نتایج جستجو برای: affected most the rainfed wheat grain yield

تعداد نتایج: 16135216  

2016
Madhav Bhatta Teshome H. Regassa

Winter wheat (Triticum aestivum L.) produced in Nebraska (NE) is often inconsistent in yield largely due to variability in environmental conditions. Managing production practices may ameliorate this problem of winter wheat in NE. The objective of this study was to identify the combined effects of seeding rate (3), genotype (6), and top-dressed nitrogen (2) on the yield and agronomic characteris...

Q.W Xue Y.H. Yang Y.P. Zhang Z.M Wang

The remobilization of water soluble carbohydrates (WSC) has an important role for grain yield. This study investigated the accumulation and remobilization of WSC in non-leaf organs (chaff, upper stem, and lower stem) and their contribution to grain yield, under different irrigation levels (rainfed, reduced irrigation, and full irrigation) and seeding rate treatments (450, 600 and 750 plants...

2013
S. Pradhan

A field experiment was carried out during 2009-11 on a sandy loam soil of IARI, New Delhi on wheat with four levels of irrigation (rainfed, irrigations to replenish 30, 60 and 100% moisture deficit from field capacity) as main plot factors and four levels of nitrogen (0, 30, 60 and 120 kg N/ha) as subplot factors in a split plot design. The soil moisture storage in the profile showed inverse re...

حیدری, بهرام , سعیدی, قدرت الله , سید طباطبائی, بدرالدین ابراهیم ,

  In this study, factor analysis was conducted to determine the factors which contributed to the variation of quantitative traits and path analysis was performed to find the direct and indirect effects of yield components on grain yield in bread wheat. A doubled haploid population of 157 lines of wheat (Triticum aestivum L.) was evaluated for agronomic and morphological traits, using a randomiz...

Journal: :علوم گیاهان زراعی ایران 0
سید محمد علوی سینی جلال صبا فرهاد جباری کاظم سلیمانی جابر نصیری

this study was performed to investigate the photosynthetic partitioning pattern of materials to aerial parts of bread wheat in dryland conditions. it was as well to study its relationship with bread wheat resistance and grain yield in drought conditions. seven genotypes including two cultivars (azar2, sardari) and five lines were investigated in a field experiment through a randomized complete ...

2013
Ryan W. Higginbotham Stephen S. Jones Arron H. Carter

In Washington, over fifty percent of the wheat produced under rainfed conditions receives less than 300 mm of annual precipitation. Hence, a winter wheat-summer fallow cropping system has been established to obtain adequate moisture for winter wheat production. Current tilled fallow systems receive significant soil erosion through both wind and water. As a result, no-till chemical fallow system...

جعفریان, طیبه, زارع, جواد, سی و سه مرده, عادل,

This study the effect of seed preparation (priming) with different concentrations of hydrogen peroxide on the anatomy of the flag leaf and spike two wheat genotypes( Cross Sabalan ( bread wheat) and Saji(durum wheat)) and its relationship with grain yield, under dry land farming system condition, Experimental design was factorial, arranged in randomized complete block. Results showed that the n...

Journal: :crop breeding journal 2012
e. bijanzadeh y. emam e. ebrahimi m. ebrahimi

to identify important attributes/factors that contribute to grain and biological yields of wheat, 9912 sets of diverse data from field studies were extracted, and supervised attribute-weighting models were employed. results showed that when biological yield was the output, grain yield, nitrogen applied, rainfall, irrigation regime, and organic content were the most important factors/attributes,...

ژورنال: علوم آب و خاک 2008
حیدری, بهرام , سعیدی, قدرت الله , سید طباطبائی, بدرالدین ابراهیم ,

  In this study, factor analysis was conducted to determine the factors which contributed to the variation of quantitative traits and path analysis was performed to find the direct and indirect effects of yield components on grain yield in bread wheat. A doubled haploid population of 157 lines of wheat (Triticum aestivum L.) was evaluated for agronomic and morphological traits, using a randomiz...

Alt Jafarby, Jabar, Hosseinpour, Tahmasp, Karimizadeh, Rahmatollah, Keshavarzi, Kavoos, Shahbazi, Kamal, Sharifi, Peyman,

Durum wheat (Triticum turgidum L.), like most other crops, is affected by various stresses. Therefore, cultivars that, in addition to the ability to produce higher yields, can maintain their yield potential in different years and locations are considered superior cultivars. In order to obtain high-yielding and stable genotypes of durum wheat, 16 lines with two control cultivars Dehdasht and Sey...

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