نتایج جستجو برای: علفگندمی تاجدار agropyron cristatum

تعداد نتایج: 708  

2016
Mingjie Lu Yuqing Lu Huanhuan Li Cuili Pan Yong Guo Jinpeng Zhang Xinming Yang Xiuquan Li Weihua Liu Lihui Li

Wheat-Agropyron cristatum 7P disomic addition line Ⅱ-5-1, derived from the distant hybridization between A. cristatum (2n = 4x = 28, PPPP) and the common wheat cv. Fukuhokomugi (Fukuho), displays numerous desirable agronomic traits, including enhanced thousand-grain weight, smaller flag leaf, and enhanced tolerance to drought. In order to transfer these traits into common wheat, Ⅱ-5-1 was induc...

2017
Zhi Zhang Liqiang Song Haiming Han Shenghui Zhou Jinpeng Zhang Xinming Yang Xiuquan Li Weihua Liu Lihui Li

Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most destructive diseases of wheat (Triticum aestivum L.) worldwide. Agropyron cristatum (L.) Gaertn. (2n = 28, PPPP), one of the wild relatives of wheat, exhibits resistance to stripe rust. In this study, wheat-A. cristatum 6P disomic addition line 4844-12 also exhibited resistance to stripe rust. To identify the s...

Journal: :iranian journal of science and technology (sciences) 2004
m. yousofi

flow cytometry (fcm) was used to determine the ploidy levels of six different populationsof agropyron cristatum (l.) gaertn. (poaceae) in iran, using a diploid cultivated barley (hordeumvulgare l.) as an internal reference. according to flow cytometric data, tetraploid (2n = ± 28) andhexaploid (2n = ± 42) levels were detected among the examined populations and these results weresupported by chr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1392

به منظور بررسی تاثیر پرتودهی بذر با اشعه گاما و پلی اتیلن گلیکول 6000 بر خصوصیات جوانه زنی و برخی پارامترهای فیزیولوژیک دو گونه secale montanum guss.و (l.) gaertn agropyron cristatum ، آزمایشی به صورت فاکتوریل در قالب طرح کاملاً تصادفی انجام شد. بذرهای گونه های مورد تحقیق تحت تابش پرتو گاما با سطوح 0، 20، 40، 60، 100 و 150 گری و محلول پلی اتیلن گلیکول 6000 در سطوح 0، 4- و 8- بار در سه تکرار در ش...

2017
Shenghui Zhou Baiqiang Yan Fei Li Jinpeng Zhang Jing Zhang Huihui Ma Weihua Liu Yuqing Lu Xinming Yang Xiuquan Li Xu Liu Lihui Li

Agropyron cristatum, which is a wild grass of the tribe Triticeae, grows widely in harsh environments and provides many desirable genetic resources for wheat improvement. However, unclear interspecific phylogeny and genome-wide variation has limited the utilization of A. cristatum in the production of superior wheat varieties. In this study, by sequencing the transcriptome of the representative...

این تحقیق به منظور بررسی کاربرد تکنیک­های همزمان باکتری­های تجزیه­گر و گیاه پالایی برای پاکسازی خاک آلوده به نفت در شرایط گلخانه انجام گرفت. به این منظور دو گیاه مرتعی Agropyron cristatum و Achillea millefolium به همراه تیمارهای بدون وبا تلقیح باکتری­های تجزیه­گر B. Megaterium و B. subtilis  بصورت گلدانی برای خاک اطراف آلوده نفتی پالایشگاه جنوب تهران با درصد آلودگی 5/3 و 7 درصد وزنی، بکار برده ...

2016
Qingfeng Li Yuqing Lu Cuili Pan Miaomiao Yao Jinpeng Zhang Xinming Yang Weihua Liu Xiuquan Li Yajun Xi Lihui Li

Creation of wheat-alien disomic addition lines and localization of desirable genes on alien chromosomes are important for utilization of these genes in genetic improvement of common wheat. In this study, wheat-Agropyron cristatum derivative line 5113 was characterized by genomic in situ hybridization (GISH) and specific-locus amplified fragment sequencing (SLAF-seq), and was demonstrated to be ...

Journal: :Annals of botany 2013
Haiyan Ren Zhuwen Xu Wenhao Zhang Lin Jiang Jianhui Huang Shiping Chen Lixin Wang Xingguo Han

BACKGROUND AND AIMS Leaf longevity is an important plant functional trait that often varies with soil nitrogen supply. Ethylene is a classical plant hormone involved in the control of senescence and abscission, but its role in nitrogen-dependent leaf longevity is largely unknown. METHODS Pot and field experiments were performed to examine the effects of nitrogen addition on leaf longevity and...

2003
Scott D. Wilson Meelis Pärtel

Introduced perennial grasses are one of the greatest constraints to prairie restoration. Herbicides suppress but do not eliminate introduced grasses, so we explored the interaction of herbicide with two additional controls: heavy clipping (to simulate grazing) and competition from native species. A 50-year-old stand of the introduced perennial grass Agropyron cristatum (crested wheatgrass) in t...

Journal: :journal of medicinal plants and by-products 0

this study was conducted to investigate allelopathic effect of the essential oil of artemisia herba-alba asso., on seed germination characteristics of  agropyron desertorum and agropyron cristatum in a laboratory experiment. essential oil was extracted from the aerial parts of artemisia herba-alba using a clevenger-type apparatus. the volatile chemical compositions of artemesia herba-alba were ...

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