نتایج جستجو برای: grains per spike

تعداد نتایج: 483117  

Journal: :Plant Methods 2021

Abstract Background Wheat spike architecture is a key determinant of multiple grain yield components and detailed examination morphometric traits beneficial to explain wheat the effects differing agronomy genetics. However, quantification has been very limited because it relies on time-consuming manual measurements. Results In this study, using X-ray Computed Tomography imaging, we proposed met...

2015
Soshma Jan Fida Mohammad Fahim Ullah Khan

An experiment comprising of 24 wheat genotypes was undertaken during 2011-12, at New Developmental Research Farm, The University of Agriculture Peshawar, to elucidate information on the nature and magnitude of genetic variability, index of transmissibility and assessing the level of genetic improvement of the quantitative characters. The experimental material comprising 19 F3 populations along ...

Journal: :علوم گیاهان زراعی ایران 0
زهرا شیرکوند دانشجوی سابق کارشناسی ارشد پردیس ابوریحان دانشگاه تهران محسن ابراهیمی استادیار پردیس ابوریحان دانشگاه تهران محمدرضا بی همتا استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران رضا امیری دانشیار پردیس ابوریحان دانشگاه تهران گودرز نجفیان دانشیار پژوهشی موسسه تهیه و اصلاح نهال و بذر حسین علی رامشینی استادیار پردیس ابوریحان دانشگاه تهران

drought stress is one of the most important environmental stresses that affect yield of bread wheat strongly. considering that the yield achieved with the interaction of a large number of plant traits and environment, so the morphological and agronomical traits, can serve as selection criteria under environmental conditions. by genetic analysis and estimation of inheritance and mode of gene act...

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: :تولید گیاهان زراعی 0

water logging stress is one of the most important factors which affect wheat production particularly in western regions of golestan province. this experiment was carried out in order to evaluate of six genotypes (n-81-18, arta, moghan, n-80-19, urwyt-82-11 and urwyt-82-17) of bread wheat in water logging condition at 2006-2007 growing season in gorgan agricultural research station. the experime...

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...

2016
Zifeng Guo Gustavo A Slafer Thorsten Schnurbusch

Spike fertility traits are critical attributes for grain yield in wheat (Triticum aestivum L.). Here, we examine the genotypic variation in three important traits: maximum number of floret primordia, number of fertile florets, and number of grains. We determine their relationship in determining spike fertility in 30 genotypes grown under two contrasting conditions: field and greenhouse. The max...

Journal: :The plant genome 2017
Yaopeng Zhou Benjamin Conway Daniela Miller David Marshall Aaron Cooper Paul Murphy Shiaoman Chao Gina Brown-Guedira José Costa

Wheat ( L.) spike characteristics determine the number of grains produced on each spike and constitute key components of grain yield. Understanding of the genetic basis of spike characteristics in wheat, however, is limited. In this study, genotyping-by-sequencing (GBS) and the iSelect 9K assay were used on a doubled-haploid (DH) soft red winter wheat population that showed a wide range of phen...

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...

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