The most important effect of water stress on plants is that it reduces leaf area and leads to changes in morphology. Decreased results crop yield through the reduction photosynthesis. This study investigates effects decrease seed cotton yield, evapotranspiration (ET), use efficiency (WUE), geometry under different growth periods. plant was divided into three periods (vegetative period (VP), flo...

proportionality of wheat cultivars growth patterns to the area’s agro climatic condition will improve crop production. the objective of this study was identifying the phenology of a wide range of wheat varieties in iran, as well as evaluating the relationship between phenology and drought stress tolerance under late season drought stress. in this experiment, 36 wheat genotypes were studied unde...

The present study was conducted in order to investigate the effect of salicylic acid on growth, yield and macro-elements absorption of fennel in split-plot as base on randomized complete block design (RCBD) with three replications in Tehran, Iran. Irrigation regime as main plot was undergone in 5 levels that included: I1: full irrigation, I2: cut off irrigation at stem elo...

Drought is an important abiotic stress factor limiting crop productivity worldwide and its impact increasing with climate change. Regardless of the plant growth period, drought has a deadly yield-reducing effect on at every stage development. As many environmental stressors, drought-exposed plants trigger series molecular, biochemical, physiological responses to overcome stress. Currently, rese...

Rice (Oryza sativa), a salt-sensitive species, has considerable genetic variation for salt tolerance within the cultivated gene pool. Two indica rice genotypes, FL478, a recombinant inbred line derived from a population developed for salinity tolerance studies, and IR29, the sensitive parent of the population, were selected for this study. We used the Affymetrix rice genome array containing 55,...