Investigation of some qualitative indices in sunflower (Helianthus annuus L.) with zeolie application and different levels of irrigation

In order to investigate some qualitatives indices of sunflower (Helianthus annuus L. var. Azargol) with zeolite application and different levels of irrigation، an experiment was carried out in Varamin، Iran، on 2012. Field experiment was conducted based on randomized complete block design with factorial split-plot arrangement each at three replications. Irrigation factor was chosen at three levels including: normal irrigation، drought stress at flowering stage and drought stress at seed filling stage in main plots. Zeolite was used at three levels، no application، 6 ton per hectare and 12 ton per hectare in sub plot. Germination percentage، germination rate، seedling dry weight، radicle، plumule dry weight and oil percentage were measured. The results showed that normal irrigation increased all of the traits and drought stress at flowering and seed filling stages decreased all of the traits. The highest values of the measured traits related to normal irrigation with 12 ton per hectare zeolite application and the differnence was not significant with 6 ton per hectare zeolite treatment.