Establishment of Key Germ Plasm of Vernicia fordii in Sichuan and Chongqing Areas

The 300 parts of VF germplasm materials in Sichuan and Chongqing areas were divided into 12 groups according to the population way, then by group clustering method, 5 candidates were collected (in the proportion of 30%, 25%, 20%, 15% and 10%) and their genetic diversity indexes were compared and the significance of their difference was tested. Finally 60 parts of key germ plasm were established under 20% of the sampling rate. Through testing the characteristic value coincidence of key germ plasma, the mean compliance rate, the standard deviation rate and the coefficient of variation were 98.07%, 94.12% and 95.70%, which showed that the primary key germ plasm was able to represent genetic variation of the total germplasm.