Study potential of Helichrysum globiferom and Helichrysum aucheri for reclamation of saline lands in watersheds

In rangeland watersheds, drought and salinity are the two preventive factors for production. So one of the obstacles to the development of plants that is salinity and drought during seed germination. in this study we evaluated the effects of salinity stress on Helichrysum globiferom and Helichrysum aucheri germination properties based on a In the form of a factorial experimental design with four replications and four salinity levels (0-50-100-150 mM sodium chloride) in seed Ecology laboratory of Sari Natural Resource Faculty. Seeds of two species were collected of Qushchy pastures in 70 kilometers of the old road of Urmia-Karabakh. Results showed that salinity stress had a significant reducer effect on percentage and speed of germination, growth of root and shoot length in two Species. Amount of reduction in the total in all traits species of Helichrysum globiferom species of Helichrysum aucheri. The amount of this reduction in all traits in Helichrysum globiferom was less than Helichrysum aucheri species. The ratio of Root to shoot length (allometric coefficient) also was the highest in Helichrysum globiferom. So we conclude that this species is more resistant than other species. So the highest decrease in both species was observed in germination percentage, germination speed, and root, shoot and plant length, in treatment 150 mM.