Studies on cutting propagation of Taxus chinensis var. mairei Ⅷ. Comparison of physiological metabolism between the seed seedlings and the cutting seedlings Studies on cutting propagation of Taxus chinensis var. mairei Ⅶ. Comparison of photosynthesis physiological characteristics between the seed seedlings and the cutting seedlings Research of Photosynthetic Characteristics and the Growth ofSeedlings and Cutting Stocks of Taxus yunnanensis Effects of uranium tailings on growth and physiological characteristics of Brassica seedlings