Abstract :
: In order to evaluate the effects of of Response of Safflower physiological characteristics to water stress, application of salicylic acid and zeolite, this study was carried out in field of Arak university in Markazi province in 2010. A split factorial design based randomized complete block with four replications was used. In this experiment water stress as a major factor in three levels according to [I0 = Complete Irrigation (control), I1 = 85 % of the plant water requirement, I2 = 70 % of the plant water requirement] in the main plots and consume different amounts of zeolite at three levels [Z0 = without zeolite (control), Z1 = zeolite consumed 4 t ha-1, Z2 = zeolite consumed 8 t ha-1] and two levels of salicylic acid [not consumed SA0 = without salicylic acid SA1 = 300 ppm consumption of salicylic acid (sprayed)] as a factorial combination of factors, sub-sub plots were placed. The results showed that the effect of different levels of water stress on traits such as: Stem diameter, Harvest index of un-direct boll, Relative water content, Water saturation deficit and Percent of rate water loss and characters such as: Economical yield of main boll and Days to maturity was significant at 5% statistically level. Also, different levels of zeolite consumption on the characteristics such as: Economical yield of main boll, Water saturation deficit and Rate water loss was significant at 1% statistically level. also taking salicylic acid on the plants, on traits such as: 1000 grain weight of main boll and Water saturation deficit was significant in the statistical level of 1 and 5% respectively.
