Effect of different temperature and source variation on seed germination of seabuckthorn (Hippophae salicifolia)

The present study was undertaken at Forest Tree Seed Laboratory FRI Dehradun situated at 30° 20’ latitude, 77° 52’ longitude and at 640.08 m amsl altitude for the standardization work on the multiplication to study the response of germination and growth of H. salicifolia in different temperatures. Fruits for the study were collected from different locations of Chamoli & Uttarkashi districts of Uttarakhand, India in the October 2010. Under Chamoli district, the villages selected were Mana, Hanumanchatti, Lambagarh, Pandukesar and the villages selected from Uttarkashi were Dharali, Hurri, Sukhi, and Harsil. From the study it was observed that there was significant variation among seed sources for seed traits. The seed germination of H. salicifolia at different temperatures showed that the maximum germination percentage observed in 25° C and minimum germination in 30°C. Temperature of 25° C also gave early seed germination as comparison to 30°C and control. The seed germination percentage was increased in 25°C and decreased at 30°C from the control. The maximum germination percentage was recorded from seed of Dharali area at 25°C and minimum germination was from Hurri area of Uttarkashi at 25°C. Hence, the results of the study showed that 25°C temperature is best for the proper seed germination of H. salicifolia.