Effect of temperature, pretreatments and soil types on germination and preliminary growth of three medicinal plant species of Garhwal Himalaya.

摘要

An experiment was conducted in Garhwal, Uttar Pradesh, India, to examine the effect of different temperature, pretreatments and soil types on germination and growth of Rheum emodi, Saussaurea lappa [Saussurea lappa] and Potentilla fulgens [Potentilla siemersiana]. Germination of all 3 species was better at 25 degrees C. R. emodi had faster germination under chilling treatment for 7 days and 100 ppm GA3 treatment was best for S. lappa and P. fulgens. Chilling for 7 days compared to other treatments enhanced the cumulative germination in all 3 species. Germination and growth response of R. emodi was better in forest soil, however, S. lappa and P. fulgens were superior in arable soil. The results suggest that all 3 species should grow satisfactorily under traditional agricultural systems of tropical-temperate regions. However, mature seeds of these species need to be kept for a few days under chilling environment prior to seed sowing in the nursery beds..