Objective: To provide guidance for selection and breeding of Pesudostellaria heterophylla, agronomic traits of 3 mainly cultivated form of P. heterophylla were observed and compared in Guizhou shibing.
Method: Thirteen agronomic traits of P. heterophylla from 3 cultivation form were measured and the traits were analyzed using multiple comparison, correlation analysis, multiple stepwise regression analysis and path analysis.
Result: The results showed that agronomic traits were different in 3 cultivation form, significant(P <0.05)or very significant correlated (P <0.01)among multiple agronomic traits, the width and the number of root, the first branch number, cleistogamous flowers, length and width of leaves, and the aboveground biomass were the main factors that affected the underground biomass, and the number of root, the aboveground biomass had a directly positive effect on the underground biomass. Meanwhile, whole length, length and width of leaves, cleistogamous flowers etc. had direct or indirect effect on the underground biomass.
Conclusion: Aboveground biomass would be as the best indirect selection traits on breeding high yield of P. heterophylla, the first branch number, width of leaves and cleistogamous flowers world be as a better auxiliary index on breeding high variety of P. heterophylla.