نتایج جستجو برای: harmonic mean (harm) were estimated based on grain yield under stress (ys) and non

تعداد نتایج: 19118167  

Journal: :به نژادی گیاهان زراعی و باغی 0
زهراسادات طاهری پورفرد دانشجوی دکتری اصلاح نباتات، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران علی ایزدی دربندی دانشیار، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان دانشگاه تهران، پاکدشت، ایران حبیب اله قزوینی دانشیار، بخش غلات، مؤسسۀ تحقیقات و اصلاح نهال و بذر، کرج، ایران محسن ابراهیمی دانشیار، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان دانشگاه تهران، پاکدشت، ایران سید محمد مهدی مرتضویان استادیار، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان دانشگاه تهران، پاکدشت، ایران

abstract: evaluation of drought tolerance for 20 barley genotypes were conducted under normal irrigation and terminal stress condition by withholding irrigation at the time of 50% flowering. drought effect on grain yield and plant total mass traits was studied and eight of stress indices including stress tolerance index (sti), stress tolerance (tol), stress susceptibility index (ssi), mean prod...

Journal: :چغندرقند 0
سعید صادق زاده حمایتی عضو هیات علمی پرویز فصاحت عضو هیئت علمی موسسه تحقیقات چغندرقند

current study aimed at determining the most reliable drought tolerant criteria for identification of sugar beet genotypes. a split plot design based on randomized complete block design with three replications was applied at motahari research station, karaj, iran in 2012. two irrigation treatments including normal irrigation after 80-90 mm and irrigation after 270 mm evaporation (stress conditio...

Sesame is one of the plants that due to the high content (47-52%) and high quality (low cholesterol and some antioxidants) its seed oil, important role has in human health. An experimental with objective to evaluate eight local landraces of sesame to drought stress based on grain yield and drought tolerance indices using factorial split plot design was conducted with three replications in resea...

Journal: :پژوهش های حبوبات ایران 0
مسلم فتحی محمدرضا بی همتا ناصر مجنون حسینی علی اکبر شاه نجات بوشهری هادی محمدعلی پوریامچی

in order to study and determine the most effective traits, drought tolerance indices and identify tolerant genotypes in terminal drought stress on the cowpea, an experiment was carried out based on an augment design in two separate conditions in the karaj farm, faculty of agriculture, tehran university in 2009. drought stress was imposed by cutting irrigation after flowering against normal irri...

2012
Mahdi Zare

Drought is an important factor limiting crop production in arid and semi-arid conditions. Drought indices which provide a measure of drought based on yield loss under drought condition in comparison to normal condition was used for screening drought-tolerant genotypes. This study was conducted to determine drought tolerant genotypes with high yield in stress and non-stress conditions. Ten barle...

Journal: :international journal of advanced biological and biomedical research 2013
ezatollah farshadfar mohammad mehdi poursiahbidi seyed mehdi safavi

one of the possible ways to ensure future food needs of an increasing world population involves the better water use through the development of crop varieties which need less water and are more tolerant to drought. in order to study the response of twenty landraces of bread wheat to drought stress, an experiment was conducted in a randomized complete block design with three replications under t...

Journal: :Genetics and molecular research : GMR 2014
C B Menezes C A Ticona-Benavente F D Tardin M J Cardoso E A Bastos D W Nogueira A F Portugal C V Santos R E Schaffert

Twenty-five cultivars of grain sorghum [Sorghum bicolor (L.) Moench] were examined under both drought stress and normal conditions in 4 experiments. In each condition, genotypes were evaluated in a factorial experiment using a randomized complete block design with 3 replications. Eight drought tolerance indices including stability tolerance index, mean productivity (MP), geometric MP, harmonic ...

Ezatollah Farshadfar, Mohammad Mehdi Poursiahbidi Seyed Mehdi Safavi

One of the possible ways to ensure future food needs of an increasing world population involves the better water use through the development of crop varieties which need less water and are more tolerant to drought. In order to study the response of twenty landraces of bread wheat to drought stress, an experiment was conducted in a randomized complete block design with three replications under t...

Ezatollah Farshadfar, Mohammad Mehdi Poursiahbidi Seyed Mehdi Safavi

One of the possible ways to ensure future food needs of an increasing world population involves the better water use through the development of crop varieties which need less water and are more tolerant to drought. In order to study the response of twenty landraces of bread wheat to drought stress, an experiment was conducted in a randomized complete block design with three replications under t...

Ezatollah Farshadfar, Mohammad Mehdi Poursiahbidi Seyed Mehdi Safavi

One of the possible ways to ensure future food needs of an increasing world population involves the better water use through the development of crop varieties which need less water and are more tolerant to drought. In order to study the response of twenty landraces of bread wheat to drought stress, an experiment was conducted in a randomized complete block design with three replications under t...

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