EFFECT OF PRE-SOWING TREATMENTS ON SEED GERMINATION IN IMPATIENS TALBOTII - AN ENDEMIC AND ENDANGERED EPHEMERAL OF THE WESTERN GHATS
Journal Title: IJAR-Indian Journal of Applied Research - Year 2018, Vol 8, Issue 9
Abstract
The present investigation was carried out in College of Forestry Sirsi during 2015-16. Impatiens talbotii Hook. is a rare and endangered ephemeral restricted to Northern part of Central Western Ghats, specifically Uttara Kannada and parts of Shimoga District of Karnataka. Because of seed dormancy there is no germination of seeds in off season. This however, hinders the conservation strategy of the species. Thus, efforts were made in this study to break the seed dormancy and improve the germination of seeds for boosting conservation as well for domestication of rare plants in large scale. The highest germination of 93 per cent was observed in combined treatment of scarification and GA3 @ 100ppm for 6 hours soaking followed by 89 per cent germination was observed in seeds treated with GA3 @ 100ppm for 6 hour alone over the other subjected pre- sowing treatments. Similarly germination rate and peak value were observed high in seed treated with combined treatment of scarification and GA3. Seed treated with the same treatment produced comparatively high quality seedlings with the vigour of 4232. There was no germination observed in control. The study suggested the scarification and GA3 treatments were best to break the dormancy of seeds.
Authors and Affiliations
Pallavi Pallavi, Krishna. A
Keywords
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