نتایج جستجو برای: length of grain

تعداد نتایج: 21179061  

Journal: :مهندسی بیوسیستم ایران 0
محمد مباشر امینی دانشجوی سابق کارشناسی ارشد، گروه گیاهپزشکی، دانشکده کشاورزی دانشگاه گیلان محمدرضا علیزاده عضو هیئت علمی (دانشیار)، مؤسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران. فریدون پاداشت دهکایی عضو هیئت علمی (استادیار)، مؤسسه تحقیقات برنج کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران. سید علی الهی نیا استاد/ گروه گیاهپزشکی، دانشکده کشاورزی دانشگاه گیلان سید اکبر خداپرست دانشیار/ گروه گیاهپزشکی، دانشکده کشاورزی دانشگاه گیلان

grain discoloration caused by fungi agents, in crop season that the mature grain stage coincides with rain, it causes many damages. in this research effect of paddy discoloration of three varieties (hashemi, gohar and khazar) and disease index in two levels (high and low disease index levels) on grain apparent quality, milling properties and grain bending strength was investigated in a factoria...

ژورنال: علوم آب و خاک 1998
ترنگ, علیرضا , شیخ حسینیان, عبدالحسین , هنرنژاد, رحیم ,

Seven Iranian and foreign cultivars of rice were crossed in a half-diallel. Parents with F2-generations were transplanted in a randomized complete blocks design with 3 replications and evaluated for length to breath ratio of paddy and brown rice, head rice and crust, grain yield, percent of head rice and broken rice, amylose content, gelatinization temperature and gel consistency. The ANOVA tab...

ترنگ, علیرضا , شیخ حسینیان, عبدالحسین , هنرنژاد, رحیم ,

Seven Iranian and foreign cultivars of rice were crossed in a half-diallel. Parents with F2-generations were transplanted in a randomized complete blocks design with 3 replications and evaluated for length to breath ratio of paddy and brown rice, head rice and crust, grain yield, percent of head rice and broken rice, amylose content, gelatinization temperature and gel consistency. The ANOVA tab...

2016
Shuangcheng Li Fengyan Gao Kailong Xie Xiuhong Zeng Ye Cao Jing Zeng Zhongshan He Yun Ren Wenbo Li Qiming Deng Shiquan Wang Aiping Zheng Jun Zhu Huainian Liu Lingxia Wang Ping Li

Grain weight is the most important component of rice yield and is mainly determined by grain size, which is generally controlled by quantitative trait loci (QTLs). Although numerous QTLs that regulate grain weight have been identified, the genetic network that controls grain size remains unclear. Herein, we report the cloning and functional analysis of a dominant QTL, grain length and width 2 (...

ژورنال: علوم آب و خاک 2007
محمود خدامباشی, , سیروس طهماسبی, , عبدالمجید رضائی, ,

Half diallel crosses of eight bread wheat cultivars were used to estimate the genetic parameters and types of genetic control for yield and yield components, and to determine the effects of environmental factors on these parameters. Parents and their F2 hybrids were grown in a randomized block design under irrigated and stressed (terminal drought) conditions. For all traits, except for number o...

2012
Dany Heang Hidenori Sassa

Grain size is a major yield component in rice, and partly controlled by the sizes of the lemma and palea. Molecular mechanisms controlling the sizes of these organs largely remain unknown. In this study, we show that an antagonistic pair of basic helix-loop-helix (bHLH) proteins is involved in determining rice grain length by controlling cell length in the lemma/palea. Overexpression of an atyp...

ژورنال: علوم آب و خاک 2007
رحیم هنرنژاد, ,

Six Iranian rice cultivars (Binam, Domsiyah, Shahpasand, Sepidrud, Khazar and Valed 46) were crossed in 1989 in the Iranian Rice Research Institute in Rasht, Iran in a full-diallel design. The F1 progenies together with parents were transplanted in a CRBD in the 5 x 0.75 m plots at plant density of 25 x 25 cm (60 plantlets per plot) in 3 replications. Part of this research was published in 1994...

رحیم هنرنژاد, ,

Six Iranian rice cultivars (Binam, Domsiyah, Shahpasand, Sepidrud, Khazar and Valed 46) were crossed in 1989 in the Iranian Rice Research Institute in Rasht, Iran in a full-diallel design. The F1 progenies together with parents were transplanted in a CRBD in the 5 x 0.75 m plots at plant density of 25 x 25 cm (60 plantlets per plot) in 3 replications. Part of this research was published in 1994...

آرمینیان, علی, هوشمند, سعدالله,

     Determining the relationships between grain yield and some yield components of wheat is most important in permanent yield production.  Using path coefficient analysis in order to determine key traits affecting majorly yield, and also to study direct and indirect effects of yield and yield components, this research was performed during 2006-2009 ys using 94 doubled-haploid (DH) lines, their...

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