نتایج جستجو برای: number of grain per spike

تعداد نتایج: 21194741  

Identifying selection indices is the most important step of a breeding project that aims to improve grain yield. The definition of the selection index is usually done by evaluating the variables in multivariate statistical methods. In the present study, the relationship between grain yield and its components in bread wheat genotypes was determined by multivariate statistical methods. The experi...

Journal: :تولید گیاهان زراعی 0
طیبه جعفریان دانشگاه ایلام علی اکبر مقصودی مود دانشگاه شهید باهنر کرمان

leaf rolling, especially in cereals, mechanisms for reducing the light receiving surface of the leaves to reduce transpiration rate in response to drought caused. to investigate the effect of drought stress on leaf rolling and leaf anatomical characteristics, yield and yield components in field experiment was conducted bahonar university . in this experiment, five varieties of wheat (shole, omi...

Journal: :کشاورزی (منتشر نمی شود) 0
الیاس نیستانی عضو هیئت علمی ایستگاه تحقیقات دیم شمال خراسان، خراسان - ایران‏ علی‎ ‎اکبر محمودی عضو هیئت علمی ایستگاه تحقیقات دیم شمال خراسان، خراسان - ایران‏ فاطمه رحیم نیا کارشناسی ارشد اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی بروجرد، لرستان - ایران‏

this experiment was conducted using a randomized complete block design with three ‎replications with 10 barley cultivars in dryland research station of northern khorasan (shirvan) ‎in 2004-2005 growing season. results indicated that there was significant differences among the ‎lines in terms of the stand percentage, days to emergence, days to heading, days to maturity, plant ‎height, number of ...

Journal: :به نژادی گیاهان زراعی و باغی 0
مهدی تقی زادگان دانش آموخته کارشناسی ارشد اصلاح نباتات گروه به نژادی و بیوتکنولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز مجید نوروزی دانشیار گروه به نژادی و بیوتکنولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز سعید اهری زاد استاد گروه به نژادی و بیوتکنولوژی گیاهی، دانشکده کشاورزی، دانشگاه تبریز، تبریز

to identify the high yielding lines with optimal characteristics, 40 recombinant inbred lines derived from a cross between ‘norstar’ (winter wheat) and ‘zagros’ (spring wheat) cultivars were examined using a randomized complete block design with three replications in 2014 at the research station of faculty of agriculture, university of tabriz, iran. the measured characters consisted of peduncle...

In order to study the relationship between morphological and agronomic characteristics like grain yield in barley, and to obtain better knowledge of the effective attributes on barley, an experiment was conducted at the Agricultural Research Station of Ghachsaran in randomized complete block design with two replications on 18 barley lines. Results showed that some characteristics such as days t...

Journal: :تولید گیاهان زراعی 0

with increasing the world population, and needing to feed it, the yield enhancement of cereals crops is of the most important approaches meet this target, which is achieved via identifying the effective factors underlay yield of cereals like wheat. this experiment was conducted to evaluate the grain yield and its association with some contributed traits in a doubled-haploid (dh) wheat populatio...

Journal: :journal of agricultural science and technology 0
a. barati department of plant breeding and biotechnology, faculty of agriculture, university of tabriz, islamic republic of iran. m. moghaddam department of plant breeding and biotechnology, faculty of agriculture, university of tabriz, islamic republic of iran. s. a. mohammadi department of plant breeding and biotechnology, faculty of agriculture, university of tabriz, islamic republic of iran. h. a. qhazvini seed and plant improvement institute, agricultural research, education and extension organization (areeo), karaj, iran. b. sadeghzadeh dryland agricultural research institute, agricultural research, education and extension organization (areeo), maragheh, iran.

salinity tolerance is a genetically and physiologically complex trait, controlled by quantitative trait loci (qtls). in order to map the qtls associated with agronomic and physiological traits, 149 doubled haploid lines derived from a cross between clipper (salt susceptible) and sahara 3771 (salt tolerant) barley genotypes were evaluated under natural saline-stress and non-stress conditions usi...

Journal: :تولید گیاهان زراعی 0

this research was conducted to study the effects of different salinity levels and exposure times on grain yield and yield components in a green-house experiment at gorgan university of agricultural science and natural resources during 2007- 2008 growing season. a factorial sand culture experiment with three completely randomized replications was used. salinity levels were -0.002, -0.25, -0.50, ...

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...

ژورنال: علوم آب و خاک 2008
ارزانی, احمد , فراهانی , الهام ,

  An experiment was conducted to investigate the heterosis in 12 F1 hybrids of durum wheat using agronomic and morphological traits. Parents were selected according to the estimated genetic distances based on the results of a two-year field experiment, which were then crossed to produce F1 hybrids. Twenty-three genotypes (including 11 parents and 12 hybrids) were evaluated using a randomized co...

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