield per plant, while mean square of genotypes, general and specific combining abilities and their interactions with locations were highly significant for all characters. The variety SP8886 appeared as good general combiner for five characters including seed cotton yield and relative sensitivity to boll worm infestation, followed by varieties Halab33 and Iranean16 and Syrian line S230. The hybrid (SP8886 x Iranean16) was good specific combiner for six characters including seed cotton yield and relative sensitivity to boll worm infestation, that is useful to use these genotypes in future breeding programmes.

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Article
Effect of tillage systems and seed rates on growth and yield of Barley ( Hordum vulgas .L( and growth of associated weeds in dryland farming.
تأثير نظم الحراثة وكمية البذار في نمو وحاصل الشعير Hordum vulgaris.L والادغال المرافقة له في المناطق الديمية .

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الخلاصة

A field experiment was conducted drying growing season 2010-2011 at Talkief and Hamdania locations in Naniva provancy to study the effect of tillage systems (no till , conventional till ) and seeding rates (80 , 100 , 120 kg/ha) on weed growth and barley productivity var .Reehan . However , the locations was the third factors . The result showed that the number dry weight .of grass weeds were reduced up to 42% in no till if it compered with con. till but there were no significant ( No.Dwt) between the two systems with broadleave weeds .Yield of Barley was increased in no till when it compared with con.till . On other hand , there were reduction in number or dry weight of grass and broadleaves weeds at increasing seed rates which reflected on high yield production . In general , grass weeds (No.Dwt) and Dwt of broad leav weeds had reduction in no till at seed rate 100 kg/ha at Talkie which it rised the barley yield at every seed rate, while superiority of yield was seen at 120 kg/ha seed rate at Hamdania .

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Article
CHARACTERIZE PATHOGEN RACES AND RESISTANT GENES ACCORDING TO REACTION ON DIFFERENTIAL VARIETIES UNDER SYRIAN CONDITION
دراسة السلالات الفيزيولوجية لممرضي التفحم الشائع على القمح المنتشرة في سورية وتوزعها اعتماداً على رد فعل الأصناف التفريقية

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الخلاصة

Reaction of tested differential varieties against 27 bunt isolates (15 T .caries and 12 T.leavis), collected in 2007. Four Isolates (A5, A6, A9 and A10) overcome the resistant genes Bt0 and Bt7, and were designated as race T-1. Also, seven Isolates (H11, H12, H13, H14, K20, K21 and K22) defeated the resistant genes Bt0, Bt2 and Bt3, and were designated as race T-11; two other isolates (H15 and Da16) defeated resistant genes Bt7, Bt1 and Bt0, and were called race L-4. Finally, five Isolates (A3, A4, A5, A7 and A8) defeated the resistant genes Bt0, Bt1, Bt2 and Bt3, and were designated as race L-9. As far as the rest of isolates, they were not similar in their interaction with known universal differential varieties, and are therefore considered as new races and were given new codes. Isolates that broke down the resistance genes Bt0, Bt2, Bt3, Bt4, Bt6, Bt7, Bt13, Bt14, Bt15 and Bp, named as races L-13 and T-17; isolates that defeated resistance genes Bt0, Bt7, Bt13, Bt14, Bt15 and Bp, were named races L-14 and T-18, and the isolate that broke down the resistance genes Bt13, Bt14 and Bt15, were named race L-15

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Article
INJURY OF WHEAT LEAF MINER LARVAE Syringopais temperatella Led. ON TWO WHEAT VARIETIES UM -RABEE & TELL-AFAR
ضرر يرقات حفار أوراق الحنطة Led. Syringopais temperatella في صنفي الحنطة أم ربيع وتلعفر3

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الخلاصة

A field experiment was conducted out of college of agriculture and forestry during the growing season of 2007- 2008. The aim of the present study is to determine the damage of the larvae of wheat leaf miner larvae Syringopais temperatella Led., for two wheat varieties Um-RAbee & Tell-Afar3.. The result of this research revealed that the percentage of infested plants and leaves were positively proportional with increasing the number of larvae and negatively to the crops components. The injury was more obvious with the bread wheat variety (Tell-Afar 3) in which it was observed that the larvae favorites this variety more than the other one especially when added 100 larva / m2 at 12 / 4 / 2008 in percentage of infested plants & leaves reached 96.66 and 90.79 % respectively. Moreover, Tell-Afar3 variety gave the lowest values in the characteristics (leave area, weight of flag leave, weight of biological yield, number of spikes, length of spike, number of grains in spike, weight of 1000 grains, and grain yield ) with an averages of (9.07 cm 2, 0.046 mg, 425.00 g/m2, 200.00 spike / m2, 2.65 cm, 7.56 grain / spike, 33.18 g and 144.00 g/m2), for each, respectively. Whereas the durum wheat variety Um-RAbee was less favorite from larvae in which it was reflected in the percentage of number of infested plants and leaves plants and yield components in which the lowest percentage of infested plants and leaves were 83.33 and 67.89 % ,respectively. As well as it was showed increase in the characteristics (leave area, weight of flag leave, weight of biological yield, number of spikes, number of grains in spike, weight of 1000 grains, and grain yield ) with an average mean of (10.87 cm 2, 0.057 mg, 480.00 g/m2, 216.33 spike /m2, 9.30 grain / spike, 38.55 g and 167.63 g/m2) for each, respectively.

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Article
THE DAMAGE OF THE NYMPHS AND ADULTS NUMBER OF SUNN PEST Eurygaster integriceps PUTON IN THE WEIGHT OF THOUSAND GRAINS, GRAINS YIELD AND PROTEIN SEDIMENTATION FOR FOUR WHEAT VARIETIES IN DUHOK PROVINCE
ضرر حوريات وكاملات حشرة السونة Eurygaster integriceps Puton في وزن الألف حبة وحاصل الحبوب وترسيب البروتين لأربعة أصناف من الحنطة في محافظة دهوك

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الخلاصة

Field experiment was conducted to estimate the damage caused by number of nymphs and adults of Sunn Pest Eurygaster integriceps Puton to four wheat varieties (Aras, Tamuz-2, Atra,S and Crezo) In Duhok province during both seasons 2004-2005 and 2005-2006. It has been shown that if there is increasing in the adult Sunn Pest from one pair to five pairs/m2 and from five to ten nymphs/m2, there would be decreasing in the weight levels of 1000-grain, grain yield (Kg/donum) and protein sedimentation value/cm3 for wheat varieties Aras, Tamuz-2, Atra,S and Crezo. The above studied characters have influenced greatly in the case of bread wheat in comparison with the durum wheat. The weight of 1000-grain, grain yield and protein sedimentation for durum wheat reached 42.99, 42.91 g & 980.91, 963.24 Kg/donum & 17.95, 16.36 cm3 compared with bread wheat 28.28, 27.89 g & 825.64, 826.21 Kg/donum & 23.02, 23.83 cm3 for two seasons, respectively.

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Article
Effect the Methods and Frequency Of Application By Using Different Doses Of Glyphosate and 2,4-D Herbicides In Controlling Water Hyacinth Eichhornia crassipes (Mart)Solms and Reducing Contamination In Water
تأثير طريقة وتكرار الإضافة لتراكيز مختلفة من مبيدي الكلايفوسيت و2,4-D في مكافحة نبات زهرة النيل Eichhornia crassipes (Mart)Solms في شمال العراق وتقليل التلوث البيئي.

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الخلاصة

The experiment was conducted during the growing season 2011 at College of Agriculture and forestry , Mousil University (Iraq).The aim of present study is control Water Hyacinth by using glyphosate and 2,4-D herbicides at different rate ,methods and frequencies of application and with different times between application. The experiment was set out as factorial design in randomization complete block design with three replicates .The experiment included three factors: 1-the type of herbicide with different doses methods of application, 2-the frequency of application and 3-the period of times to study effect of herbicides application on characters after spraying .The results showed that Glyphosate was more effective than 2,4-D in reducing dry weight of plant and the percentage of survival rate. Moreover it was observed that use rope-wick wiper of herbicide application was more satisfactory in reducing contamination in the water as compared with spraying method in which it was achieved of up 86.5% .The best herbicide control rate 1:10,1:5(herbicide : water )for Glyphosate and 2,4-D respectively .Moreover, it was observed that the period between two application 10-20 days more favorable for controlling water hyacinth plant in which it gives a 100% control when using glyphosate at dose of 450 g/donum when applied as foliar spray and repast the tremens twice after 20 days.

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Article
GENOTYPE ENVIRONMENT INTERACTION FOR SUNN PEST Eurygaster integriceps PUTON INFESTATION IN DURUM WHEAT
التداخل الوراثي البيئي في الحنطة الخشنة للإصابة بحشرة السونة Eurygaster integriceps Puton

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الخلاصة

Durum wheat varieties (Karonia, Um Rabie, Korfila, Semito, Crezo, Aksad , Sham3 and Atra S) were planted at the Faculty of Agriculture and Forestry Research Station, Duhok University, during the two seasons 2007/2008 and 2008/2009 to study genotype- environment interaction for crop traits (1000 grain weight, harvest index, protein sedimentation, germination percent and grain yield) and traits related to Sunn Pest infestation (numbers of mature, adults and nymphs of Sunn Pest, percent of infested grains per spike, number of infested leaves/m2, percent of non-carriers tillers/m2 and percent of infested spikes/m2). Combined analysis of variance for traits data of the two seasons showed that seasons mean square was significant at 5% level for harvest index and grain yield and non significant for remaining traits. The varieties mean square was significant for all traits except for number of adults Sunn Pest and germination percent. It was shown from Duncan's multiple range test that , the genotype environment interaction was significant for all traits except for number of adults Sunn Pest. Maximum grain yield was recorded by variety Crezo for both seasons (1115.6 & 1118.7 kg/donum) respectively, that is due to its surpass in other crop traits, and the reduction of Sunn Pest infestation related traits means.

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Article
Effect of Host and Kind of Oil on Some Nutrition Parameters of Trogoderma granarium Everts Larvae .
تأثير العائل الغذائي ونوع الزيت في بعض المقاييس الغذائية ليرقات العمر الثالث لخنفساء الحبوب الشعرية

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الخلاصة

The results of studying the effect of host kind and kindy of oil on some nutrition parameters of Trogoderma granarium Everts Larvae showed a significant variation on nutrition parameters according to the host and kind of oil . The Sunflower oil exhibited a highest percentage of food consumption reached 99.3 % and zero starvation percentage and 5 mg. seed consumed per Larvae from Sunflower , as compared to 72.25, 27.74 and 3.61 mg/ seeds/ larva respectively for those reared up on wheat and treated with the same oil. When the other oils were variation in effects on the nutrition parameters and Almond oil exhibit a highest percentage of starvation, mean average for starvation reached 90 % .

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Article
EFFECT OF SPRING AND AUTUMN SEASON SOWING DATES ON YIELD OF CORN SYNTHETIC VARIETIES. ( Zea mays L.)
تأثير مواعيد الزراعة للعروتين الربيعية والخريفية في حاصل ونوعية اصناف تركيبية من الذرة الصفراء Zea mays L.

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الخلاصة

The experiment was carried out at the field of the college of Agriculture and Forestry, Mosul univ. During spring and autumn seasons of 2010, to study the effect of sowing dates for two seasons on grain yield and its components and quality characters of four corn varieties (Zea may L.) . Randomized complete block design with three replications was used , each replicate included sixteen treatments combinations , four sowing date(in spring 1st and 15th march , 1stand 15th April), and( in autumn season 1st ,10th ,20th and 30th July),with four synthetic varieties Danya, Buhouth -106 , Sara and Rabee. The showed that most of characters were affected by planting date in both seasons. Corn plants which sowing at third date for both seasons and first date in autumn were surpass for yield and some yield components which were reflected on yield production as compared with the fourth date in both seasons. The varieties showed significant differences on their response to growth characters, yield its components and seed quality. the variety buhouth-106 had higher value for most growth characters and oil percentage at both seasons as compaired with other varieties. The variety Danya had higher value for most yield characters. Yield components and quality characters in both seasons. The interaction between sowing date and varieties showed highly significant differences in all growth ,yield and quality characters in both seasons. In spring the variety Danya which was sown in the third date had height grain yield ,but on autumn season the variety Rabee which was sown at third date had higher grain yield.

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