نتایج جستجو برای: number of spikelet per spike 15

تعداد نتایج: 21252898  

Journal: :کشاورزی (منتشر نمی شود) 0
سید علی رضا سیدمحمدی دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد اهواز، خوزستان علی اشرف جعفری دانشیار مؤسسه تحقیقات جنگل ها و مراتع کشور، تهران، تهران نسرین السادات سیدمحمدی دانش آموخته کارشناسی ارشد گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، تهران سید نادر موسویان دستیار علمی دانشگاه پیام نور خوزستان، خوزستان عصمت سرافراز دانشجوی دوره دکتری رشته زراعت، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، تهران

in order to choose the best adaptable genotypes for arak condition, 31 genotypes of crested wheatgrass collected of gene bank research institute of forests and rangelands iran, were examined under normal and drought stress conditions using randomized complete block design with 3 replications during 2004-05. the days to heading and days to pollination, plant height (cm), number of tiller, spike ...

BACKGROUND: Management of nutrients, especially nitrogen, in order to have economic production, maintain sustainable agriculture and provide food security, is considered to have an important priority. OBJECTIVES: Current study was conducted to evaluate effect of different level of nitrogen fertilizer and vermicompost on quantitative and qualitative traits of w...

Journal: :علوم گیاهان زراعی ایران 0
منصور خضری عفراوی عبد الهادی حسین زاده ولی اله محمدی علی احمدی

drought stress is considered as the most important environmental abiotic stress, affecting grain yield of crop plants especially in arid and semi arid regions. increasing and utilization of the genetic diversity can be a useful strategy in breeding for drought resistance. in this study, twenty iranian durum wheat landraces along with two check cultivars were evaluated in a randomized complete b...

2017
Amelia Burroughs Andrew K. Wise Jianqiang Xiao Conor Houghton Tianyu Tang Colleen Y. Suh Eric J. Lang Richard Apps Nadia L. Cerminara

KEY POINTS Purkinje cells are the sole output of the cerebellar cortex and fire two distinct types of action potential: simple spikes and complex spikes. Previous studies have mainly considered complex spikes as unitary events, even though the waveform is composed of varying numbers of spikelets. The extent to which differences in spikelet number affect simple spike activity (and vice versa) re...

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...

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...

Journal: :New Phytologist 2021

Grain yield in bread wheat (Triticum aestivum L.) is largely determined by inflorescence architecture. Zang734 an endemic Tibetan variety that exhibits a rare triple spikelet (TRS) phenotype with significantly increased spikelet/floret number per spike. However, the molecular basis underlying this specific spike morphology completely unknown. Through map-based cloning, causal genes for TRS trai...

ژورنال: علوم آب و خاک 2008
رضائی, عبدالمجید , یوسفی‌آذر, معصومه ,

To improve a complex character such as yield with low heritability, the use of indirect selection through other characters and a selection index based on different effective traits is recommended. This study was conducted to evaluate different selection methods by using 23 F2:4 wheat lines derived from the cross of Virmarin (susceptible cultivar) and Sardari (tolerant cultivar) at Research Farm...

رضائی, عبدالمجید , یوسفی‌آذر, معصومه ,

To improve a complex character such as yield with low heritability, the use of indirect selection through other characters and a selection index based on different effective traits is recommended. This study was conducted to evaluate different selection methods by using 23 F2:4 wheat lines derived from the cross of Virmarin (susceptible cultivar) and Sardari (tolerant cultivar) at Research Farm...

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