جدول المحتويات

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: 2005 المجلد: 33 العدد: 2

Article
STABILITY OF RAPESEED (Brassica napus L. ) VARIETIES UNDER RAINFALL CONDITIONS IN NORTHEREN OF IRAQ
أستقرارية اصناف من السلجم (Brassica napus L.) تحت الظروف المطرية في شمال العراق

المؤلفون: Mohammed Y. Hammed محمد يوسف حميد
الصفحات: 2-9
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الخلاصة

Four rapeseed varieties, Paktol, Kebel, Forte and Karat were tested in five environments represented limited and semi-limited dryland area in northern of Iraq, Mosul province (Rashidia during 1999-2000 and 2000-2001, singar during 2000-2001 and Bashiqa site during 2000-2001 and 2001-2002 seasons) in order to determine stability of these varieties for plant height, heading,yield and its components.Significant varietal and environments differences were observed for the traits investigated except no. of seed per pod and 1000 seed weight.GXE interaction effect was highly significant for all traits except 1000 seed weight. Paktol were better adapted to favorite environments for plant height, no. of days to heading and no. of pods per plant and better adapted to a wide of environments and stable for seed yield.

الكلمات الدلالية


Article
STUDY OF VOLUM 'S ECONOMY OF SUGERBEET CROP IN NINEVAH PROVINCE FOR 2001 – 2002 SEASON
دراسة اقتصاديات الحجم لمحصول البنجر السكري في محافظة نينوى للموسم الزراعي 2001/2002

المؤلفون: Adnan Ahmed Thallaj عدنان احمد ثلاج
الصفحات: 4-7
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الخلاصة

Study of this research is to study the economics volume of sugar beet crop in Ninavah province, for agricultural season 2001-2002 depending on the experimental data of season 2001-2002 for a specimen of farmers(25). The function of total expenses was estimate from which the function of median total expenses was derived to calculate the optimal size which can achieve economic efficiency. by estimating total cost function to compute the optimal volume of the production which reached (89.16 tone). This volume which reduced to cost of product, where as the average volume of actual production reached to (69.27 tone) for study sample. It was demonstrated that the majority of sugar beet's achieved (93%) of volume economics.

الكلمات الدلالية


Article
IN VITRO PROPAGATION OF PEAR ROOTSTOCK(Pyrus communis L.)BY TISSUE CULTUR OF SHOOT TIPS
الإكثار الخضري لأصل الكمثرىL. Pyrus communis بالزراعة النسيجية للقمم النامية

المؤلفون: Hana S Assaleh هناء سعيد الصالح
الصفحات: 8-15
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الخلاصة

Propagation of Pyrus communis L. rootstock by tissue culture methods using MS medium with different concentrations of growth regulators was examined. Experiments showed that BA and IBA at concentrations of 10 and 1.0 mg / L alternatively were most effective in vegetative multiplication. Different auxins (IAA , IBA) were added to MS medium with different salt strength. Results showed that addition of IAA at 10 mg / L, to MS medium with ¼ salt strength ,was most effective in root formation.This study showed that by using tissue culture methods and suitable growth regulators it is possible to obtain more than 60.000.000 plants from single segment in a year, these plants could be easily transfer to soil and grown in the field

الكلمات الدلالية


Article
EFFECT OF WATER STRESS , LIQUID PARAFFIN AND NAPHTHALENE ACETIC ACID IN GROWTH , YIELD AND QUALITY OF POTATO (Solanum tuberosum L . )
تأثير الشد المائي وشمع البارافين السائل ونفثالين حامض الخليك في النمو والحاصل والنوعية في البطاطا (Solanum tuberosum L . )

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الخلاصة

A field experiment was conducted during two spring seasons of 2002 and 2003, to study the possibility of decreasing water stress decay and improved growth , yield and quality of potato plants cv. Desiree by using liquid paraffin as antitranspirant and Naphthalen acetic acid as growth regulator. Plants were exposured to water stress twice by no water supply till plant wilting during tubers formation period 51 and 82 days after planting date. Liquid paraffin at two concentration ( 0 and 2 % ) were applied twice after 53 and 84 days of planting ,and naphthalene acetic acid at two concentration ( 0, and 40 mg / L. ) were applied twice after 48 and 78 days of planting .The study included 8 treatments laid out in factorial experiment within split–plot design replicated three times .The results can be summarized as follows : Exposuring potato plants to water stress caused a significant decreases in total water content (TWC) in leaves , leaf area , dry weight of plant , tuber number per plant , tuber weight , and plant and marketable yield .However ; a significant increases was observed in dry matter percentage , total soluble solids (TSS) and percentage of loss and decayed tubers after storage .Foliar application of liquid paraffin at 2 % significantly increased the TWC and total chlorophyll content in leaves , tubers number , tuber weight , plant and marketable yield . Foliar application of NAA by 40 mg./ L. significantly increased the marketable yield and the total soluble solids percentage in tubers. The interaction treatments between liquid paraffin and NAA , significantly decreased the damage effect of water stress on stressed plants and improved growth and yield of unstressed plants , however the spraying of liquid paraffin and NAA decreased the differences between water stressed and non-water stressed plants in many growth and yield characters .

الكلمات الدلالية


Article
EFFECT OF THE SOILTEXTURE AND TOTAL CARBONATE IN SOIL CONSISTENCY FOR SOME LOCATIONS IN NINAVAH
تأثير النسجة والكاربونات الكلية في لدانة التربة لبعض المواقع في محافظة نينوى

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الخلاصة

Five soil samples collected from different locations in Nineva province with different texture and total carbonate content (126-237 gm/ Kg) . Each soil sample was divided in to two parts the first one was kept on its natural condition however the total carbonate was removed from the second one .The studied upper and lower limits and classification of soil according to casagrande (1948). Indicated that the results both liquid and plastic limits increased as clay content increased . and removed of total carbonate showed that liquid and plastic limits are increased compared with natural soil samples . Medium plasticity group according to casagrande are classified .the result showed that all the soil belonged to inactive clays .

الكلمات الدلالية


Article
RELATIONSHIP BETWEEN LIVE BODY WEIGHT AND BODY DIMENSIONS IN KARADI CALVES
العلاقة بين متوسطات الوزن الحي وابعاد الجسم في عجول الكرادي

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الخلاصة

This study was conducted at department of Animal Resources at College of Agriculture and Forestry to study the correlation between body weight and different body dimensions during different fattening periods (every 4 weeks) for (140) days. The results showed highly significant (P < 0.01) effect of fattening periods on heart girth , body length., and the fore and rear thickness and significant (P < 0.05) in fore and rear deepness, while there was no significant effect on fore and rear highness. The average final body weight and the different body measurements were (249.13 kg) and (146.50, 127.63, 110.25, 114.25, 53.75, 46,50, 31.88 and 34.88 cm) for the heart girth, body length, fore and rear height, fore and rear deepness and fore and rear thickness respectively. Correlation coefficient between body weight and body measurements were highly significant (P < 0.01). stepwise regression for prediction about increasing body weight gain at the end of the experiment could be done thrue the known values of heart girth, rear highness, fore deepness and rear thickness.

الكلمات الدلالية


Article
NONENZYMATIC BROWNING DEVELOPMENT OF CONCENTRATED LEMON JUICE BY USING MODEL SYSTEMS DURING STORAGE
تطور الاسمرار غير الأنزيمي لعصير الليمون الحامض المركز باستخدام النمذجة خلال الخزن

المؤلفون: M.M.Al Zubaidy مازن محمد إبراهيم الزبيدي
الصفحات: 37-41
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الخلاصة

Synthetic model systems of concentrated lemon juice (50%) were prepared with different contents of some compounds (Ascorbic acid ,Reducing Sugar , Amino acids) that may play an important role in brown pigments ( Melanoidins )formation. Samples were stored at 25 and 35ْ c for 12 weeks .Results showed that the main brown pigments formation pathway in this highly acidic synthetic model system (pH >2.5) was ascorbic acid degradation rather than reducing sugar acid decomposition and strecker decomposition of amino acid.

الكلمات الدلالية


Article
XANTHAN PRODUCTIONBY THE WILD TYPE BACTERIA Xanthomonas campestris AND STUDY OF PRODUCTION CONDITIONS
إنتاج سكر الزانثان من عزلات برية لبكتريا Xanthomonas campestris ودراسة الظروف المثلى لإنتاجه

المؤلفون: A. O. Kocha عبد الجبار عمر قوجة
الصفحات: 42-55
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الخلاصة

The aim of this study was the isolation and identification of Xanthomonas campestris form the leaves, flowers, and roots of califlower, as well as from the soil grown in it. The effect of medium components as well as the effect of incubation temperature, pH, period of incubation and agitation velocity to determine the optimum conditions for xanthan production were studied. Four isolates among 20 showed ability of xanthan production in the range from 7 to 9.4 g xanthan / l of liquid Luria-bertani medium (LBG) medium containing 2.5% glucose, 0.5% yeast extract, with pH of 7.0 using shaker water bath at 200 rpm and incubation time of 78 hr at a temperature of 28 C. Xanthan produced contained 1.25 – 1.4 % pyruvate with high ability to form firm rubbery gel with locust bean gum.

الكلمات الدلالية


Article
UTILIZATION OF CORN COBS IN THE MANUFACTURING OF PARTICLEBOARDS
استغلال مخلفات الـذرة ( الكوالح ) فـي تصنيـع الألـواح الحبيبيــة

المؤلفون: Basim A. Abd Ali باسم عباس عبد علي
الصفحات: 56-61
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الخلاصة

The research has conducted to investigate the possibility of corn cobs utilization in particleboards production . Forty two boards were manufactured within two experiments . At the first one 18 boards produced to test the effect of two factors ; particle size ( 3 levels ) , and resin content ( 2 levels ) on the board properties . The results of this experiment affirmed the superiority of the smallest size of particles . The second one dealt with the influence of three factors ; board layering , resin content , and board density . Half of 24 boards of this stage were manufactured by using wood particles as board surfaces to the corn cobs core . Testing results showed that 3 – layer board were more better than single layer one in all of mechanical and physical properties . This difference was at its higher level in case of high density boards. In spite of the significant improvement occurred with increasing resin content from 6% to 8% the first one seemed to be sufficient especially with 3 layers high density boards. Hence, the introducing of wood in a 3 : 7 ratio with corn cobs resulted in a very high improvement that should not neglected when trying in the utilization of this raw material.

الكلمات الدلالية


Article
THE INFLUENCE DATE AND LEVEL OF CUTTING ON GROWTH OF
تاثير اختلاف الفترة الزمنية وارتفاع القطع في نمو نبات الحليان (السفرندة )

المؤلفون: A . M . Sultan احمد محمد سلطان
الصفحات: 62-66
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الخلاصة

The experiment was carried out at Albosife ( Near Mosul city ) in 2003 growing season to determine the influnce of time , level of cutting and their interaction on growth of Johnson grass . Date were subjected to the conventional analysis randomized complete block design ( R ، C ، B ، D)as a factorial experiment with three replicates . The result showed that the cutting plant at 5 or 10 cm above the soil had markedly depressed the dry weight of plant and rhizomes if it compared with out cutting treatment . Also the frequent cutting at every 10 days was more effect on plant growth than 20 or 30 days if it used as a method for it control . It reduced the length of rhizome up to 98.6 , 78.8 and 55.6 % respectively and 98.2 , 77.8 and 50.6 % for number of buds on rhizome . On other hand the same treatment ( cutting every 10 days ) had excellent in decrease in D . W . of plant growth and rhizomes which reduced up to 96 , 94.3 , 84.9 % for D . W . of plant growth and 99.7 , 91.9 68.2 % for D . W . of rhizomes . The best result interaction between two factors was the frequent time of cutting of every 10 days which cutting near the soil surface .

الكلمات الدلالية


Article
THE EFFECIENCY OF SOME SYSTEMIC HERBICIDES ON JOHNSON GRASS (Sorghum halepense(L.) pres CONTROL
كفاءة بعض المبيدات الجهازية في مكافحة دغل الحليان ( السفرندة )

المؤلفون: A . M .Sultan أحمد محمد سلطان
الصفحات: 67-71
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الخلاصة

The experiment was carried out at College of Agriculture and forestry , Mosul Univ. at Hammam Al-Alil in 2003 growing season to determine the effeicency of six systemic herbicides with three levels of concentration for control Sorghum halepense(L) . Data was subjected to the conventional analysis of randomized complete block design (R،C,B,D)as a sample experiment with three replicates .Results indicated that glyphosate (232ml a.i / ha) , Focus altra (150 ml a.i./ha) and Fuselate (33 ml a.i ./ha ) had completely control S . halepenses , while others herbicides such as Topic , Illoxan and super galant had less effected .These three herbicides had more effect on rhizom dry weight than on shoot of plant which reduce 76.6 % for Topic , 46.6 % for Illoxane and 66.6 % for super galent if it compered with the check treatment ( no herbicide).

الكلمات الدلالية


Article
GENETIC ANALYSIS OF THIRD FILIAL GENERATION
التحليل الوراثي للجيل الثالث في الشعير سداسي الصفوف

المؤلفون: N.K. Yousif نجيب قاقوس يوسف
الصفحات: 72-78
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الخلاصة

Three generations (P1 , P2 , and F3) of four crosses in a six – row barley (Jazera – 1 X Badia , Tadmer X Arivate , Rehan X Benedict and Forest X Baraka) were used to estimate average degree of dominance , habitability , and expected genetic advance from selections for the following quantitative characters : maturity time , plant height , grain yield and it’s components. The results indicated that direct selection will be effective in the third filial generation to improve plant height , grain yield and number of grains per spike in the all crosses. Recurrent selection or selection in the forth generation will be suggested to increase the desirable alleles for the other traits.

الكلمات الدلالية


Article
REHABILITATION OF DEGRADED RANGELAND IN NORTHERN IRAQ
انعاش المراعي الطبيعية المتدهورة في شمال العراق

المؤلفون: K.K. Kasim قاسم خليل قاسم
الصفحات: 79-84
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الخلاصة

This study was conducted at Mahalabia region in Ninevah province in Northern Iraq 45 km south west of Mosul city for the three successive seasons 99/2000, 2000/2001 and 2001/2002. The amount of the rainfall is less than 300 mm. This study included two field experiments. First, conducted on rangeland shallow highly gypsum soil (24% gypsum). The two sites were represented the rangeland in the cereal wheat belt area. In the first site, three treatments were established, first treatment was control represents (natural vegetation) and the two others were cultivated with vetch (Vicia sativa L. Var. IPA 2001) with and without triple superphosphate fertilizer 160 kg/ha. The second experiment was conducted on plate an shallow clay soil (52% clay). Also, three treatments were set up. First, was control represents (natural vegetation) and the two others were cultivated with annual medics (Medicago polymorpha Var. circle valley) with and without triple superphosphate fertilizer 160 kg/ha. The results revealed, that add phosphate reduced the phosphorus deficiency in the soil and lead to increase dry matter production for vetch and annual medics. Also, there was increase in the pod and seed yields, weight of 100 pods and 1000 seed of annual medics. On the contrary, phosphorus had no effect on the number of seeds/pod. There were significant differences in dry matter production between treatment cultivated by vetch and annual medics with and without phosphorus fertilizer in comparison with control treatment. Successful rehabilitation of degraded rangeland lead to increase the stability of animal wealth in the area and stop animal moving from place to another looking for natural vegetation for their feeding.

الكلمات الدلالية


Article
THE STUDY OF PERFORMANCE OF SOME POTATO LIFTING EQUIPMENT IN PICK-UP PEANUT CROP
دراسة أداء بعض آلات قلع البطاطا في قلع محصول فستق الحقل

المؤلفون: Aziz R. Al-Banna عزيز رمو البنا
الصفحات: 85-87
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الخلاصة

This research aimed to study some of the technical indications including the use of three kinds of potato diggers (Japanese plow, Chain and spindle type) under loamy clay soil conditions and depth about 15cm and four traveling speeds (1.71, 2.27, 2.56 and 3.41)km/hr. The results were analyzed statistically using the RCBD with split plot design with three replications. The main results of this study were follows: The local equipment (Japanese plow) showed significant effect on the studied properties when registered high weight of total pods, big size pods and undamaged pods with small weight of broken, search and unlifting pods. The travelling speeds of machines used showed no significant effect on studied properties.

الكلمات الدلالية


Article
INTEGRATED CONTROL OF FUSARIL WILT OF PLATANUS SEEDLING
المقاومة المتكاملة للذبول الفيوزاريومي المسبب لموت شتلات الجنار

المؤلفون: Ali K.M.Al-Taae علي كريم محمد الطائي
الصفحات: 89-95
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الخلاصة

The study showed that the tow fungside Atmi and Benlate caused growth inhibition 100% on medium of the fungus Fusarium oxysporum which caused wilt of platanussp. Seedling, The best treatment was using Benlate , fungal&Bacterial biological control which decrease the infection percentage to 30% compared with 100% when no control measure was used , followed by other treatment .Using the two fungside Atmi , Benlate alone or mixed with fungal& Bacterial biological control did not showed significant differences in the number of leaves , The fungal biological control was better than Bacterial biological control and the mean number of leaves was 25.33.It was showed that the fungus affect significantly on some characterizes of plant

الكلمات الدلالية


Article
EFFECT OF Fusarium solani, Rhizobium leguminosarum, BENOMYL AND NITROGEN FERTILIZATION ON CERTAIN CHARACTERS OF LENTIL
تأثير Fusarium solani و Rhizobium legminosarum وبينوميل والتسميد النيتروجيني

المؤلفون: J. M. Ahmed جاسم محمد أحمد
الصفحات: 96-106
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الخلاصة

The effect of seed inoculation with Rhizobium leguminosarum, Biavar viciae, seed treatment with benomyl, nitrogen fertilization and Fusarium solani (Mart.)Synder et Hansen on three lentil (Lens culinaris medic) cultivars were studied. In the presence of mixed inoculum (3 isolates) of the pathogen, the lentil cultivar IPA-98 was more resistant than IPA-2000 and Barka. It was superior into response to inoculation with a mixture of three races of R. leguminosarum and nitrogen fertilization in addition to into high production. Nitrogen fertilization decreased severity and improved plant growth, including production of three lentil cultivars, lentil yield and number of root nodules were increased when seeds were inoculated with R. leguminosarum. Yield increase and improvement of studied characters were recorded in the treatment which involved nitrogen fertilization, seed dusting with benomyl and inoculation with Rhizobium bacteria. This study constitutes the first of its kind, in which the effect of these factors on three cultivars was recorded in Iraq.

الكلمات الدلالية


Article
BIOLOGICAL AND CHEMICAL CONTROL OF DAMPING OFF AND ROOT ROT OF TOMATO CAUSED BY Fusarium solani WITH Pseudomonas aeruginosa AND THE FUNGICIDE BENLATED
المكافحة الاحيائية والكيميائية للفطر Fusarium solani المسبب لموت بادرات وتعفن جذور

المؤلفون: Bassam Yahya Ibraheem بسام يحيى إبراهيم
الصفحات: 107-114
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الخلاصة

The present study revealed that the use of Pseudomonas aeruginosa and the fungicide Benlate greatly suppressed Fusarium damping off and root rot of Tomato caused by Fusarium solani,Benlat showed high level of antagonism against F. solani and that caused significant reduce in mycelium growth 100% and spores germination 49.53% in laboratory . It was also showed that Benlate has no toxic effect to Ps. aeruginosa while it caused effective suppression to F.,solani where the percentage of mycelium growth inhibition was 100% at 150 mg/L active ingredient of Benlate ,The interaction between Ps. aeruginosa and Benlate caused high suppression to Tomato seedling infection with F.solani in addition to significant increase in plants growth features.

الكلمات الدلالية


Article
PATOGINICTYAND PJYTOTOXITY OF HENDERSONULA TORULOIDEA NATTRAS ON CITRUS TREES
سمية وإمراضية الفطر Hendersonula toruloidea Nattras على أشجار الحمضيات

المؤلفون: Bassam Yahya Ibraheem بسام يحيى إبراهيم
الصفحات: 115-121
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الخلاصة

Isolation from orange trees infected with branch wilt showed the presences of Hendersonula toruloidea Nattras as potential pathogen , Seven fungicides were used in vitro in the following concentration 50,100,150mg/L Al the fungicides caused significant inhibition growth of mycelium .According to bioassay technique of H.toruoloidea culture filtrate which includes young shoot cutting and shortage in calculate water leakage. It was clear that culture filtrate caused shoot cutting wilt after one and totally dried after three days and this culture filtrate also caused water leakage in orange shoot cutting .Host range of H.toruoloidea include the following citrus species Lemon(C.limon)limetta (C.limetta)SourOrange (C.sinensis),Grapefrute(C.paradisi)&Mandarin (C.deliciose).

الكلمات الدلالية


Article
FOOD PREFERENCE OF Microcerotermes diversus Silv. (ISOPTERA, TERMITIDAE) TO THE WOODS OF SOME FOREST TREES*
التفضيل الغذائي لحشرة الأرضة لأخشاب بعض أنواع أشجار الغابات

المؤلفون: Nazar M. Al-Mallah نزار مصطفى الملاح
الصفحات: 122-129
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الخلاصة

The result of feeding preference study of the termite Microcerotermes diversus Silv to the different species of wood tested ( Platanus orientals , Populus nigra , Cupresses sempervirens , Salix acmophylla ,, Pinus brutia and Eccalyptus camaledulensis ). Under both artificial and natural infection conditions. The insect preferred the wood of Platanus, Salix and Populus trees; the general mean of weight loss for wood during the period of experiment were: 65.95, 55.77, 26.35 and 37.85, 23.16, 37.74 gr. respectively, on the other hands Pinus and Cupressus wood showed loss preferred by the termite and gave 2.42, 2.89 gr. For natural infection and 4.95, 6.11 gr. for artificial infection respectively. The results obtained from study for wood preference and the free choice method emphasized the previous results.

الكلمات الدلالية


Article
THE ROLE OF YELLOW STICKING TRAPS FOR ESTIMATION OF LEAF HOPPER Empoasca decedens POALI ON DIFFERENT STRAINS OF POPLAR TREES IN MOSUL
دور المصائد اللاصقة الصفراء في تقدير الكثافة العددية لحشرة قفاز الأوراقEmpoasca decedens P. على عدد من سلالات أشجار الحور الأمريكي في منطقة الموصل

المؤلفون: M.A.Mohammed محمد عبد الكريم محمد
الصفحات: 130-135
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الخلاصة

The study was conducted in the plantation of poplar research station of horticulture & forestry in Rashidia – Mosul in 2002 , it was noticed that the presence of leaf hopper on poplar trees from the beginning of May up to the end of December .The results showed that the population density of the insect which attracted to yellow sticky trip reached maximum number in October on the strains under study, the strain populus deltoides 618 was more sensitive than other s P.d. 470,P.d. 479 & R-110 and its general means were 279.56, 255.02 , 205.6 & 144.28 insects respectfully . The statistical analysis showed significant differences between strains, date of sampling and monthly populations , in addition there were non significant positive correlation between insects numbers of strain with the weekly temperature (-0.06112) , and also non significant negative correlation with the weekly relative humidity (-0.25398) .For the monthly numbers ,the correlation was negative and non significant with temperature (-0.08191) ,but it was positive and significant with the relative humidity(0.57001)

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