Effects of Chilling and Gibberellic Acid on the Seed Germination and Seedling Growth in Paeonia ostii‘Feng Dan’ Effects of Chilling and Gibberellic Acid on the Seed Germination and Seedling Growth in Paeonia ostii‘Feng Dan’ Relationship of the Brassinolide Promoted Epicotyl Elongation to Protein and Nucleic Acid Synthesis in Mung Bean Cuttings Release of Seed Dormancy of Paeonia ludlowii A Study on the Tissue Culture and Plant Regeneration of Trifoliate-orange (Poncirus trifoliata) A STUDY ON DORMANCY AND PREGERMINATION OF THE VIBURNUM BETULIFOLIUM SEEDS