نتایج جستجو برای: wheat grain yield

تعداد نتایج: 287126  

ژورنال: علوم آب و خاک 2019

Limited information is available on the effect of residues rates and slope direction on dryland wheat (Triticum aestivum L.) yield.  This study was carried out to determine the effects of residues rates and tillage direction on grain yield and yield components of the Sardary wheat in a dryland region in Zanjan. Five wheat residues rates (0, 25, 50, 75 and 100% surface cover) were applied and i...

2017
Mingming Yang Xiang Gao Jian Dong Nitant Gandhi Huanjie Cai Diter H. von Wettstein Sachin Rustgi Shanshan Wen

Grain development is one of the biological processes, which contributes to the final grain yield. To understand the molecular changes taking place during the early grain development, we profiled proteomes of two common wheat cultivars P271 and Chinese Spring (CS) with large and small grains, respectively at three grain developmental stages (4, 8, and 12 days post anthesis). An iTRAQ (isobaric t...

خوشگفتارمنش, امیرحسین, سنایی استوا, آزاده , شریعتمداری, حسین, شریفی, حمیدرضا, مالیان , منا, مجیدی, محمد مهدی,

These field trials were carried out to investigate the effect of various zinc (Zn) fertilizer application treatments on grain yield of some spring (Isfahan and Neishabour) and winter wheat cultivars (Mashhad and Jolge-e-Rokh) with different Zn efficiency during 2009-2010 growth seasons. Five Zn fertilizer treatments were applied including: no added Zn (control), soil application of Zn-sulfate, ...

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...

ژورنال: علوم زراعی ایران 2019
Ghandi, Akbar, Moayedi, Ali Akbar, Najafi Mirak, Tohid, Sasani, Shahriar,

Identification of adapted genotypes with high grain yield is the most important goal in durum wheat breeding programs. To study adaptation and grain yield stability of durum wheat genotypes, 18 durum wheat promising lines with two commercial durum and bread wheat cultivars were used. The durum wheat genotypes were evaluated in four locations; Isfahan, Karaj, Kermanshah and Neishabour in tempera...

2015
Mukhtar Ahmed Fayyaz-ul-Hassan

The unpredictability and large fluctuation of the climatic conditions in rainfed regions do affect spring wheat yield and grain quality. These variations offer the opportunity for the production of better quality wheat. The effect of variable years, locations and sowing managements on wheat grain yield and quality was studied through field experiments using three genotypes, three locations for ...

Journal: :journal of agricultural science and technology 2010
g. najafian a. k. kaffashi a. jafar-nezhad

eighteen wheat breeding lines were evaluated along with two check cultivars across nine locations of temperate zone of iran during two crop seasons (2003-2004 and 2004-2005). field records were taken for some important traits especially grain yield. combined anova for nine locations in the first season and for seven locations in both seasons was undertaken. in each case, additive main effects a...

Journal: :ماشین های کشاورزی 0
احمد حیدری ایرج اسکندری

a three-year field experiment (2004-2007) was conducted on a silty clay loam soil at tajarak research station of hamedan to determine proper grain drill for wheat in hamedan dryland areas. in this study, three grain drills including: hamedani barzegar; sahalan kesht; and kesht gostar with wheat seed broadcasting and disking were used. the experiment was a randomized complete block design with f...

Journal: :Journal of experimental botany 2012
Julie Bednarek Aurélia Boulaflous Christine Girousse Catherine Ravel Caroline Tassy Pierre Barret Mohamed Fouad Bouzidi Said Mouzeyar

For important food crops such as wheat and rice, grain yield depends on grain number and size. In rice (Oryza sativa), GW2 was isolated from a major quantitative trait locus for yield and encodes an E3 RING ligase that negatively regulates grain size. Wheat (Triticum aestivum) has TaGW2 homologues in the A, B, and D genomes, and polymorphisms in TaGW2-A were associated with grain width. Here, t...

2017
Drew J. Lyon David D. Baltensperger

cultivars, net return is maximized when grazing is terminated at first hollow stem—the stage at which hollow Although grazing of winter wheat (Triticum aestivum L.) is a stem can first be identified above the crown (Redmon common practice in the southern Great Plains, little is known about the efficacy of wheat as a dual-purpose crop in the Nebraska Panhanet al., 1996). However, beyond an optim...

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