نتایج جستجو برای: wheat collections

تعداد نتایج: 88782  

Journal: :journal of agricultural science and technology 2014
r. tahir h. bux a. g. kazi a. rasheed a. a. napar

rye (secale cereale) chromosome 1rs harbors multiple genes including lr26, sr31, yr9 and pm8 conferring disease resistance and tolerance to abiotic stresses. the introgression of the rye 1r chromosome short arm has enormously contributed to increase of genetic diversity in wheat. utilization of such translocations in breeding programs demands identification of wheat germplasm possessing the whe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...

Journal: :Phytopathology 2000
J A Kolmer J Q Liu

ABSTRACT Collections of Puccinia triticina, the wheat leaf rust fungus, were obtained from Great Britain, Slovakia, Israel, Germany, Australia, Italy, Spain, Hungary, South Africa, Uruguay, New Zealand, Brazil, Pakistan, Nepal, and eastern and western Canada. All single-uredinial isolates derived from the collections were tested for virulence polymorphism on 22 Thatcher wheat lines that are nea...

Journal: :The plant genome 2017
Kebede T Muleta Peter Bulli Zhiwu Zhang Xianming Chen Michael Pumphrey

Harnessing diversity from germplasm collections is more feasible today because of the development of lower-cost and higher-throughput genotyping methods. However, the cost of phenotyping is still generally high, so efficient methods of sampling and exploiting useful diversity are needed. Genomic selection (GS) has the potential to enhance the use of desirable genetic variation in germplasm coll...

2015
A J Johnson R H Shukle M-S Chen S Srivastava S Subramanyam B J Schemerhorn P G Weintraub H E M Abdel Moniem K L Flanders G D Buntin C E Williams

Evidence is emerging that some proteins secreted by gall-forming parasites of plants act as effectors responsible for systemic changes in the host plant, such as galling and nutrient tissue formation. A large number of secreted salivary gland proteins (SSGPs) that are the putative effectors responsible for the physiological changes elicited in susceptible seedling wheat by Hessian fly, Mayetiol...

2018
Shenghui Zhou Jinpeng Zhang Yonghe Che Weihua Liu Yuqing Lu Xinming Yang Xiuquan Li Jizeng Jia Xu Liu Lihui Li

Agropyron Gaertn. (P genome) is a wild relative of wheat that harbours many genetic variations that could be used to increase the genetic diversity of wheat. To agronomically transfer important genes from the P genome to a wheat chromosome by induced homoeologous pairing and recombination, it is necessary to determine the chromosomal relationships between Agropyron and wheat. Here, we report us...

2012
Xiaojie Chen Donghong Min Tauqeer Ahmad Yasir Yin-Gang Hu

To ascertain genetic diversity, population structure and linkage disequilibrium (LD) among a representative collection of Chinese winter wheat cultivars and lines, 90 winter wheat accessions were analyzed with 269 SSR markers distributed throughout the wheat genome. A total of 1,358 alleles were detected, with 2 to 10 alleles per locus and a mean genetic richness of 5.05. The average genetic di...

2016
Ming-Jian Hu Hai-Ping Zhang Kai Liu Jia-Jia Cao Sheng-Xing Wang Hao Jiang Zeng-Yun Wu Jie Lu Xiao F. Zhu Xian-Chun Xia Gen-Lou Sun Chuan-Xi Ma Cheng Chang

Thousand-grain weight (TGW) of wheat (Triticum aestivum L.) contributes significantly to grain yield. In the present study, a candidate gene associated with TGW was identified through specific-locus amplified fragment sequencing (SLAF-seq) of DNA bulks of recombinant inbred lines (RIL) derived from the cross between Jing 411 and Hongmangchun 21. The gene was located on chromosome 7A, designated...

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