Table of content

The Iraqi Journal of Agricultural Science

مجلة العلوم الزراعية العراقية

ISSN: ISSN:00750530 / EISSN:24100862
Publisher: Baghdad University
Faculty: Agriculture
Language: Arabic and English

This journal is Open Access

About

The Iraqi Journal of Agricultural science (TIJAS) was established in 1966 in the college of Agriculture – University of Baghdad. It was published with two issues each volume. In 2000, TIJAS started with six issues each volume till now . In this year the volume number of TIJAS is (47). TIJAS covers papers in plant & animal sciences, besides, Agricultural Economics, Agricultural Extension, Agricultural Mechanization and basic sciences, such as Chemistry and Physics Related to light, heat, water and winds. Each volume includes around 75 articles, about 20-25 article/ issue depending on a reliable accepted paper for publication.

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Contact info

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

Table of content: 2012 volume:43 issue:3

Article
THE USE OF FEED BLOCKS BY SHEEP HOLDERS AND ITS CORRELATION WITH SOME STUDIED FACTORS – CASE STUDY IN ABU – GHRAIB REGION -
استخدام مربي الاغنام للبلوكات العلفية وعلاقته ببعض العوامل - دراسة حالة في قضاء ابي غريب -

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Abstract

استهدف البحث الحالي التعرف على مستوى استخدام البلوكات العلفية من قبل مربي الاغنام وتحديد العلاقة الارتباطية بين مستوى استخدام البلوكات العلفية للمربين وكل من العوامل المستقلة الاتية : عدد القطيع ، خبرة المربي في هذا المجال ، مصادر الحصول على العلف ، مصادر الحصول على المعلومات والدخل . وكذلك تحديد مستوى استفادة المربين المستخدمين للمكعبات العلفية في تغذية الاغنام . شمل مجتمع البحث منطقة ابي غريب وشمل البحث المربين المستخدمين للبلوكات العلفية والبالغ عددهم 100 مربيا . اختيرت عينة عشوائية تناسبية منهم بمقدار 60% وبذلك اصبحت عينة البحث 60 مربيا . لقياس استخدام المربين للبلوكات العلفية استخدم مقياس رباعي مكون من اربعة مستويات هي كبير ومتوسط وقليل ولا يوجد . اذ تكون المقياس من 24 فقرة وزعت على المجالات وقت تقديم الاعلاف ومكونات نسجة العلف وتصنيع البلوكات العلفية وطرائق تقديم البلوكات العلفية . جمعت البيانات في الفترة من 112010 الى 2822010 بوساطة استبانة اعدت لهذا الغرض . اظهرت النتائج ان اعلى درجة لمستوى الاستخدام 40 درجة واقل درجة هي 2 درجة وبمتوسط حسابي مقداره 18 درجة . خلصت نتائج البحث الى ان 42% من المبحوثين يستخدمون البلوكات العلفية بشكل قليل وان ثلث المبحوثين يستفيدون فقط من هذه التقانة . كانت هناك علاقة ارتباط موجبة بين مستوى استخدام البلوكات العلفية للمبحوثين وبعض العوامل المستقلة ذات العلاقة . توصى نتائج البحث بضرورة تكثيف الانشطة الارشادية في مجال استخدام تقانة البلوكات العلفية لما لها من تاثير في انتاجية الاغنام فضلا عن ان هذا البحث يعطي مؤشرا واضحا لدراسة مستقبلية اخرى في مجال استخدام هذه التقانة .

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Article
THE DESIRE OF THE RURAL YOUTH TO BENEFIT FROM THE COMPUTER US A MEAN FOR GETTING THE AGRICULTURAL INFORMATION IN AL- HAFRIAH REGION
رغبة النشء الريفي باستخدام الحاسوب للحصول على المعلومات الزراعية في منطقة الحفرية

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Abstract

The research aimed to determe the desire of the rural youth to benefit from the computer us a mean for getting the agricultural information and to determe some aspects which related to using computer as follow:( possession the computer ,proficiency using computer ,availibilty of computer and region ,presence contact line with net work in the region ,the desire to benefit from computer us a mean for getting the agricultural information ,possession the adeqnate experience to use the computer in the internets field, the need to subscribe in training courses in computers field ) ,and the desire was measured according to a quad standard ,desire with high, desire with middle , desire with little , not desire limtted the weight3,2,1,0,. The validity and realiablity of the standard of the question of the rural youth were done in AL – EZAA farm in WASIT governorate which was out off researchs sample .The data was collected by aquestioner ,and personal hnterview with the rural youth Also the research aimed to determe the relationship between the desire of the rural youth and each of the variables ,(age ,level of education economic situation ,external opening ) . The population of the research included all the rural youth in al hafriah region district in a total of 150 rural youth , then a random sample of 40% was taken to get total of 60 rural youth .The results of the research showed that the desire of the rural youth to benefit from the computer is high ,and the results showed also that the most of the rural youth have a weakness in the proficiency and adequate experience to use the computer ,and they have a big need to subscribe in training courses to development their skills in computers field . The results showed also that was a significant relationship between the desire of the rural youth with age and level education and there was no relataionship with the economic situation and external opening. The research recommended to a vailabilty of data base in every agricultural fields to help the rural youth to get any agricultural information when they use the computer , and go to establish training courses in the computer field , and support the rural youth by availabity the computers with appropriate prices , and also by avaialbity of network in the agricultural sectors so that they can get a contact line appropriate prices

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Article
TRAINING NEEDS FOR AGRICULTURAL EXTENSION OF WORK IN THE PREPARATION OF THE EXTENSION AGENTS PLAN AFIELD STUDY IN THE CENTRAL REGION OF IRAQ
الحاجات التدريبية للمرشدين الزراعيين في اعداد خطة العمل الإرشادي دراسة ميدانية في محافظات المنطقة الوسطى من العراق

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Abstract

استهدف البحث تحديد الحاجات التدريبية للمرشدين الزراعيين بشكل عام في مجال اعداد خطة العمل الارشادي والحاجات التدريبية بكل محور من محاور الخطة. تحقيقا لاهداف البحث اعد مقياس لتقدير الحاجة التدريبية في ضوء الادبيات واراء وموافقة الخبراء المتخصصين والمتكون من 25 فقرة توزعت على 5 محاورهي: المعرفة بانواع خطة العمل الارشادي وفق تصنيفها زمنيا، ومصادر اعداد خطة العمل الارشادي، معرفة المرشد بكيفية اعداد خطة العمل الارشادي،التهيئة او الاستعداد لتنفيذ خطة العمل الارشادي، تقويم الخطة. جمعت البيانات في شهري شباط واذار/ 2010 بوساطة استبانة وبطريقة المقابلة الشخصية من عينة عشوائية تناسبية من المرشدين الزراعيين بنسبة 70% وبواقع 114 مرشد زراعي موزعين على 6 محافظات هي( بابل، واسط، كربلاء، النجف، الانبار، ديالى). أظهرت النتائج بان الحاجة التدريبية للمرشدين الزراعيين في مجال اعداد لخطة العمل الارشادي كانت كبيرة. كما ان اولويات الحاجات التدريبية للمرشدين الزراعيين كانت في محور "المعرفة بانواع خطة العمل الارشادي وفق تصنيفها زمنيا " اذ احتلت المرتبة الاولى من حيث حاجة المبحوثين للتدريب فيها، بينما احتل محور " المعرفة في كيفية اعداد خطة العمل الارشادي" المرتبة الاخيرة من حيث درجة الحاجة للمبحوثين. اوصى البحث بالاهتمام بتأهيل واعداد مرشدين زراعيين في مجال اعداد خطة العمل الارشادي والعمل على تلبية حاجتهم في هذا المجال من خلال اعداد وتنفيذ برامج تدريبية متخصصة تعنى بمسؤولياتها وزارة الزراعة والهيئة العامة للارشاد والتعاون الزراعي بالتنسيق مع الجامعات.

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Article
CORRELATION IN SAFFLOWER TO DETERMINE SELECTION CRITERIA
علاقات ارتباط الحاصل في العصفر لتحديد معيار انتخاب

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To detect the traits that correlate to yield to rely on them as selection criteria for high yield in safflower ; seeds of maise cultivar planted in Fields of Crops Sci. Dept. – College of Agriculture – Univ. of Baghdad during2007. Samples data were recorded for traits: Yield, Seeds weight, No. of seeds/plant, no. of full capsules /plant, No. of seeds /capsules, no. of branches, Height of first branch, and root weight. Main sample splited to three samples according to yield value. Data recorded for these three groups for above traits. Data were analyzed, and correlation coefficient and R2 were estimated. Results of statistical analysis show that correlation coefficients values for main sample differ from that of three subsamples, and between yield and the traits of other groups and within groups. The trait; no. of seeds per plant was significant correlated and affected the yield also no. of full capsules by positive and highly significant 0.96 and 0.63 with yield and contributed 92% and 39% in variance of yield . In high yield group, the no. of seeds/ plant contributed in yield variance by 79% for its positive and highly significant correlation 0.89 with yield, and no. of full capsules which contributed in variance of yield 23% for its positive and highly significant correlation 0.48 with yield. The correlation in moderate yield group, the yield correlated with no. of seeds/plant 0.54 and no. of seeds / capsules 0.30 which contributed in variance of yield 29% and 9%. Group three , the trait that reduced the yield were height of first branch and root weight. The traits were posses direct effect in yield no. of seed per plant and height of first branch . We can conclude: 1) when the sample size was large the correlation become more obvious. 2) The more correlated trait with high yield beside no. of seeds/ plant and no. of full capsules was height of first branch. Hence we can rely these traits as selection criteria in

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Article
EFFECT OF TILLAGE WITH CHISEL PLOW ON SOIL MEAN WEIGHT DIAMETER AND POROSITY
تأثير الحراثة بالمحراث الحفار في معدل القطر الموزون والمسامية للتربة

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An experiment was conducted to evaluate the effect of speed, depth of tillage and removing the standard weights from the New Holland TD80 tractor on mean weight diameter and the total percent of soil porosity. The experiment was carried out in silty clay loam soil on a farm of College of Agric. / Baghdad University in 2010. Three levels of speed included 3.21, 5.37, 7.04 km/h which represented the main plots ,two levels of weights included standard weights and removing standard weights which represented the sub plots, and three levels of depth included 10, 15 and 20cm which represented the sub – sub plots were used in this experiment . The experiment was designed according to a split-split plot arrangement in a randomized complete block design with three replications. The results showed that increasing tillage speed for the machinery unit from 3.21 to 5.37 and to 7.04 km/h caused significant decrease in mean weight diameter and soil porosity with decrease ratio 4.26%, 2.30% for mean weight diameter and 2.7%, 1.7% for soil porosity. The addition of weights caused a significant decrease in mean weight diameter and porosity with decrease ratio 2.39% and 1.76% respectively. The results also showed that Increasing tillage depth from 10 to 15 and to 20 cm caused a significant increase in mean weight diameter with increase ratio 7.37% , 7.86% , and significant decrease in soil porosity with decrease ratio 4.34%, 5.42% . the conclusion for this research showed that the Increasing tillage speed for the machinery unit (chisel plow and New Holland TD80 tractor) and weights addition to the tractor rear wheel caused significant decrease in mean weight diameter and soil porosity.

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Article
The Iraqi Journal of Agricultural Sciences 43 (3) : 42-51, (2012) Al-Azawi EFFECT OF KIND AND CONCENTRATION OF SALTS AND ORGANIC MATTER ON ELECTRICAL CONDUCTIVITY AND SOIL REACTION UNDER LEACHING CONDITIONS
تأثير نوعية وتركيز الاملاح والمادة العضوية في قيم الايصالية الكهربائية ودرجة التفاعل للتربة تحت ظروف الغسل

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A laboratory experiment was conducted to reveal the effect of kind and concentration of salts and organic matter on electrical conductivity (EC)and soil reaction (pH) values in a calcareous silty clay texture soil from Abu Ghraib area. Soil was treated with three kinds of salts (sodium chloride NaCl , calcium chloride CaCl2 , and mixed salt of 1 : 1 NaCl : CaCl2) , in three EC values 10 , 20 , 30 dS.m-1, organic matter (petmose) was added in two levels 0 , 2. 5% . Soil was packed in polyethylene columns of 40 cm height and 10 cm diameter. Soil moisture was about 33 k. Pa. then leaching process of soil columns was conducted for five successive times using tap water of 10 cm head (785 ml per each leaching). Liquates were collected after each leaching . Columns were cut at 0-8 , 9-16 and 17-24 cm to represent layers A, B, and C . Soil samples were taken from soil layers to conduct the appropriates analysis .Results showed a significant increase in EC values of soil when salts added to it. NaCl treatment was superior followed by the mixed salts than the CaCl2. Values were positively increased with increasing salts levels added to soil. A nonsignificant decrease was also occurred in soil reaction values before leaching started. Organic matter contributed in increasing values of EC in soil with no significant decrease in soil reaction values for all treatments.Leaching process led to a significant decrease in EC values of soil for NaCl , mixed salt and CaCl2 treatments while there was a non significant decrease in soil reaction values . Leaching process also led to remove the largest quantity of salts from A , B, then C layers , and also led to a non significant decrease of EC values of soil liquates gathered for C3 , C4 levels. Added organic matter led to increase the drop in EC values and soil reaction after each leaching process , there was also a negative relationship between EC and pH values.

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Article
ARTIFICIAL SEED PRODUCTION BY ENCAPSULATING SOMATIC EMBRYOS AND SHOOT TIPS OF TWO TOMATO HYBRIDS
إنتاج البذور الصناعية باستخدام الاجنة الجسمية والقمم النامية لهجينين من الطماطة خارج الجسم الحي

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Astudy was conducted at the tissue culture lab.College of Agriculture/University of Baghdad and Genetic Propagation Department and Biotechnology Department /Life Science College /Poznan University / Poland ,From January 2008 till April 2010,in order to produce synthetic seeds from somatic embryos and shoot tips and the effect of storage on percentage of seed conversion.With regard to the encapsulating somatic embryos and shoot tips,the results showed that the interaction of 2% SA (Sodium Alginate) and 12 mg/l CaCl2 gave the highest percentage of seed conversion (40%) for Choorouk,and the interaction of 2% SA with 8mg/l CaCl2 for shoot tips and the interaction of 2% SA with 12mg/l CaCl2 for somatic embryos and shoot tips,resulted in higher percentage of conversion rate,it was 40%.While this percentage increased to 90% when the encapsulating matrix supplied with 0.5mg/l BA (Benzyl adenine) and 0.05mg/l IBA (Indole butyric acid) for both hybrids. Conversion of encapsulated somatic embryos and shoot tips using alginate coating for both hybrids reached 90% following 14 days at 4c̊ and control treatment of storage A according to results of this study it can be concluded that to increase the percentage of seed conversion synthetic seed matrix should be enriched with plant growth regulators for both tomato hybrids .It is recommended to carry out further research and evaluation to test the encapsulation of nodes and epicotyls to examine the physiological roles of plant growth regulators such as GA3 and ABA supplied to synthetic seed matrix .

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Article
DISPERSAL CAPABILITY OF THE EGG PARASITOID TRICHOGRAMMA PRINCIPIUM ON TOMATO IN PLASTIC HOUSE AND ITS PARASITISM EFFICIENCY ON THE COTTON LEAFWORM EGGS
قابلية انتشار متطفل البيض TRICHOGRAMMA PRINCIPIUM على نباتات الطماطة في البيت البلاستيكي وكفاءته في التطفل على بيض دودة ورق القطن*

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Results of field experiments which carried out at the College of Agriculture/ University of Baghdad, Abu Ghraib revealed, that movement activity of parasitoid Trichogramma principium gradually decreased. The peak of parasitoid activity was on the fourth day after release in the plastic house cultivated with tomatoes. Mean of captured individuals at the distance of 7 m. for all days attained 4.048 individuals/ trap, followed by 9 m. with mean of 2,238 individuals/ trap. The mean of captured individuals attained 5.667 individuals/ trap at 7 m from release point, which was superior on the rest distances. Mean of captured individuals for colours, at the high of 50 and 100 cm from soil surface, was gradually increased until reached the peak at the 5th day. Colour traps that attract parasitoids can be arranged increasingly as yellow, blue, white and green. Results showed that the number of cotton leafworm larvae per plant in release treatment was 0.39 larvae/ plant, which was significantly depressed on that of non-release treatment (2.76 larvae/ plant). The number of egg masses which attained 0.11, 0.04 masses/ plant for control and treatment respectively, results showed no significantly deference between them. High parasitism percentage on live eggs of cotton leafworm attained 54.68% at 2 m from release point, this result significantly exceeded on distances of 4, 6, 8 and 10 m.

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Article
IDENTIFYING ANASTOMOSIS GROUPS AND VIRULENCE OF THE ISOLATES OF R. SOLANI ON POTATO.
تشخيص مجاميع الاندماج السايتوبلازمي وضراوة عزلات الفطر R. solani على البطاطا.

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The study includes a survey of potato stem canker in fields of Baghdad and Babylon province , identification of its pathogen and determination of anastamosis groups for the fungal isolates and control the disease by using some biological agents and chemical compounds induce resistance. Results of the field survey which was carried out in the potato fields of Baghdad and Babylon governorates showed the existence of the disease in percentage of disease incidence 24-40%. Results of laboratory isolation indicated that Rhizoctonia solani isolates had rapid growth with light to dark brown color and all of them formed sclerotia and most of them formed monilioid cells and their hyphae diameter ranged from 8-11 µm. The potato steam canker pathogen was identified as R. solani kühn and the identification was confirm by induce the sexual stage which was shown as Thanatephorous cucumeris (Frank) Donk. All tested isolates contained more than three nucleus in each cell. The detection for the pathogenic isolates of R. solani by using cabbage seeds showed that all the isolates were pathogenic and graduated in there pathogenicity in which 12 of it were highly pathogenic and completely prevented seed germination, while the percentage of seed germination in the treatments of the other isolates were ranged from 4-32%. Results of influence the pathogenic isolates on potato plants under green house condition indicated that all tasted isolates increased the percentage of the infected branches in which the disease incidence was 42.3-87.5% with disease severity of 15.8-53.3% comparing with the control treatment without pathogenic fungus which had zero disease incidence. Results of anastamosis groups identification for R. solani isolates indicated variation in their ability to infect the differential hosts through which it appears that the fungus isolates located within two anastamosis groups AG3 and AG4.

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Article
WEANING WEIGHT AND RAW FLEECE YIELD OF MARAZ CASHMERE GOAT IN IRAQI KURDISTAN
وزن الفطام و وزن الجزة الخام لماعز المرعز في كوردستان العراق

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Effects of sex, age, coat color, kidding status, season of kidding and number of kids rearing on raw fleece yield and body dimensions were studied. Furthermore, effects of sex, type of birth, season of birth, kid coat color and age of does were also investigated on weaning weight. The statistical analyses of this study were based on 123 adult (10 males and 113 females) and 84 kids from Maraz Cashmere goat in Iraqi Kurdistan. The results revealed that overall means of raw fleece yield of goats estimated to be 1.43 kg for males and 0.866 kg for females. Sex, age of does, coat colors and kidding status significantly influenced fleece weight and heart girth. Overall means of weaning weight of kids was 13.256 kg. Sex, season of birth, kid coat colors, and age of does significantly influenced weaning weight of kids. Age had a significant positive effect on raw fleece yield and body dimensions. Kidding status had significant effects (p<0.01) on raw fleece yield, but non-kidding does gave higher yield. Male kids, with dark brown coat color, born in spring from does of 4-5 years old gave higher weaning weight at 4 months. Percentages of fertility, conception, twining rates, barrenness, productivity as well as letter size at weaning of Maraz goat were 84.043, 86.17, 12.658, 13.829, 89.362 and 1.063, respectively. The overall means for oblique body length, heart girth in adults male and female were (54.5 and 51.27 cm and 73.5 and 68.48 cm), respectively. The correlation coefficients among oblique body length, heart girth and raw fleece yield were higher correlation between body dimension and raw fleece yield was found, the highest correlation recorded between heart girth and raw fleece yield was arrived 0.41. The estimated best linear unbiased prediction of does for the total kids weaned and raw fleece yield ranged from -6.194 to 18.145 kg and -0.712 to 0.988 kg, respectively. Genetic-Economic index based on multiple traits (total kids weaned and raw fleece yield) of all Maraz does under investigation ranged from 11.332 to 280.391 $. Frequency in offspring, for light brown coat increased from 0.479 in parents to 0.655 in offspring. In conclusion above results showed the Maraz goat have good production and performance traits and the selection process play positively role to improvement productive traits. For that the improvement this type necessary by opening breeding stations to development Maraz goat in this region of Iraq.

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Article
SEED PRIMING OF BREAD WHEAT TO IMPROVE GERMINATION UNDER DROUGHT STRESS.
تنشيط بذور حنطة الخبز لتحسين انباتها تحت اجهاد الجفاف.

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Experiments were conducted during 2011 in the laboratories of the Davy’s building, School of Biomedical and Biological Sciences, University of Plymouth, UK. The experiment aimed to improve the germination of wheat bread seed (Triticum aestivum L. cv. Caxton) under drought stress via priming, and to determine the levels of drought stress that make seed priming not recommended. Primed and non primed seeds (control) and several levels of negative potentials (0, -0.5, -1, -1.5 and -2 MPa) as drought stress were tested. A completely randomized design with four replicates was used. The results showed that primed seed gave faster ending of germination (LDG), little difference in germination speed between the fast and slow germination members of a seed lot (TSG), faster population of seeds had germinate (MGT), highest first count (FG), highest final count (FIG), highest rapidity of germination which increases when the number of germinated seeds in-creases and the time required for germination decreases (CVG), highest and faster percentage of germination on each day of the germination period (GRI) compared with control treatment (non primed). Increasing of negative potentials up to -2 MPa led to an increase in LDG, TSG, and MGT, and a decrease in FG, FIG, CVG, and GRI compared with zero potential. Primed seeds had positive effect on (LDG), (TSG), (MGT), (FG), (CVG) and (GRI) compared with non primed seed under the same negative potentials. Whereas improved the (FIG) up to -1 MPa. We conclude, that technique of seeds priming can be use to improve the viability and vigour of seeds under drought stress ≤ -1 MPa through the escaping mechanism. On other hand, it's not recommend if the drought stress > -1 MPa.

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Article
PHENOTYPIC VARIATIONS OF MAIZE CMS POPULATIONS AND SUBPOPULATIONS 1- AGRONOMIC TRAITS
التغايرات المظهرية لمجتمعات أصلية ومشتقة لسلالات عقيمة من الذرة الصفراء 1- الصفات الحقلية

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To assess the contributions of selection and selfing in changing gene frequencies and genetic distinctness, eighteen cms maize (Zea mays L.) populations were grown for six seasons during 2008-2010 at the field of Crop Science Dept./College of Agriculture. After three cycles of selection and selfing subpopulations retained significant reduction in , c.v and σ values for most of the studied traits. Inbreeding depression was greater in populations with a wider genetic base, especially R-lines, probably because they had been exposed to less inbreeding, which implies low level of DNA-methylation. Rs were the most heterozygous populations, and their descended population showed the highest reduction in most studied traits. Populations showed highly significant differences for all studied traits. Selection was efficient in increasing hybrid vigor showed by some parental combinations, while it was acted differently as it reduced the ability of some populations to combine positively. However, hybrid vigor effects regarding the best parent were significant and the hybrid A5oxR6o showed the lowest negative value for early parent hybrid vigor for AD which was -13.08%, while for SD was the hybrid combination A2sxR6o of -14.45%. The hybrid A1sxR1s showed the highest hybrid combination over its best parent for both leaf number and area with the values of 30.08% and 59.39%, respectively. Therefore, selection can serve as effective tool in modifying populations genetic structure, and hence their performance.

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Article
PHENOTYPIC ARIATIONS OF MAIZE CMS POPULATIONS AND SUBPOPULATIONS 2- YIELD TRAITS
التغايرات الحقلية لمجتمعات أصلية ومشتقة لسلالات عقيمة من الذرة الصفراء 2- صفات الحاصل

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A study was accomplished to evaluate the contributions of selection and selfing in changing gene frequencies and genetic distinctness. Eighteen cms maize (Zea mays L.) populations were grown for six seasons during 2008-2010 at the field of Crop Science Dept./College of Agriculture. After three cycles of selection and selfing subpopulations retained significant reduction in means for most of the studied traits. Populations showed highly significant differences for all studied traits. The kernel weight reached its maximal values of 28.05g and 26.16g in A5o and R5o populations, and the hybrid A5sxR1o showed its maximal value in hybrids (32.03g). Genetic variability among parent populations concerning kernel weight results in different levels of hybrid vigor with hybrid phenotypes, which were of 83.38% greater than the best parent for the hybrid A5sxR6o. The highest yielding parent populations were of 62.35g and 101.3g for A1o from lines and R2o from tester populations, respectively. The hybrid combination A6sxR3o gave the highest mean for plant yield (141.5g). Selection was efficient in increasing hybrid vigor showed by some parental combinations, while it was acted differently as it reduced the ability of some populations to combine positively. However, hybrid vigor effects regarding the best parent were significant and A3sxR6s possessed its maximal value for plant yield which was 190.98%. Selection and selfing resulted in detectable alterations regarding the performance of populations per se and their ability to combine during hybridization process. These results were supportive to derive version lines with improved attitude.

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