نتایج جستجو برای: tolerance of stress
تعداد نتایج: 21236136 فیلتر نتایج به سال:
Heat stress is one of the most important weather phenomena that has caused destructive damaged many on agricultural crops, such as strawberries. For this purpose, five temperature treatments (control (23±2 days/16±2 nights), 30, 35, 40 and 45 °C) and two levels of mycorrhizal fungi (presence Funeliformis mosseae or absence) and tow cultivars of strawberry (Paros and Queen Elisa) as a factorial ...
Background: The aim of present study was to determine the influence of stress management on affective control and distress tolerance in mothers of children with sensory-motor disabilities. Methods: This current study was a study with pretest-posttest and treatment group. The thirty mothers of children with sensory-motor disabilities were selected from sensory-motor disabilities center in Qum...
cold stress during the beginning of the season usually causes damage to rice plants in the north of iran. in this study, the expression of four genes namely osp5cs2, osttp1, oscoin and oslti6a, was studied in 14-day-old seedlings of a cold tolerance pr genotype and a cold sensitive hashemi variety during cold stress (5°c for 24h) by means of differential display method. pcr products were quanti...
In order to study the genetic diversity of 75 Iranian rice genotypes (45 Iranian land race, 25 improved cultivars, and 5 exotic cultivars) with respect to their salinity tolerance at seedling stage and to determine tolerance indices, based on biomass, genotypic code and Na+/K+ ratio a factorial experiment in randomized complete block design with three replications was conducted under control an...
the process of adaptation to cold is an important mechanism in wheat cultivars to tolerate cold stress. this work was aimed to calrify the relationship between vernalization requirement with cold tolerance by assessing physiological changes in cold susceptible spring and tolerant winter wheat (triticum aestivum, cvs. kohdasht and cheyyene, respectively) in environmentally controlled conditions,...
introduction of new indices to identify relative drought tolerance and resistance in wheat genotypes
salinity and flooding are as two very important factors of soil degradation. they often occur together and cancause severe damage to plants. however, plant response to environmental stresses may vary with growth stage atwhich exposure occurs. a pot study was conducted in 2005-2006 in northern aq qala (northern iran) to studycombine effects of waterlogging and soil salinity at different growth s...
Drought is one of the most common stresses experienced by plants and limits plant growth throughout the world, especially in the arid and semi-arid areas. In this research, the effect of vermicompost on olive (Olea europaea L. cv. Zard) morpho-physiological traits and drought tolerance was investigated. A factorial experiment was conducted in completely randomized design with two factors, inclu...
chickpea (cicer arietinum l.) is mainly cultivated in arid and semi-arid agricultural systems. drought stress is a major factor delimiting maximum yield. this research evaluated the effects of drought stress treatments on expression of cu/znsod as a gene involving in drought tolerance by real time pcr technique. to find the probable relationship between the molecular and physiological effects o...
Drought stress is one of the major abiotic stresses that limits rice productivity in the world. In this study 83 diverse rice genotypes were evaluated under reproductive-stage drought stress and non-stress conditions in a completely randomized design with three replications. Eleven well known stress tolerance and susceptibility indices were calculated based on the grain yield under stress and n...
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