切花菊杂交F1代观赏性状的遗传分析

Heredity of some characters in F1 generation by the eight cross combinations among eight varieties of cut-flower chrysanthemums were studied. The results show that different flower colors have different genetic potential, and each color of the parents in turn can be ranked as follows: white > pink > yellow; the flower time of F1 hybrids lied between parents; the mean of hybrid inflorescence diameter, the number of ligulate flower and tubular flower, petal length and width, all showed a trend of decrease and the mean of them were 95.9%, 85.2%, 71.6%, 76.1%, 84.9% of their parents, but heterosis in different cross combinations were not same, and then the performance advantage depended on combinations; The mean of hybrid pedicel length had a clear difference parents and showed a trend of decrease; According to breeding objectives, having a significant correlation among different ornamental characters, and they could provide data reference of cut-flower chrysanthemums.