نتایج جستجو برای: agropyron complex
تعداد نتایج: 784474 فیلتر نتایج به سال:
Abstract Aims To explore whether grazing-induced legacy effects on plants could benefit adaptation to drought. Methods A water-controlled experiment was conducted in the greenhouse, which with Agropyron cristatum and Carex korshinskyi collected from free-grazing enclosed plots a typical grassland Inner Mongolia. Important Findings We found that A. C. plot were less affected by drought terms of ...
Silicon in forage reduces dry matter digestibility and may reduce grazing preference. Two studies were conducted with the following objectives: (1) to evaluate a method of determining grazing preference, and (2) to characterize the distribution and solubility of silicon in 31 accessions of C-3 grasses and relate these traits to grazing preference and estimated forage digestibility. Forage sampl...
The objective of this study was to test the potential for using a single-entry procedure to revegetate Russian knapweed– and green rabbitbrush–infested rangeland. I hypothesized that simultaneously applying an herbicide and seeding in the fall would produce the highest establishment and growth of desired species. For Russian knapweed, treatments included three seeding rates (zero, low, and high...
هدف از این تحقیق ارزیابی تأثیر سطوح مختلف عناصر مس و سرب بر جوانه زنی و رشد بذور گونه trichophrumagropyron تحت شرایط آزمایشگاهی است. بدین منظور برای بررسی تأثیر این عوامل بر شاخصهای جوانهزنی و رشد بذور این گونه، دو آزمایش در قالب طرح کاملاً تصادفی با پنج تیمار (شاهد، 20، 50، 100 و 150 میلی گرم در لیتر) سولفات مس (cuso4) و نیترات سرب (pb(no3)2) در چهار تکرار انجام شد. با بررسی میزان بذور جوانه...
this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...
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...
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