نتایج جستجو برای: wild barley

تعداد نتایج: 177482  

Journal: Desert 2008
D. Mazaherib H. Ghadiri H. Rahimian H. Zeinali H.M Alizadeh R. Hamidi

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...

Journal: :علوم گیاهان زراعی ایران 0
محمدرضا جمالی مربی، مرکز تحقیقات کشاورزی و منابع طبیعی فارس - زرقان محمد علی باغستانی دانشیار، بخش تحقیقات علف های هرز مؤسسۀ تحقیقات گیاه پزشکی کشور، تهران لادن جوکار مربی، مرکز تحقیقات کشاورزی و منابع طبیعی فارس - زرقان

in order to study the complementary effects of application time of two herbicides sulfosulfuron 75% wg (apyrus) and 75% sulfosulfuron + 5% metsulfuron-methyl (total) and planting wheat density on wild barley (hordeum spontaneum koch.) control, an experiment was conducted in randomized complete blocks design with two-factors during 2012-2013 growing season in zarghan (fars). the first factor was...

Journal: :دانش علف های هرز ایران 0
محمد علی باغستانی محقق کلودل لی میکس استاد دانشگاه گیلز لروکس استاد دانشگاه

the use of more competitive species and cultivars in small grain cereal production may help to develop production systems that require less herbicide. this study was designed to identify root and shoot characteristics of cereal seedlings that would allow distinguishing the more competitive (mc) cultivars from the less competitive (lc) ones. two growth cabinet trials were conducted using four cr...

حسینی فرادنبه, نیره‌السادات, محمودی, سهراب , کریم مجنی, حسن,

A field experiment was conducted to evaluate the interference effects of wild barley (Hordeum spontaneum L.) on wheat (Triticum aestivum L.) yield, in 2009. The effects of different densities of wild barley (0, 25, 50, 75, 100, 125 plants m-2) in interferences with wheat at density of 300 plants m-2 were studied in a completely block design with three replications. Results showed that with incr...

2013
John T. O’Donovan K. Neil Harker George W. Clayton

A study was initiated in 2001at four locations in western Canada to investigate an integrated approach to managing wild oat, the region’s worst weed. The study examined the effects of combining semidwarf or tall barley cultivars with normal or twice-normal barley seeding rates in either continuous barley or a barley–canola–barley–field pea–barley rotation. Herbicides were applied at 25, 50, and...

Journal: :desert 2008
r. hamidi d. mazaherib h. rahimian h.m alizadeh h. ghadiri

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...

2013
Dezhi Wu Shengguan Cai Mingxian Chen Lingzhen Ye Zhonghua Chen Haitao Zhang Fei Dai Feibo Wu Guoping Zhang

A thorough understanding of the mechanisms underlying barley salt tolerance and exploitation of elite genetic resource are essential for utilizing wild barley germplasm in developing barley varieties with salt tolerance. In order to reveal the physiological and molecular difference in salt tolerance between Tibetan wild barley (Hordeum spontaneum) and cultivated barley (Hordeum vulgare), profil...

ابراهیم, فاطمه, ارزانی, احمد, رحیم ملک, مهدی,

Crop wild relatives adaptively diversified for environmental stresses are valuable resources for crop breeding especially for climate change scenarios, supposedly worsening drought and heat conditions. In this study, genetic variation of 54 barley genotypes comprised of 47 H. vulgare spp. spontaneum genotypes collected from west of Iran along with Reyhan cultivar and six F1 hybrids resulted fro...

2014
Mian Zhang Weihua Mao Guoping Zhang Feibo Wu

Tibetan annual wild barley is rich in genetic variation. This study was aimed at the exploitation of new SSRs for the genetic diversity and phylogenetic analysis of wild barley by data mining. We developed 49 novel EST-SSRs and confirmed 20 genomic SSRs for 80 Tibetan annual wild barley and 16 cultivated barley accessions. A total of 213 alleles were generated from 69 loci with an average of 3....

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Fei Dai Eviatar Nevo Dezhi Wu Jordi Comadran Meixue Zhou Long Qiu Zhonghua Chen Avigdor Beiles Guoxiong Chen Guoping Zhang

The Near East Fertile Crescent is well recognized as a primary center of barley origin, diversity, and domestication. A large number of wild barleys have been collected from the Tibetan Plateau, which is characterized by an extreme environment. We used genome-wide diversity array technology markers to analyze the genotypic division between wild barley from the Near East and Tibet. Our results c...

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