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مجلة العلوم الزراعية العراقية

ISSN: ISSN:00750530 / EISSN:24100862
الجامعة: جامعة بغداد
الكلية: الزراعة
اللغة: Arabic and English

This journal is Open Access

حول المجلة

تأسست مجلة العلوم الزراعية العراقية في كلية الزراعة جامعة بغداد عام 1966. كانت المجلة تصدر بعددين في العام فقط. بدأت المجلة عام 2000 باصدار ستة اعداد في السنة لكل مجلد, وهي الان في عام 2016 بالمجلد (47). تشمل ابحاث المجلة كافة العلوم الزراعية المرتبطة بالعلوم النباتية والحيوانية فضلاً عن المكننة الزراعية والاقتصاد الزراعي والارشاد الزراعي والعلوم الداعمة للعلوم الزراعية مثل الكيمياء والفيزياء لاسيما المرتبطة بالضوء والالحرارة والرياح وغيرها. يتضمن المجلد الواحد حالياً اكثر من 75 بحثأ حيث يتضمن العدد الواحد بين 20-25 بحثاً بحسب عدد الابحاث المقبولة في كل عدد

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معلومات الاتصال

tijasub@yahoo.com
tel :
009647804541817
009647512748875
address:
college of Agric. / Univ. of Baghdad
Al Jadreah, Baghdad, Iraq

جدول المحتويات السنة: 2008 المجلد: 39 العدد: 3

Article
EFFECT OF NPK APPLICATION TO THE SOIL AND SPRAYING ON SOME YIELD CHARACTERISTICS OF POTATO
تاثير اضافة NPK الى التربة والرش في بعض حاصل البطاطا

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الخلاصة

A field experiment was conducted in a private field at Al-Latifia region in a loamy soil. This was to study effect of three levels of Mixed NPK fertilizer added to the soil: (240-120-400), (180-90-300) and (120-60-200) kg N P K ha1- respectively. Plants were sprayed twice, four and six times with a fertilizer solution contains 3000 - 1500 - 6000 mg of NPK L-1 respectively, along with spraying water only on some yield characteristics. A randomized complete block design was used with three replications. At maturity vegetative parts of plants were harvested, dried, dry weight was determined, and total marketable yield of tubers was calculated. The results showed a significant increase in total weight of vegetative parts, total yield of tubers and marketable yield. Interaction between (240 - 120 —400) kg NPK ha-1 with spraying 6 times gave 20.135 t ha-1 of tubers and 2.157 t ha-1 of total dry weight of vegetative parts Six sprayings with the second level of fertilizer 180-90-300 kg NPK added to the soil reduced quantity of fertilizer added to the soil by 25% of the first level of fertilizer, on other words this offer an average of 130-143-241 kg of urea, MAP and potassium sulfate ha-1.

الكلمات الدلالية


Article
EFFECT OF GYPSUM CONTENT ON SOIL - W ATER CHARACTERISTIC CURVE AND UNSATURATED HYDRAULIC CONDUCTIVITY IN SOIL
تأثير محتوى الجبس في منحنى الوصف الرطوبي والايصالية المائية غير المشبعة في التربة

المؤلفون: N. T. Mahdi نمير طه مهدي
الصفحات: 10-23
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الخلاصة

A laboratory experiment was conducted to study some hydraulic properties such as soil-water characteristic curve, specific water capacity and hydraulic conductivity, for a soil contenting 5 to 502 g gypsum.kg-1 soil, for wide range of water content from residual water content 0r at soil-water potential 1500 k Pa to the saturated conditions 0s The soil-water characteristic curve was estimated, and the equation of van Genuchten (32) was used to determine the best-fit parameters a, n and m for experimental data of soil-water characteristic curve. Unsaturated hydraulic conductivity was calculated from the values of soil-water potential and the values of u, n, and m, by using a closed¬form integral equation which it is suggested by van Genuchten (32). The results showed that volumetric water content were changed with gypsum content changing under each different water potential. At soil-water potential 0.1 kPa the saturated water content was increased from 0.442 to the 0.442 cm 3. cm-3 when gypsum content was increased from 32 to the 502 g gypsum.kg-1 soil. But at soil-water potential 1500 kPa the residual water content was decreased from 0.255 to the 0.089 cm3.cm-3 with increasing gypsum content from 64 to the 502 g gypsum.kg-1 soil. The effect of these variations reflected on the calculated values of unsaturated hydraulic conductivity. The values of unsaturated hydraulic conductivity were increased from 1.29X10-4 to the 2.29xl0-2 em.min" with increasing gypsum content from 5 to the 502 g gypsum.kg-1 soil, at high water content. But at residual water content ( 0 = 0r ) the values of unsaturated hydraulic conductivity were decreased from 4.94x10-8 to the 6.36xl0-11 cm.min-1 with increasing gypsum content from 64 to the 502 g gypsum.kg-1.soil,

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Article
EFFECT OF POTASSIUM CONCENTRATIONS AND TIMES OF SPRAYING ON GROWTH AND YIELD OF MAIZE.
تأثير مواعيد وتراكيز البوتاسيوم المضافة رشا في نمو وحاصل الذرة الصفراء.

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الخلاصة

A field experiment was carried out during thc growing season of 2004 and 2005 at the Experimental Station /State Board For Agricultural Research / Abu. Ghraib / Ministry of Agriculture . to study the effect of foliar application of potassium on growth and yield of maize cultivar 5012 .Four concentrations of potassium (0,1000,2000 and 3000 mgk.l-1 ) were sprayed at three different stages of vegetative growth, flowering and grain filling .Results showed that spraying of 2000 mgk.l-1 led to significant increase in autumn 2005 on Weight of 1000 grains 259.6 g .nurnber of rows per ear (18.38) and number of seed per ear (673.56), There was no significant different with 3000 mgk.l-1 concentration that gave significant increase on yield grains 8289 kg/ha .However, time of spraying showed no significant effect on total grain yield. Combination of 2000 mgk.l-1 I concentration of potassium and the time of spraying at the three stages of growing showed a significant increase in autumn 2005 on number of rows per ear and number of seeds per ear and weight of 1000 grains. While grain yield showed the highest averages following the application of 3000 mgk.l-1 concentration at the three stages as compared with control that gave the lowest averages .While the interaction between growth stages for spraying potassium and concentration potassium fertilizer effect significantly on the weight of 1000 grains in 2004 .while grain yield gave highest range with mgk.l-1 at the three stages .The treatment of spraying potassium with 2000 mgk.l-1 •1 concentration at the three stages of growing gave significant increase on the weight of 1000 grains as compared with control that gave lowest average 248.9g.

الكلمات الدلالية


Article
XENIA…ONE OF THE MOST EXPERIMENTAL SOURCES OF ERROR
الزينيا.. أحدى مصادر الخطأ التجريبيدراسة مرجعية

المؤلفون: Majid Sh. Hamdalla ماجد شايع حمدان
الصفحات: 33-36
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الخلاصة

Deprecation of experimental error consider fundamnental for result of any trial .The precision of experiment conducting that researchers wish, include concepts of experimental error sources. The sources of experimental error vary, like differences in treatments conducting and technical mistakes which are occurring during samples harvesting and measuring, but the resulted effect from the genetic variation among population plant consider the major factor. This study is devoted for discussion one of the most important genetic variation that is xenia in sense of its turn in raising the level of experimental error in the field trial which included many genotypes of cross-pollinated crops, especially maize. Also, this study suggested convenience approaches to detract the experimental error due to xenia. The potential influence of xenia come out on grain yield, kernel growth rate, and duration of grain filling, in addition to change qualitative characters. These effects arc interacted with studied factor effects which are raising the level of experimental error. Epically with cultivars comparison or hybrids with it parents to investigate it's the performances and when leave it to open pollination, also, when factorial experiments are conducted which include many levels of any factor and many levels of genotypes for another factor. Therefore xenia is classify as one of experimental error sources. We have suggested many approaches to decrease the xenia effects by usage homozygous population with narrow genetic base, sellfing the inbreds in comparison trials, choice the convenient experimental design that proper tionai to the amount of genetic variation, and an excess the exprinrentai unit area.

الكلمات الدلالية


Article
EFFECT OF AMOUNTS OF IRRIGATION AND HERBICIDES ON GROWTH AND YIELD OF BREAD WHEAT AND WATER USE EFFICIENCY
تأثير كميات الري ومبيدات الأدغال في نمو وإنتاجية حنطة الخبز وكفاءة استخدام الماء

المؤلفون: Reasan K. Shati ريسان كريم شاطي
الصفحات: 37-54
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الخلاصة

A field experiment was conducted during winter seasons of 2004/2005 , 2005/2006, and 2006/2007 at experimental farm of the Department of Field Crop Sciences, College of Agriculture , Abu-Ghraib , Baghdad . Soil texture was a silty clay loam classified as Typic Torrifluvent The objectives were to investigate performance of bread wheat cv. Abu-Ghraib under levels of irrigation water |6230 m3.ha"', 4670m3.ha1-, 3120m3.ha1- and 1555 m3.ha1- and herbicides [diclofop-methyl , Logran, and Chevalier]. A split - plot design arrangement used with three replications. Herbicides diclofop-methyl,Logran, and Chevalier reduced number of weeds by 50.9 % , 53.4 %, and 95.9 % respectively in comparison to control. Herbicide diclofop-methyl reduced number of narrow leaved weeds by 96.3 %, while Logran reduced the number of broad leaved weeds by 92.9 % . The herbicides diclofop-methyl, Logran , and Chevalier caused consumption of the amount of water as 88.6 m3.ha', 86.2 m3.ha1- and 14.6 m3.ha1- while the treatment of control caused high consumption of amount of water 223.3 m3.ha'' therefore , those herbicides reduced consumption of the amount of water by 60.3 % , 61.4 % , and 93.5 % respectively as compared to control. The interaction of levels of irrigation water and herbicides was significant . Treatment of level of water applied 1555 m3.ha1- with plants gave lower of consumption of amount of water 70.3 m3.ha1- by weeds and 86.2 m3.ha1- by wheat.

الكلمات الدلالية


Article
‏ EXPOSING POTATO SEED TUBER TO HIGH VOLTAGE 2• EFFECTS ON YIELD QUALITY
تعريض تقاوي البطاطا لحقول كهربائية عالية الفولتية2 - ‏التاثير في صفات نوعية الحاصل

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الخلاصة

A field experiment was carried out at College of Agriculture/Abu-Ghraib, by exposing potato tuber seeds (class Elite) In the spring season and (class A) In the fall season of 2005 to electricity field (0 as control, 550 volt/cm (AC), 1150 volt/cm (DC) and 2300 volt/cm (DC) respectively for 1, 2 and 4 minutes II week before planting in factorial RCBD experiment design, to study the effect of these treatments on potato yield quality. Results showed that high voltage treatments decreased the percent of total soluble sugars significantly in the spring season when high voltage fields was used especially at 1150 volt/cm treatment which it decreased by 16.31 % compared to control treatment, and the different was not significant in fall season. Treating the tuber seeds with 1150 volt/cm increased the tuber firmness by 5.00 and 16.78% compared to control and 550 volt/cm treatments respectively for spring season, while at fall season the control treatment increased it by 9.85% compared to 550 volt/cm treatment. Treating the tuber seeds with 1150 volt/cm increased the protein content by 1.27 and 16.79% compared to control and 1150 volt/cm treatments at spring season, but at fall season the control treatment increased this values by 9.22,5.48 and 7.69% compared to 550, 1150 and 2300 volt/cm treatments respectively. Results also showed that dry matter, starch and specific gravity was increased in tubers from 550 volt/cm by 2.76 , 3.60 and 0.21 % as compared to control treatment and significantly increased by 15.01,20.56 and 1.06% as compared to 1150 volt/cm at spring season, in contrast in the fall season when high voltage fields was used especially at 550 volt/cm treatment decreased these values by 9.06 , t 1.85 and 0.60% compared to control treatment.

الكلمات الدلالية


Article
RESPONSE OF LOCAL ORANGE SAPLING TO IRRIGATION WITH MAGNETIZED WATER AND FOLIAR SPRAYS WITH SOME MINERAL ELEMENTS.
استجابة شتلات البرتقال المحلي للري بالماء الممغنط والرش ببعض العناصر المغذية

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الخلاصة

This study was carried out in the lath house , Department of Horticulturc,Univcrsity of Baghdad, during the growing seasons of 2005-2006 to investigate the effect of using magnetized water in irrigation , foliar sprays of urea , Fe , Zn on the vegetative and roots growth of orange saplings local cultivar budded in sour orange rootstock. The experiment was sctcd up using split plot design. The main plots were represented by magnetized and non magnetized waters , the sub plots were represented by the foliar sprays of urea , Fe , Zh. The saplings were irrigated with magnetized water and non magnetized water and foliar sprays of mineral elements were done at three different times. Irrigation with magnetized water significantly increased plant height, number of branches , stem diameter , length of root , number of root branches at a percentages of 39.30 , 19.70 , 50.00 , 21.47 and 39.31% , respectively, and also increased the total carbohydrates , leaf area , total chlorophyll , dry weight of vegetative parts , and dry weight of rooting system by a ratios of 23.92 , 18.71 , 12.99 , 17.39 , 8.77 % , respectively. Foliar sprays with mineral elements used in this study significantly influenced the vegetative and roots growth specially the foliar sprays with Urea by which a heights increment were happened in vegetative characters except total chlorophyll content and carbohydrate percentage where chlorophyll content was the height (3.60 mg /1) when Fe at (1.0 g /1) while the highest percentage of carbohydrate of 11.67 % were found when Zn at (1.13 g / I) was sprayed. The interaction effect of magnetized water and foliar sprays with urea . Fe and Zn significantly increased most parameter included in this study as compared with those treatments irrigated with non magnetized water and sprayed with the mineral elements used in this study.

الكلمات الدلالية


Article
IFNFLUENCES OF IRRIGATION WITH MAGNETIZED WATER AND FOLIAR FERTILIZATION IN MINERAL CONTENTS OF ORANGE LEAVES.
تأثيرات الري بالماء الممغنط و التسميه الورقي في محتوى اوراق البرتقال المحلي من المعناصر.

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الخلاصة

This study was conducted in the lath house , Department of Horticulture / University of Baghdad , during the growing season of 2005-2006 to investigate the effects of the magnetized water in dissolving and absorption of mineral elements by detecting the contents of those elements in the leaves of one year old orange splings local cultivar budded on sour orange rootstocks.This experiment laid out using a split plot design. The treatments with magnetized and non magnetized water were the main plots while the foliar sprays with urea , Fe and Zn were the sub plots . Irrigation was done using magnetized and non magnetized water . Magnetization of water was carried out by using two Dipolar inagnetizcr connected in series with water pipe. The mineral elements were sprayed at three different times . Trisuperphosphate (20% P) and potassium sulphate (42% K) at one level (25 g/ plant) for all treatments.Irrigation with magnetized water significantly increased the leaves mineral content of orange splings by a ratios of (10.78 , 26.14 , 19.29 % ) for the elements (N+ , P+3, K+ % ) and (6.28 , 10.89 , 17.72 %) for the elements (Fe+2 , Zn+2 , S+2 %) respectively as compared with the control treatment.Foliar spray with nitrogen and second level of Fe ,Zn significantly causes a highest increments of their concentration in the level (13.4 , 34.36 , 69.3 %) respectively , also the foliar sprays significantly increased the P , S , K content in the leaves.The interaction between magnetized water and the spray with nitrogen and the second level of Fe and Zn significantly gave the highest increment in ions concentration of (N+ , P+3, K+3, Fe+2, Zn+2, S+2) in the leaves as compared with the control treatment.

الكلمات الدلالية


Article
‏ INFLUENCE OF SPRAYING WITH MAGNESIUM AND IRRIGATION WITH MAGNETIC WATER ON SOME GROWTH AND FLOWERING PARAMETERS
تاثير الرش بالمغنيسيوم والسقي بالماء الممغنط في بعض صفات نمو و إزهار نبات اللاتيني

المؤلفون: SAMI K. M. AMEEN سامي كريم محمد امين
الصفحات: 84-93
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الخلاصة

This experiment was aimed to investigate the effect of foliar application of Mg42 and magnetic water on growth, flowering and leaf content of some inorganic minerals of Tropaeolwn niajus plants. Magnetized water was compared with untreated water. Factorial experiment according to the Randomized Complete Block Design (RCBD) with three replicates was designed, each replcate consisted of five pots, each pot contained one plant. Results showed that magnetic water increased length of plants sien diameter , chlorophy content and leaf area ( 19.58 cm ,0.58 cm , 320.17 mg /m2 and 1012.07 cm3 ) respectively

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Article
CHARACTERIZATION OF WHEAT GERM LECTIN
توصيف لكتين جنين الحنطة

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الخلاصة

This research was aimed to study the characters of purified Wheat germ lection (Wheat germ agglutinin) which confirmed by electrophoresis. It was shown that the molecular weight was 17800 Dalton as determined by polyacrylamid gel electrophoresis under denaturing conditions and presence of the reducing agent 2-mercaptoethanol. The isoelectric point was found to be 8.7 as determined by Isoelectric focusing which indicating the lection under study is basic protein. No carbohydrate was found in purified lectin using Phenol-Sulfuric acid method so the lection under study differ from other lections in this struactural property because the other ones are glycoprotein. The optimum pH for lection activity was found to have ranged from 6.5-7.0 while agglutinating activity was found to be lost completely at pH lower than 5.5 and more than 8.5 . The lection retained its original activity when incubated at 20-60°C for 15 minutes, while it had retained half of its original activity after incubation for the same time at 70 °C the activity was decreased to lowest level at 80°C that it was lost 93.75 % of its original activity and became completely inactive at 90°C. It found that the lection has not lost any of its activity until six week of storage at -18 °C , but the agglutinating activity was decreased partly of seventh and eighth week of storage under the same condition, as it lost just 50% of the activity . It was found that the activity decline so quickly after the first week at 25 °C and after the second week when held at 4 'C.

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Article
EVALUATING THE EFFICIENCY OF PHYLEX IN THE DEGREDATION OF DIFFERENT CONCENTRATIONS OF AFLA Bl ON STORED MAIZE GRAINS
كفاءة مادة الفايلكس في تحطيم تراكيز مختلفة من سم الأفلاءB1 على حاصل الذرة الصفراء المخزونة

المؤلفون: Halima Z. Hussein حليمة زغير حسين
الصفحات: 104-112
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الخلاصة

This experimant was conducted at the drying and thrushing of maize cob mill. Miucstry of Agriculture, Baghdad and the Mycotoxins Laboratory, Plant protection Dep.. Coll. or Agriculture , Uui. of Baghdad . to evaluate the efficiency of phylex at concentration of 1600 g./ton grain which was diluatcd with 5 liter of water before spraying , compared with dusting 2% urea for controlling AFIa Bl in stored inaizegraiu . Results of the isolation and ideultificetion that the phylex has a asupcrior efficiency to prevent tiic infection with any fungi in to the stored maize grain, While the following fungus : Allernaria alternata, Aspergillus flavus, A. t+iigar, Curvularia spp, Clutlosparium spp, Fiisariuin moiiilifornte, Mucor spp, Penicillium spp, Rliizopus spp., Tricliodenua spp. and many bacteria, which dose not ideutified at maize grain in the control treatment. The highest infection ratio in maize grain was with A.flavus which reached 54 % and 68 % in control treatment at 14 % and 21.6 % relative humidity respectively followed by F. moniliforme at a ratio of 20.85 % and 35.66 % for the same percentage relative humidity respectively . A. nigur , Penicillium. spp. and other fungus were found at less ratio treated maize garins. Spraying Phylex and dusting with 2 % urea significantly reduce the percentage of the contamination with Afia Bl which is studied by HPLC.There was a significant differences between phylex and urea as compared with control . phylex reduced the percentage of contamination With Afia Bl from 20.30 , 60 ppm to (10.05 , 19.29 , 33.02) and (11.65 , 20.58 , 42.86) ppm for both level of relative humidity respectively after one month storage , While urea reduce the same level mean above to (12.38 , 20.83 , 41.98) and (14.63 , 21.17 , 46.19)ppm for both level of relative humidity respectively for the same period .

الكلمات الدلالية


Article
THE COGNITIVE LEVEL OF BROILER HOLDERS IN BAGHDAD OF SCIENTIFIC RECOMMENDATION PERTAINING ITS BREEDING
المستوى المعرفي لمربي فروج اللحم للتوصيات العلمية وعلاقته ببض العوامل في محافظة بغداد

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الخلاصة

The study aimed to identify the level of cognition for broiler breeders' pertaining scientific recommendations related to management, and to identify the relationships between level of cognition level and some selected independent variables. The study covered all (11) agricultural sections in Baghdad govcruoiatc. the total breeders' was(1498). a number of (104) breeders were randomly selected. The data were collected by aqucstionnaire in a ppr«onal interview directed to broiler breeders. The study revealed that about (71%) of the respondents got 3 low degree of cognitive rating between (21-40) degree, and the average was (37.333) degree. The results have proved significant correlation between cognitive level of breeders and extensions services, academic achievement of breeders as well as the study showed non significant correlation between cognitive level and age, number of hall managed, economical level, years of work and specialty. It is recommended that more various extension activities (such as pamphlets, symposium, training courses) should be provided to the broilers. It is also recommended that the General Institution of Agricultural Extension and Cooperation should encourage broiler holders who hold high degree of education and those who pursue agricultural extension programs . This is due to the fact that these factors associated with the broiler holders ' level of knowledge as the study revealed . This docs not mean that the General Institution of Agricultural Extension and Cooperation should neglect the other broiler holders .‏

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Article
DETERMINATION OF THE PERFORMANCE OF LOCAL PAD IN DIRECT EVAPORATIVE COOLING SYSTEM FOR POULTRY HOUSE
تحديد اداء الحشوه المحلية في نظام التبريد التبخيري المباشر لحقل الدوابن

المؤلفون: Ali M. Abdul-Munaim على مازن عبد المنعم
الصفحات: 122-128
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الخلاصة

An experiment was undertaken at Al-Rashidia in Baghdad to investigate the effect of pad thickness with three levels (7, 10, 13 cm) and three averages of water flow (6, 8, 11 L/min) during 21Junc 2007 to 3 September 2007. This was to measure out and indoor dry bulb, dew point temperature, cooling efficiency, relative humidity and temperature-humidity index inside the hall. The aim of the research was to determine the best heat performance for the pad contracted from reed and date palm fibers. A factorial experiment with completely randomized design with three replicates was used. Considerable increase in tin' pad thickness from 7 to 10 and to the 13cm with no change in the rate of water flow led to obvious increase in obvious increase in relative humidity and cooling efficiency while decreased the indoor dry bulb temperature, dew point and temperature - humidity index. An obvious decrease was noticed in indoor dry bulb temperature and temperature -humidity index, while increased the other parameters concomitantly with increase in water flow (from 6fVmin onward).Higher cooling efficiency (88.2%) and lower temperature-humidity index (66.9) were observed as a result of interaction between the third thickness 13cm and the third water flow (11 L /min).A lower (76.9%) cooling efficiency and higher (71.2) temperatures-humidity index were achieved as a result of the interaction between first pad thickness( 7cm )and water flow( 6f/min). The pad thickness 13cm with 11 L /min water flow gave a dry bulb temperature 20.1c°, cooling eflidency88.2%, dew point 15.lc°, relative humidity 76% and THI 66.9. Therefore that combination was recommended, because it was the best during the experiment, as compared with the others.

الكلمات الدلالية

جدول المحتويات السنة: المجلد: العدد: