Gymnema sylvestre R.Br. is an important medicinal plant which grows wild in the tropical forests of central, western and southern India and in the tropical areas of Africa, Australia and China. Due to increase in demand and destructive harvesting, the plant has become vulnerable. Field experiments were conducted during 2004 to 2007 to develop some important aspects of cultivation techniques of ...

Single-node leafy stem cuttings of Shorea leprosula Miq. were subjected to a high, intermediate or low irradiance treatment for 16 weeks in an enclosed mist propagation system. Before rooting, maximum photosynthesis of the cuttings occurred at an irradiance of 400 micro mol m(-2) s(-1). Although none of the irradiance treatments affected the number of roots produced per cutting, the numbers of ...

common yew (taxus baccata) is one of the native and extinguishing speices at northern forests of iran that is very important as a genetic reserve and, therefore, more studies are necessary for preservation and restoration of this rare forest speices. for having high value and complete preservation of gene structure, vegetative propagation is one of the suitable in use methods in this field. thi...