COMPARISON BETWEEN M_1 GENERATION OF RESTING SEED AND SPROUT SEED OF SPRING WHEAT IRRADIATED BY 50MeV/u~(12) C ION BEAMS Biological Traits of Three Gastrodia elata Variants in the Flowering Period Spaceflight-induced variation on biological traits and effective components of Cassia obtusifolia Low temperature phenomena of wheat and mungbean canopy of different genotypes STUDIES ON THE PATHOGEN OF FUSARIUM ROOT ROT OF WHEAT AND ITS BIOLOGY STUDIES ON THE PATHOGEN OF STEM-ROT OF CHINESE WATERCHESTNUT AND ITS BIOLOGY Effect of different plant growth regulators on yield and quality of Angelica dahurica var. formosana development