نتایج جستجو برای: combining ability and heterosis were studied in a 6×6 partial diallel cross during 2007

تعداد نتایج: 24095512  

Journal: :علوم باغبانی ایران 0
جمالعلی الفتی چیرانی دانشکده کشاورزی دانشگاه گیلان، استادیار غلامعلی پیوست دانشکده کشاورزی دانشگاه گیلان، استاد حبیب اله سمیع زاده لاهیجی دانشکده کشاورزی دانشگاه گیلان، دانشیار بابک ربیعی دانشکده کشاورزی دانشگاه گیلان، دانشیار سید اکبر خداپرست دانشکده کشاورزی دانشگاه گیلان، دانشیار

combining ability and heterosis were studied in a 6×6 partial diallel cross during 2007-2009 to see the nature of gene action in cucumber (cucumis sativus l.). analysis of variance revealed high significant differences among all the f1 hybrid means and among their respective six parental values for all the traits examined. the mean squares attributed to general combining ability (gca) and speci...

Journal: :علوم باغبانی 0
جمالعلی الفتی چیرانی غلامعلی پیوست حبیب اله سمیع زاده لاهیجی بابک ربیعی سیداکبر خداپرست

partial diallel design can be used to investigate the general and specific combining ability, and heterosis. combining ability and heterosis were studied in a 6×6 partial diallel cross to see the nature of gene action for fruit quality indices in cucumber (cucumis sativus l.) during 2007 to 2009. analysis of variance revealed highly significant differences among all the f1 hybrid means and thei...

Journal: :علوم گیاهان زراعی ایران 0
عزت اله فرشادفر استاد دانشکده کشاورزی دانشگاه رازی مریم کارونی دانشجوی سابق کارشناسی ارشد دانشکده کشاورزی دانشگاه رازی سعید پورداد استادیار مرکز تحقیقات دیم سرارود، کرمانشاه لیلا زارعی دانشجوی دکتری دانشکده کشاورزی دانشگاه رازی مهدی جمشید مقدم کارشناس مرکز تحقیقات دیم سرارود، کرمانشاه

production of high rapeseed yield is important in rapeseed breeding programs. with regards to the importance of estimation of general combining ability (gca), specific combining ability (sca), additive and dominance genetic variances, gene action, heterosis and heritability, an experiment was carried out in a 9×9 diallel design. nine parents with 36 crosses were studied in a randomized complete...

Journal: :journal of agricultural science and technology 2010
m. rahimi b. rabiei h. samizadeh a. kafi ghasemi

quantitative valuations of observed heterosis for 11 traits of 15 f1 hybrids generated by half diallel crosses of six diverse rice cultivars (domsefid, hashemi and binam, three iranian local cultivars; dorfak, kadous and ir30, three improved cultivars), were made in this study. fifteen f1 hybrids and their parents were evaluated in a randomized complete block design with three replications at t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

Journal: :علوم باغبانی ایران 0
محمود اکرمی دانشگاه تربیت مدرس تهران حمید دهقانی دانشگاه تربیت مدرس مختار جلالی جواران دانشگاه تربیت مدرس تهران رسول محمدی دانشگاه تربیت مدرس تهران

a study of the combining ability and gene effects, that can obtained through diallel cross analysis provides considerable information to breeders for a design of breeding programs. inheritance and genetic control of yield and its components were studied in a full diallel cross for seven iranian cantaloupe cultivars namely: rish-baba, shah-abadi, samsouri, dastjerdi, magasi-neyshabour, till-toro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

critical thinking ability has an important role in education. accordingly, scholars around the world are searching for new ways for teaching and improving students critical thinking ability. in line with the studies in efl contexts supporting the positive relationship between critical thinking and writing performances, this study investigated the differential effects of halverson’s critical thi...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم انسانی 1393

recent studies in scientific education as well as foreign and second language instruction suggest that thinking has rarely been an integral part of education and training in classroom. some scholars decried the lack of emphasis on thinking in the institutes and schools. they noted that memorization and drills were rewarded,while inquiry, reflection, and consideration of alternatives were frowne...

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