In order to investigate the physical problem of flowering and fructification rate of endangered plant Camellia nitidissima,and provide the theory basis for species conservation,the contents and ratio of GA_3,IAA,ZR and ABA in fruit branch leaves of C. nitidissima of more-flower,less-flower and non-flower were measured by ELISA( Enzyme-linked immunosorbent assay) method during blossom and fruit periods. In early-bloom stage,the content of IAA in leaves rised firstly and then fell,and its content of more-flow...