Effect of Soil Drying-Wetting Alternation on Physiology and Growth of Pteroceltis tatarinowii Seedlings Effects of snowmelt timing on individual growth and reproduction of Pedicularis davidii var. pentodon on the eastern Tibetan Plateau Effects of Submergence and Drought Alternation on Nutrient Contents in the Soil Growing Slash Pine (Pinus elliottii) Seedlings Three new species of Aspidistra Ker-Gawl. (Liliaceae) from Guangxi, China Fertility Alternation of Thermo-photo-sensitive Genic Male Sterile Wheat Line C412S and Expression of Fertility Related APRT Gene Review of response mechanism of soil respiration to rainfall Response of photosynthesis and chlorophyll fluorescence characteristics of Pterocarya stenoptera seedlings to submergence and drought alternation Effects of Ecosystem Alternation on Soil Carbohydrates Effect of dry-wet alternation frequency on the growth and physiological characteristics of reed STUDY ON APPLICATION OF HERBICIDES AND THE SUCCESSION OF WEED POPULATION IN SPRING WHEAT FIELDS Studies on Evolution and Its Tendency of Agronomic Characters of Winter Wheat during Cultivar Alternation in xinjiang