نتایج جستجو برای: hordeum spontaneum
تعداد نتایج: 4602 فیلتر نتایج به سال:
barley belongs to the poaceae which is the largest monocotyledon family. plastid single-copy gene acetyl-coa carboxylase (accase) is the first step in the biosynthesis of fatty acids and therefore, it is used to study the phylogenetic relationships, evolutionary and systematic of grasses. in this study, for the first time, phylogenetic relationship of eight species of hordeum genus from iran in...
This article represents some current thinking and objectives in the use of molecular markers to abiotic stress tolerance. Barley has been chosen for study as it is an important crop species, as well as a model for genetic and physiological studies. It is an important crop and, because of its well-studied genetics and physiology, is an excellent candidate in which to devise more efficient breedi...
The occurrence of an extra-plastidial isoform of ADP-glucose (Glc) pyrophosphorylase (AGPase) among starch-storing organs was investigated in two ways. First, the possibility that an extra-plastidial isoform arose during the domestication of cereals was studied by comparing the intracellular distribution of enzyme activity and protein in developing endosperm of noncultivated Hordeum species wit...
a greenhouse study was conducted to investigate the effects of nitrogen (n) on wild barley (hordeum spontaneum koch) interference with winter wheat (triticum aestivum var. pishtaz) by an additive series experiment. the experiment was conducted in a split plot design with 3 replications. wheat plant height losses were on average 30, 10, and 10% in a wild barley density of 16 plants per pot with ...
The wild ancestral form of barley, Hordeum vulgare ssp. spontaneum, is a valuable source for gene enrichment of cultivated barley. The purpose of this work was to study the area of distribution as well as the extent and structure of genetic variation of wild barley populations grown in Kazakhstan. It was found that distribution of wild barley populations in Kazakhstan is restricted to the most ...
wheat (triticum aestivum) growth and yield are depressed by physical and chemical interference of weeds. recently, wild barley (hordeum spontaneum) population has increased in wheat fields of many provinces of iran. since, little is known about the allelopathic effects of wild barley residues in soil, greenhouse studies were conducted to examine the effects of soil amended residues of wild barl...
این پژوهش در دو مطالعه جداگانه با هدف بررسی تنوع ژنتیکی گونه های جنس جو در سه محیط رطوبتی مختلف انجام گرفت. در مطالعه اول 90 ژنوتیپ جو زراعی (hordeum vulgare) و جو وحشی اسپانتانئوم (h. vulgare ssp. spontaneum ) و در مطالعه دوم 64 ژنوتیپ از 15 گونه وحشی جو در سال زراعی 92-93 در سه محیط عدم تنش، تنش خشکی متوسط و تنش خشکی شدید از نظر عملکرد و صفات مورفولوژیک ارزیابی شدند. در هر دو مطالعه نتایج حاک...
Wild barley contains a wide genetic diversity and therefore is adaptable to all kinds of harsh environments. The aim of this research was to determine the extent of drought stress adaptation within Hordeum spontaneum L. genotypes from different climates of Iran. From the primary population of 193 genotypes, a core set consisting of 18 genotypes, were selected based on the highest squared Euclid...
ژن تک نسخه پلاستیدی استیل کوآنزیمآ، اولین عامل کاتالیزی در بیوسنتز اسیدهای چرب، در مطالعه روابط فیلوژنتیکی، تکاملی و سیستماتیکی گندمیان توانایی زیادی دارد. احتمال اینکه، ژنهای تک نسخه و کم نسخه دستخوش تکامل گروهی شوند کم است، بنابراین ACC ژن مهمی جهت مطالعه مبدأ و تکامل پلی پلوییدها محسوب میشود. در این تحقیق رابطه فیلوژنتیکی هفت گونه و زیرگونهی جوهای بومی ایران، (Hudson Hordeum m...
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