نتایج جستجو برای: moderately drought class
تعداد نتایج: 462549 فیلتر نتایج به سال:
Water availability is a major limiting factor for wheat (Triticum aestivum L.) production in rain-fed agricultural systems worldwide. Root architecture is important for water and nutrition acquisition for all crops, including wheat. A set of 158 diverse wheat genotypes of Australian (72) and Indian (86) origin were studied for morpho-agronomical traits in field under irrigated and drought stres...
to evaluate the effect of drought stress and foliar application of ascorbic acid on the growth and yield parameters of two varieties of sunflower pilot plant in the province of alborz as a split factorial in a randomized complete block design with four replications and treatments include: water stress (s) in three levels (s1) 70 mm evaporation from pan class a, (s2) 110 mm evaporation from pan ...
Abstract Study of physiological reactions of recombinant inbreed lines (RILs) to drought stress could help to identify the actual drought tolerance mechanisms. In this view a field experiment was conducted to evaluate the effect of drought stress on chlorophyll content , leaf proline content, leaf length, leaf width, leaf area, peduncle length and plant height using 169 RILs, in the two separat...
چکیده کوه آصف در شمال شهر شیراز قرار داشته که بخشی از جنوبباختری زاگرس چینخورده است. ناحیهی زاگرس چینخورده یکی از مناطق فعال زمین ساختی ایران به شمار میآید. در این منطقه سازندهای سنوزوئیک بر اثر فرایندهای تکتونیکی دچار چینخوردگی شدهاند. نتایج بررسیها نشان میدهد که سطح محوری چینخوردگیها در این منطقه دارای روند غالب شمالباختر- جنوب خاور میباشد، یعنی از روند عمومی زاگرس تبعیت میکن...
In order to study the impact of drought stress and planting date on safflower yield and yield components, an experiment was performed in Tabriz region in 2011. The experiment was carried out as split-split plot based on randomized complete block design. The main factor which was applied as split plot includes drought stress with three levels: (S1) 80 ± 3 mm evaporation from basin level of cla...
The assessment of relationships between satellite-derived vegetation indices and meteorological drought improves our understanding of how these indices respond to climatic changes. The combination of climate data and the Normalized Difference Vegetation Index (NDVI) product of Moderate Resolution Imaging Spectroradiometer (MODIS) imagery provided an opportunity to evaluate the impact of d...
Drought and grazing rangelands play an important role in changing the structure of vegetation and losing the biodiversity of natural ecosystems. In this research, in order to determine the effects of drought and livestock grazing on the vegetation structure of rangelands located in the Nakhab Forest of South Khorasan Province, species abundance, biodiversity, and range condition and trend were ...
a 'worst case' laboratory method was employed for evaluating total effect of four pesticides (imidacloprid, dichlorvos, pymetrozine and abamectin) on the nymphs mortality and adults reproduction in orius albidipennis reuter (hemiptera: anthocoridae). the bioassays were carried out in laboratory using drum cell method, under controlled conditions of: 27±1?c, rh of 65±5% and 16-h photo ...
Sesame is one of the plants that due to the high content (47-52%) and high quality (low cholesterol and some antioxidants) its seed oil, important role has in human health. An experimental with objective to evaluate eight local landraces of sesame to drought stress based on grain yield and drought tolerance indices using factorial split plot design was conducted with three replications in resea...
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