Female Gametophyte Development in Cattleya Germination and Preservation of Rhyncholaeliocattleya Pollen Changes of Aroma Components in Cattleya in Different Florescence Effects of Different Growth Regulators Treatment on Cattleya Flowering The Effect of Different Temperature Treatments on Dynamic Changes of Endogenous Hormones and Flower-bud Differentiation of ‘Green World‘ Cattleya Morphological Differentiation of Flower Bud of Cattleya labiata Study on asymbiotic germination of Cattleya hybrid seed and development of protocorms during germinating Cloning of ACC Oxidase Gene from Cattleya Flower and Construction of Its Plant Antisense Expression Vector Morphogenesis of the protocorm of Cattleya hybird in vitro Morphological Differentiation of Flower Bud of Cattleya labiata