نتایج جستجو برای: grain filling rate and duration

تعداد نتایج: 16906511  

Majid Nabipur, Mona Pureisa, Musa Meskarbashi,

Barley crop grown in semiarid areas may experience water deficit especially during grain filling that makes them more dependent on stem water-soluble carbohydrates (WSC). Fructans are the most important reserved carbohydrates. A pot experiment was undertaken at Shahid Chamran university in the duration of 2010-2011 growing seasons to investigate the accumulation and loss of WSC and the activity...

Journal: :Journal of experimental botany 2013
Tingting Chen Yunji Xu Jingchao Wang Zhiqin Wang Jianchang Yang Jianhua Zhang

This study tested the hypothesis that the interaction between polyamines and ethylene may mediate the effects of soil drying on grain filling of rice (Oryza sativa L.). Two rice cultivars were pot grown. Three treatments, well-watered, moderate soil drying (MD), and severe soil drying (SD), were imposed from 8 d post-anthesis until maturity. The endosperm cell division rate, grain-filling rate,...

امام, یحیی, موری, سعید, کریم‌زاده سورشجانی، , هدایت اله ,

Abstract: Wheat grain yield is reduced by post-anthesis drought stress conditions in most wheat growing farmlands of Iran. To evaluate the effect of post-anthesis-withholding irrigation on yield, yield components and canopy temperature of wheat cultivars, a field experiment was conducted as split plot in a completely randomized block design with four replications at experimental farm of coll...

رجب زاده, محمد, میرلوحی, آقا فخر,

Optimum rice population densities and the response of rice yield and yield components to population densities and planting pattern are important factors helping rice producers and researchers to achieve maximum productivity. For this reason, a randomized complete block design experiment was conducted during the summer of 1995 at Isfahan University of Technology Research Farm located at Lavark, ...

Journal: :به زراعی کشاورزی 0
علی خسروی دانشگاه آزاد اسلامی، واحد علوم و تحقیقات اردبیل، گروه کشاورزی، اردبیل، ایران رئوف سید شریفی دانشیار گروه زراعت و اصلاح نباتات، دانشکده علوم کشاورزی دانشگاه محقق اردبیلی علی اکبر ایمانی دانشگاه آزاد اسلامی، واحد علوم و تحقیقات اردبیل، گروه کشاورزی، اردبیل، ایران

in order to study of nitrogen application time and seed inoculation with plant growth promotingrhizobacteria on yield, fertilizer use efficiency and grain filling rate of sunflower, a factorial experimentwas conducted based on randomized complete block design with three replications in research farm ofislamic azad university, ardabil branch in 2011. the first factor was time of nitrogen applica...

Journal: :بوم شناسی کشاورزی 0
بی بی الهه موسوی فر محمدعلی بهدانی مجید جامی الاحمدی محمد سعید حسینی بجد

deficit of oil seeds and high volume of oil imports in iran, and limitation of water sources against production of many oil seed crops, demonstrate the importance of detection tolerant species and cultivars for stressful conditions and their most sensitive growth stages to saline stress. in order to study response of spring safflowers (carthamus tinctorius l.) genotypes to disruption irrigation...

ژورنال: علوم آب و خاک 1998
رجب زاده, محمد, میرلوحی, آقا فخر,

Optimum rice population densities and the response of rice yield and yield components to population densities and planting pattern are important factors helping rice producers and researchers to achieve maximum productivity. For this reason, a randomized complete block design experiment was conducted during the summer of 1995 at Isfahan University of Technology Research Farm located at Lavark, ...

Majid Nabipur, Mona Pureisa, Musa Meskarbashi,

Barley crop grown in semiarid areas may experience water deficit especially during grain filling that makes them more dependent on stem water-soluble carbohydrates (WSC). Fructans are the most important reserved carbohydrates. A pot experiment was undertaken at Shahid Chamran university in the duration of 2010-2011 growing seasons to investigate the accumulation and loss of WSC and the activity...

2013
Weibing Yang Tie Cai Yingli Ni Yong Li Junxiang Guo Dianliang Peng Dongqing Yang Yanping Yin Zhenlin Wang

Hormones play important roles in regulating the grain filling process and protein accumulation. In this study, two wheat cultivars differing in grain protein concentration were used to investigate the changes in endogenous hormone contents and the mechanism of hormonal regulation of grain filling and protein accumulation under exogenous application of abscisic acid (ABA) or gibberellic acid (GA...

Journal: :علوم گیاهان زراعی ایران 0
نسرین زیلوئی دانشجوی دکتری اکولوژی گیاهان زراعی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علی احمدی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مهدی جودی استادیار، دانشکدة کشاورزی و منابع طبیعی مغان، دانشگاه محقق اردبیلی

proportionality of wheat cultivars growth patterns to the area’s agro climatic condition will improve crop production. the objective of this study was identifying the phenology of a wide range of wheat varieties in iran, as well as evaluating the relationship between phenology and drought stress tolerance under late season drought stress. in this experiment, 36 wheat genotypes were studied unde...

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