Growth and Medicinal Content of DifferentProvenances of Taxus wallichiana var. mairei at Young Age Effect of Cultivation Measures on the Taxol Content ofTaxus chinensis var. mairei Selection of High Taxol Content Cell Lines of Taxus yunnanensis Cheng et L.K.Fu RAPD Markers Related to Taxol Content of Taxus yunnanensis Effects of diameter at breast height, modules and seasons on Taxol and 10\|DAB contents in Taxus Chinensis var. mairei