In order to investigate the effect of natural zeolite super absorbent and selenium on the morphophysiological characteristics of canola varieties at different moisture regimes, a research was performed during 2009 and 2010 growing seasons in the Factorial split plot experiment on the bases of Randomized Complete Block Design (RCBD) with three replications in Seed and Plant Improvement institute, Karaj, Iran. Where two levels of irrigation factors , including common area irrigation (40 % soil moisture content ) and lack of irrigation after giving the sheath , Zeolite factor at zero and 15 tons per hectare and selenium factor at three levels : zero, 10 and 20 grams per liter sodium selenate in factorial main plots and variety of factors at three levels Kraj1, RGS003 and Karaj3 were in the sub plots. The results showed that the simple effect of irrigation , zeolite and varieties and was also a significant triple interaction on all traits tested(P<0.01). In drought conditions and lack of application of zeolite and selenium, RGS003 varieties showed significant superiority compared to other cultivars. Varieties of Karj 3 in terms of normal irrigation, zeolite consumption of 15 tons per hectare , and spraying 20 grams per liter sodium Selenate , was produced the lowest leakage of intracellular material and the highest amount of chlorophyll a, chlorophyll b, total chlorophyll , Grain yield and biological yield, moreover, in all conditions tested, the lowest leak intracellular material was allocated to these varieties.
