The effect of water stress and micro elements on physiological aspects of rapeseed cultivars (Brassica napus)

In order to study the effect of water stress and Micro elements (B. Zn. S) on physiologicalaspects of Rapeseed varieties،5 varieties، Hyola - 42، Syn1، Pf 7045. 01،Symbol and Mohican، as a subplot have been studied under water stress and non stress condition (0،25 and 75 percent of Fc) as main plot in split plot design with four replication on varamin. Results showed significant between irrigation treatment and varieties in pods per plant، grains in pod and yield. Between varieties most yield and yield component had been seen for Hyola 42 and lowest yield was for Symbol. 1000 grain weight and another characteristics was effected by water stress،. there were no significant difference between varieties in response to Boron and Zinc in leaf dry matter. so there were in water deficit (O percent of Fc) treatment reduced than normal treatment reduced and showed significant difference between varieties in level %1 In split plot design، water stress Increased micro element concentration In leaved. Sulfur reduced from. 0198 to. 0101 and Zinc from 29. 6 to 15. 2 mg/kg of dry matter.