Study on Chemically Regulating the Sex Differentiationin Twin Seed Orchard of Chinese Fir Female cone development in Thuja occidentalis Female Cone Development in Fokienia, Cupressus, Chamaecyparis and Juniperus (Cupressaceae) Microarray Analysis of Large Scale Gene Expression Profiles between Male and Female Cones of Pinus tabulaeformis The Analysis of Flowering Phenology of Clones in Guiyang Pinus massoniana Second-generation Seed Orchard A STUDY ON BIOLOGICAL CHARACTERS OF REPRODUCTION OF LARIC OLGENSIS HENRY I. DIFFERENTIATION AND EARLY DEVELOPMENT OF CONE FLOWER BUDS Influence of Female Cones on the Branch Growth of Pinus tabulaeformis Strobili and seed characteristics of Tsuga dumosa and its relationship with environmental factors