نتایج جستجو برای: defoliation did not affect grain weight at any spike position whereas

تعداد نتایج: 6191513  

محمود خدام باشی امامی, , سید حسین محمدی, , عبدالمجید رضایی, ,

Half diallel crosses of nine Iranian wheat cultivars were used to estimate the general and specific combining ability effects and other genetic parameters related to yield and its components. Parents with F2 generations were evaluated at Research Farm, College of Agriculture, University of Shahrekord, in a randomized complete block design with 3 replications. Partitioning of genotypes mean squa...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
علی احمدی کارشناس ارشد مرکز تحقیقات کشاورزی و منابع طبیعی لرستان، خرم آباد طهماسب حسین پور مربی مرکز تحقیقات کشاورزی و منابع طبیعی لرستان، خرم آباد مهدی سلطانی کارشناس ارشد مرکز تحقیقات کشاورزی و منابع طبیعی یزد

an experiment was conducted to determine the effect of five plants densities (100,200,300,400 and 500 grain m-2) on yield and its components in three rain fed barley cultivars (ezeh, mahor and dopar). a factorial experiment based on randomized complete block design with three replications was conducted in agricultural research center of khorramabad city in the east of iran (in 2006-2007). in th...

فرجی, ابوالفضل, میرلوحی, آقا فخر,

In order to study the effects of rate and time of nitrogen application on vegetative characters, i.e., yield and yield components of rice (Zayandeh-rood variety), an experiment was conducted at Isfahan University of Technology research farm during summer 1996. Four N rates including (60, 90, 120 and 150 KgN/ha) and four splitting form (1- all N applied before transplanting 2- 1/3 N applied befo...

Journal: :بوم شناسی کشاورزی 0
یاسر یعقوبیان همت اله پیردشتی ابراهیم محمدی گل تپه ولی فیضی اصل عزت اله اسفندیاری

in order to evaluate arbuscular mycorrhiza (glomuss mossea) and mycorrhiza-like (piriformospora indica) effects on yield, yield components and some morphological (cv. azar 2) traits of wheat (triticum aestivum l.) under water deficit stress, a pot experiment was conducted as factorial experiment based on completely randomized design with four replications. treatments were drought stress at thre...

Journal: :علوم گیاهان زراعی ایران 0
مهرانگیز پاپی دانشجوی سابق کارشناسی ارشد، گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علی احمدی استاد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج حسین رضا رفیعی کارشناس گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

under condition of limited water supply, determination of minimum water requisite to keep potential yield should be considered as an important target. with this respect, a field experiment was conducted at research farm of university college of agriculture and natural resources, university of tehran, in 2012-2013, karaj, iran. the experiment was conducted in a split plot, based on randomized co...

Journal: :به زراعی نهال و بذر 0
مصطفی آقایی سربرزه m. aghaee-sarbarzeh seed and plant improvement institute, karaj, iranموسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج. رحمان رجبی r. rajabi dryland agricultural research institute, kermanshah, iranموسسه تحقیقات کشاورزی دیم، سرارود، کرمانشاه. رضا حق پرست r. haghparast dryland agricultural research institute, kermanshah, iranموسسه تحقیقات کشاورزی دیم، سرارود، کرمانشاه رضا محمدی r. mohammadi dryland agricultural research institute, kermanshah, iranموسسه تحقیقات کشاورزی دیم، سرارود، کرمانشاه

this study was conducted to evaluate the effect of drought stress on 22 durum wheat genotypes. different characteristics such as grain weight per spike, plant biomass, 100 grain weight, free proline content in leaves, and percentage of cell membrane damage were studied in greenhouse and laboratory conditions. genotypes were sown under normal irrigation and moisture stress conditions. in stress ...

In order to study the relationship between grain yield and some of agronomic traits under drought stress condition, an experiment with 305 bread wheat inbred lines derived from a cross between Roshan × Falat and 25 drought tolerant and susceptible varieties along with 4 check varieties (Roshan, Falat, Mahdavi and Shahpasand) was conducted in augmented complete block design, at Research Field of...

ژورنال: علوم آب و خاک 2007
احمد ارزانی, , الهام فراهـانی, ,

An experiment was conducted to investigate the genetic diversity in the cultivars and F1 hybrids of durum wheat, using agronomic and morphological traits. Evaluation of consistency between choosing parents of crosses based on morphological and agronomic observations and genetic distance obtained from cluster analysis were objectives of this study. Fourty- two genotypes were evaluated using a ra...

احمد ارزانی, , الهام فراهـانی, ,

An experiment was conducted to investigate the genetic diversity in the cultivars and F1 hybrids of durum wheat, using agronomic and morphological traits. Evaluation of consistency between choosing parents of crosses based on morphological and agronomic observations and genetic distance obtained from cluster analysis were objectives of this study. Fourty- two genotypes were evaluated using a ra...

ژورنال: علوم آب و خاک 2008
ارزانی, احمد , فراهانی , الهام ,

  An experiment was conducted to investigate the heterosis in 12 F1 hybrids of durum wheat using agronomic and morphological traits. Parents were selected according to the estimated genetic distances based on the results of a two-year field experiment, which were then crossed to produce F1 hybrids. Twenty-three genotypes (including 11 parents and 12 hybrids) were evaluated using a randomized co...

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