نتایج جستجو برای: grain yield 20 percent

تعداد نتایج: 913602  

Journal: :پژوهش های تولید گیاهی 0
مریم صارمی کارشناس ارشد پردیس کشاورزی و منابع طبیعی دانشگاه رازی کرمانشاه بهمن فرهادی استادیار گروه مهندسی آب، پردیس کشاورزی و منابع طبیعی دانشگاه رازی کرمانشاه عباس ملکی استادیار گروه مهندسی آب، دانشکده کشاورزی دانشگاه لرستان معصومه فراستی استادیار گروه مهندسی آب، پردیس کشاورزی و منابع طبیعی دانشگاه رازی کرمانشاه

background and objectives: although more than 90 percent of consumed water used in agricultural sector, water is the major limiting factor for agricultural development in iran. over the past few years increasing agricultural crop water productivity thorough deficit irrigation methods has been studied by agricultural researchers and planners. although lorestan province is one of the major produc...

امیرنیا, رضا , تاجبخش, مهدی , رضایی مرادعلی, محمد, طالب زاده, سیدجواد, هادی, هاشم ,

In order to study the relationships among traits and grouping genotypes of wheat, 11 promising lines of winter wheat along with Orum, Zareh, Mihan, Zarrin  and peshgam  cultivars were evaluated under two levels of irrigation (complete irrigation and cutting irrigation from flowering to maturity) at Agricultural Research Station of Miandoab during 2013-2014 and 2014-2015 growing seasons. The exp...

Amiri, Seyed Reza , Salimi, Khaled , Ziaei, Seyed Masoud ,

Saravan is one of the arid regions of the country, so cultivating plants compatible with these areas can be effective in improving the province's agriculture. One of the most recently considered plants in the country is quinoa, which is resistant to adverse environmental conditions. Therefore, the present experiment was conducted with the aim of investigating the different levels of irrigation ...

In order to study the effect of zinc and magnesium on agronomic and seed germination traits of wheat (Sivand cultivar), the current study was carried out at Mahidasht Agricultural Research Station in Kermanshah over the years 2012 and 2013. The experiment was conducted as factorial based on completely randomized block design with three replications. The treatments consisted of four levels of zi...

Journal: :کشاورزی (منتشر نمی شود) 0
مریم حسینی کارشناس ارشد موسسه تحقیقات برنج کشور، رشت محسن قدسی کارشناس ارشد موسسه تحقیقات برنج کشور، رشت رحیم هنرنژاد استاد، گروه زراعت و اصلاح نباتات، دانشگاه گیلان، رشت شهریار بابازاده کارشناس موسسه تحقیقات برنج کشور، رشت

a number of 36 varieties of rice were compared for different traits. the correlation coefficient of grain yield with tiller number, harvest index, length of grain, ratio of length to width of grain, amylase content, days to 50 percent flowering and days to full maturity were positive and significant (p

Journal: :تولید گیاهان زراعی 0

determination of the response of differentcrop varieties to environmental variables from planting to harvest is one of the fundamental pillars of agriculture planning to achieve maximum yield and desirable quality. changing planting date by effect on vegetative and reproductive growth period and balance between them, will affect yield and product quality. in order to study the responses of four...

In order to study the response of morphology, yield and yield components of spring safflower (Carthamus tinctorious L.) cultivars to different sowing dates, an experiment was carried out using a split-plot design on the basis of a randomized complete block design with four replications, in Agricultural Sciences and Natural Resources University of Khouzestan, south-west of Iran at 2016-2017. Exp...

ژورنال: :تحقیقات آب و خاک ایران 2012
مسعود سلطانی عبد المجید لیاقت عباس ستوده نیا

supplementary irrigation is one of the most effective field management practices to improve water productivity and crop yield in rainfed conditions. time of supplementary irrigation is another important parameter affecting the enhancement of yield. in order to study the effect of supplementary irrigation time as well as planting date, two factors, namely: 1) supplementary irrigation (no irrigat...

Gholamhossein Davarynejad Hossein Aroiee Majid Azizi Yarahmadi Maryam Zeinab Safaei,

Water deficit stress, permanent or temporary, limits the growth and the distribution of natural vegetation and the performance of cultivated plants more than any other environmental factors. Mechanism involved is still not clear. In order to investigate the effect of different irrigation intervals and anti-transpirants compoundson yield and yield components of Black Cumin (Nigella sativa</e...

Gholamhossein Davarynejad Hossein Aroiee Majid Azizi Yarahmadi Maryam Zeinab Safaei,

Water deficit stress, permanent or temporary, limits the growth and the distribution of natural vegetation and the performance of cultivated plants more than any other environmental factors. Mechanism involved is still not clear. In order to investigate the effect of different irrigation intervals and anti-transpirants compoundson yield and yield components of Black Cumin (Nigella sativa</e...

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