نتایج جستجو برای: general and specific combining ability

تعداد نتایج: 16990517  

Journal: :کشاورزی (منتشر نمی شود) 0
مهرزاد اله قلی پور عصو هیات علمی موسسه تحقیقات برنج کشور، رشت بابک ربیعی استادیار، دانشکده علوم کشاورزی، دانشگاه گیلان، رشت مریم حسینی عصو هیات علمی موسسه تحقیقات برنج کشور، رشت حمید درستی عصو هیات علمی موسسه تحقیقات برنج کشور، رشت محمد محمدی کارشناس موسسه تحقیقات برنج کشور، رشت

to determine the general and specific combining ability of the parental lines, five restorers ‎and four male sterility lines were selected as lines and testers respectively. nine parental lines were ‎crossed in a line × tester crossing system in year 2005 and the eight f1 hybrids and their six ‎parents in randomized complete blocks design (rcbd‏ (‏in two replications for yield, yield ‎component...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده ادبیات و زبانهای خارجی 1393

the purpose of this study was to find the relationship between critical thinking and self-regulation with reading comprehension of iranian female elementary language learners. the present study is a correlational one having a descriptive design. two questionnaires, critical thinking questionnaire and self-regulation questionnaire which were valid and reliable questionnaires and four reading com...

Journal: :پژوهش های زراعی ایران 0
بهنام روستا باغی حمید دهقانی بهرام علی زاده ناصر صباغ نیا

to study combining ability and genetic parameters of seed yield trait in rapeseed, eight lines of rapeseed were evaluated by a design of half diallel cross. seeds of f1 generation and their parents were grown in a 6 × 6 simple lattice design with two replications. according to the analysis of variance, general combining ability (gca), specific combining ability (sca) and mean squares of genotyp...

Journal: :به نژادی گیاهان زراعی و باغی 0
حسن عبدی مربی پژوهشی، بخش اصلاح و تهیۀ نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان تهران عادل اسد زاده کارشناس ارشد پژوهشی، پردیس ابوریحان، دانشگاه تهران محمد رضا بی همتا استاد گروه زراعت و اصلاح نباتات، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران

breeding for drought stress is one the important purposes in wheat cultivars breeding programs. grain yield under drought stress is depended on phonological, morphological and physiological features. in order to investigate the general and specific combining ability and genes function under drought stress in three and two bread wheat lines and cultivars respectively, diallel one way cross was p...

Journal: :چغندرقند 0
محمد رضا فتحی کارشناس ارشد مؤسسه تحقیقات چغندرقند

general combining ability of sugar beet parents were determined for different quantity and quality characteristics.forty six sugar beet hybrids obtained from crosses of 23 diploid pollinators with two male sterile parents as tester together with three checks were evaluated for 10 important agronomic and technological characters at kamalshar research station in karaj in 2004.experiment was carri...

     12 single crosses (F1) achieved by combining four testers and three commercial lines of tomato were evaluated for their response to water deficit stress and the combining ability of yield and some yield components. The layout was split plots according to randomized complete block design with three replications and three irrigation levels (FC, 60%FC and 40%FC). Crossing among lines and test...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1388

the present study was an attempt to conduct a contrastive analysis between general english (ge) and english for specific purposes (esp) texts in terms of cohesion and cohesive devices. to this end, thirty texts from different esp and ge textbooks were randomly selected. then they were analyzed manually to find the frequency of cohesive devices. cohesive devices include reference, substitution, ...

امیری, رضا , اوراضی زاده, , رجبی, اباذر, مرتضویان, سید محمد مهدی, نیازیان, محسن,

In order to study the genetic control of root yield, sugar yield and white sugar yield in tropical beet, the biplot of diallel data was used. 36 hybrids derived from crosses among 9 sugar beet genotypes along with four control treatments were evaluated at Safiabad Agricultural Research Center, Dezful, Iran during 2008-2009 growing season. The experimental design was a triple lattice design with...

افتخاری, علی, باقی زاده, امین, عبدشاهی, روح اله, یعقوبی, مهدی,

Drought is one of the main dangers for optimum production of wheat. Achieving optimal results in breeding programs require to make informed choices of parents based on general and specific combining ability.In order to study the genetic characteristics, general and specific combining abilities and gene actions under drought stress conditions, a half diallel cross including 9 varieties of wheat ...

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