نتایج جستجو برای: poaceae

تعداد نتایج: 6669  

Journal: :Annals of botany 2005
B G Murray P J De Lange A R Ferguson

BACKGROUND AND AIMS Little information is available on DNA C-values for the New Zealand flora. Nearly 85 % of the named species of the native vascular flora are endemic, including 157 species of Poaceae, the second most species-rich plant family in New Zealand. Few C-values have been published for New Zealand native grasses, and chromosome numbers have previously been reported for fewer than ha...

Journal: :Plant physiology 2004
Cynthia E Gallagher Paul D Matthews Faqiang Li Eleanore T Wurtzel

Despite ongoing research on carotenoid biosynthesis in model organisms, there is a paucity of information on pathway regulation operating in the grasses (Poaceae), which include plants of world-wide agronomic importance. As a result, efforts to either breed for or metabolically engineer improvements in carotenoid content or composition in cereal crops have led to unexpected results. In comparis...

2015
Catharina Meinen Rolf Rauber

Root discrimination of species is a pre-condition for studying belowground competition processes between crop and weed species. In this experiment, we tested Fourier transform mid-infrared (FT MIR)-attenuated total reflection (ATR) spectroscopy to discriminate roots of closely related crop and weed species grown in the greenhouse: maize/barnyard grass, barley/wild oat, wheat/blackgrass (Poaceae...

2017
Peng-Cheng Yao Hai-Yan Gao Ya-Nan Wei Jian-Hang Zhang Xiao-Yong Chen Hong-Qing Li

Environmental conditions in coastal salt marsh habitats have led to the development of specialist genetic adaptations. We evaluated six DNA barcode loci of the 53 species of Poaceae and 15 species of Chenopodiaceae from China's coastal salt marsh area and inland area. Our results indicate that the optimum DNA barcode was ITS for coastal salt-tolerant Poaceae and matK for the Chenopodiaceae. Sam...

ژورنال: :مجله گیاهشناسی ایران 2014
سرور رحمانیان حجت الله سعیدی مصطفی اسدی محمدرضا رحیمی نژاد

بر مبنای بازبینی تاکسونومیک، جنس eremopoa و منابع مربوط به این جنس با دارابودن چهار گونه و سه واریته در ایران به رسمّیت شناخته می شود.که یک واریته (e. persica var. oxyglumis) به عنوان ترکیب جدید به فلور ایران اضافه می شود.

ژورنال: :مجله گیاهشناسی ایران 2009
منصوره خداشناس

واریته  a. lagopoides var. mesoptamica به عنوان گزارشی جدید برای ایران معرفی می شود. این واریته با داشتن برگهای کوچک و سفت و شق، ارتفاع کم ساقه و گل آذین کوچک و کروی  تشخیص داده می شود. a. pungens var. hirtulus نیز به واسطه داشتن کرکهای بلند و متراکم روی سطح پهنک برگها به عنوان یک واریته مجزا از ایران گزارش می شود. همچنین یک ترکیب جدید نیز با نام aeluropus lagopoides var. repens   بر اساس نام  ...

Journal: :journal of rangeland science 2015
hossein arzani anvar sanaei alen v. barker sahar ghafari javad motamedi

chemical assessments of forage clearly determine the forage quality; however, traditional methods of analysis are somehow time consuming, costly, and technically demanding. near infrared reflectance spectroscopy (nirs) has been reported as a method for evaluating chemical composition of agriculture products, food, and forage and has several advantages over chemical analyses such as conducting c...

Journal: :Casopis slezského zemského muzea (A) 2011

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