نتایج جستجو برای: gmp geometric mean productivity
تعداد نتایج: 760104 فیلتر نتایج به سال:
Breeding for environmental stress is one of the most important goals in plant breeding. Among stresses, drought stress has high influencing on limitation of maize production. Therefore, in order to find the best drought tolerant hybrids, 38 maize hybrids were planted in two separate experiments: one with optimum irrigation (control) and another with water stress at grain-filling stage in Moghan...
تنوع ژنتیکی و تحمل به خشکی ژنوتیپ‌های کنجد از طریق مطالعۀ شاخص‌های تحمل به خشکی و ترسیم بایپلات با آزمایشی در قالب طرح بلوکهای کامل تصادفی با 12 تیمار و 3 تکرار، در مزرعۀ تحقیقاتی دانشکدۀ کشاورزی دانشگاه بیرجند در سال زراعی 1389ـ 1390 بررسی شد. تیمار مورد نظر در 12 سطح شامل ژنوتیپ‌های بیرجند، خوسف، تربت جام، رقم سینتتیک (صفیآباد)، داراب 1، داراب 14، بندر‌عباس، یلووایت، دشتستان 2، دشتستان 5...
in order to evaluate the utilization ability of drought resistance indices such as: yield index (yi), yield stability index (ysi), stress susceptibility index (ssi), tolerance (tol), mean productivity (mp), geometric mean productivity (gmp) and stress tolerance index (sti) in sunflower hybrids, three separate experiments were conducted as randomized complete block design at the research field o...
indian mustard is one of the most drought tolerant crops within brassica genus which could be used in semi dry areas of iran. 20 cultivars and lines of indian mustard were studied as complete blocks design with three replications in two different humidity regimes in oroumieh research station during 2013-2014 growing season. analysis of variance showed that the most studied agronomic characteris...
the complexity of the genetic control of drought tolerance makes inevitable using of molecular methods with biometric approaches to its improvement in plants. present study was conducted by 121 advanced lines and varieties of soybean under two moisture levels, normal and drought stress with 21 microsatellite markers linked to drought tolerance in two regions, namely, rasht and gonbad-kavous. gr...
Among different environmental stresses, drought is of great importance that induces a highly negative effect on crop production. In order to evaluate drought tolerance in dryland wheat genotypes, 36 genotypes were studied in a randomized complete block design with three replications under rainfed (drought stress) and supplemental irrigation conditions during 2016–2017 growing season in Research...
تولید و معرفی ارقام پرمحصول و مقاوم به خشکی در محصولات زراعی یکی از راهکارهای موثری است که در تلفیق با سایر روش‌های مدیریت کم آبی می‌تواند تأثیر این پدیده را به حداقل برساند. تحقیق حاضر با این هدف روی 18 ژنوتیپ برتر آزمایشات مقایسه عملکرد به همراه دو شاهد سرداری و آذر-2 در دو منطقه کرمانشاه (ایستگاه سرارود) و مراغه (ایستگاه مراغه) به‌مدت سه سال زراعی (84-1381) و در شرایط رطوبتی متفاوت (دیم، یک...
Wheat grain yield reduction occurs in most wheat growing regions of Iran due to post-anthesis water stress. This research was conducted to evaluate yield and yield components of wheat cultivars in normal irrigation and post anthesis irrigation cut-off conditions as a split-plot arrangement based on a randomized complete block design with three replications during 2015-16 in College of Agricultu...
In this study, different genotypes of faba bean were evaluated for Tolerance index and biochemical compounds under drought stress. 21 Genotypes of faba bean were studied based on RCBD design with three replications in two irrigation treatments (including normal irrigation and drought stress) during two cropping years (2018-2019) at Gorgan Agricultural Research Station. Based on the potential (Y...
Chlorine and sulfate toxicity in water and soils are the main factors limiting growth and yield of most plants. Tolerance and sensitive indexes related to Cl and SO4 in irrigation water and effect of nitrogen fertilizer on barley were evaluated in a completely randomized design with three replications, under greenhouse conditions. Quantity salinity tolerance and susceptibility indices such as M...
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