Estimate Phytoremediation of Forage Safflower in soil polluter to Cadmium Heavy Metal under foliar application Growth Aactuator Dalgin.

This study in order to investigate the purification of forage safflower plant under heavy cadmium metal contamination conditions by foliar application using of dalgin growth stimulant in a completely randomized design with four replications in the Faculty of Agriculture of Islamic Azad University, Varamin - Pishva Branch in 2019 was conducted.  The applied factors in this study were included cadmium at zero (control), 50 and 100 mg/kg soil levels and dalgin foliar application at zero (control) levels was 1 and 2 per thousand. The results showed that cadmium was decreased shoot length (%31.28), root length (%41.35), wet and dry weight of shoot (%60.46 and %44.69), wet and dry weight of root (%26.77 and %58.11), leaf surface index (%52.05), relative leaf water content (%39.74), chlorophyll (%22.54) and catalase enzyme activity (%10.73) and was increased proline (%164.38), malondialdehyde (%88.1) and cadmium of aerial and root organs concentrations. The most effect of cadmium was obtained in the treatment of 100 mg.kg of soil. It was also observed that the using of dalgin could increase shoot length, root length, wet and dry weight of the shoot and root, leaf surface index, relative leaf water content, chlorophyll and cadmium concentration of aerial and root organs and could decrease proline and malondialdehyde. In general, the most positive effect in using of one per thousand of dalgin was obtained. From the obtained results, it can be found the positive effects of dalgin, especially in the presence of cadmium, and the reduction of the negative effects of stress in the forage safflower. Therefore, the using of one per thousand of dalgin to increase the plant refining of heavy metal cadmium stress by forage safflower is recommended.