پديد آورنده :
دادخواه دستجردي، مرضيه
عنوان :
ارزيابي تنوع ژنتيكي و سازگاري توده هاي بومي اسپرس
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
اصلاح نباتات
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
دوازده، 80ص:جدول، نمودار
يادداشت :
ص.ع. به: فارسي و انگليسي
استاد راهنما :
محمد مهدي مجيدي، آقا فخرميرلوحي
استاد مشاور :
قدرت الله سعيدي
توصيفگر ها :
ضريب همبستگي , تجزيه خوشه اي , تجزيه به عامل
تاريخ نمايه سازي :
11/11/88
استاد داور :
احمد ارزاني، خورشيد رزمجو
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
Evaluation of Diversity and Adaptation in Sainfoin Ecotypes Marzie Dadkhah dastjerdi m dadkhahdastjerdi@ag iut ac ir Date of submission 27 10 2009 Department of Agronomy and Plant Breeding Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisors s Name and Email address Mohammad Mahdi Majidi majidi@cc iut ac ir AbstractSainfion onobrychis viciifolia Scop is a perennial legume widely adapted to environmental conditionsand has been successfully used as a pasture and hay forage in Iran This experiment was carried out toinvestigate adaptability and genetic variation of different traits using 21 Iranian Sainfoin ecotypes duringtwo years The experiment was conducted using a randomized complete block design with threereplications Results indicated that there are considerable within and among population variation in thestudied germplasm can be exploited in breeding programs Genotypic coefficient of variability for forageyield was highest while the lowest belonged to phenological traits and plant height The heritability fordry matter yield leaf percentage stem percentage plant height and number of stem per plant were over50 percent The result of analysis of variance showed significant differences among ecotypes for all traits The interactions of year by ecotypes for all characters were highly significant showing different responseof ecotypes Results showed that one ecotype from Khansar had the highest value for dry matterproduction and the lowest one belonged to an ecotype from Semirom Evaluation of traits related toforage quality revealed that the highest proportion of leaf to stem ratio belonged to ecotypes fromFaradombe and Khansar 2 07 and 2 04 respectively Correlation coefficients of dry matter yield withfresh yield dry matter percentage stem percentage number of stem per m2 and number of node weresignificantly positive Also correlation coefficients of dry matter yield with leaf percentage and leaf stemratio were significantly negative On the basis of stepwise regression analysis stem percentage and plantheight justified the majority of dry matter yield variation The result of path analysis indicated that stempercentage and plant height had the most direct and positive effect on dry matter yield Factor analysisrevealed five factors which justified more than 75 percent of the total variation and were named forageyield components viability potential single plant size establishment rate and dry matter percentage respectively Applying cluster analysis on the studied attributes three groups were obtained Regardingall measured characters the least and the most similar accessions were identified to be used in the futurebreeding programes Key Words Cluster analysis Correlation coefficients Factor analysis Geneticdiversity Sainfoin
استاد راهنما :
محمد مهدي مجيدي، آقا فخرميرلوحي
استاد مشاور :
قدرت الله سعيدي
استاد داور :
احمد ارزاني، خورشيد رزمجو
