Main economic characters' differences of Podocarpus nagi provenances
The forestation contrast tests on Podocarpus nagi provenances from Xiayang distract of Yanping county,Jinshui of Zhangping,Zhiyang of Ningde,Dongzhen of Putian in Fujian province were conducted.The testing results show that among the 12-yearold of P.nagi provenances there were significant differences in ground diameter's growth traits;the main economic characters of P.nagi had obvious annual,provenance and environment effects;three major economic characters(per unit area yield,thousand kernels mass and seed oil content) had extremely significant or significant differences among the provenances and the different testing sites;according to the main economic traits of provenances,the hierarchical cluster analysis was carried out,the P.nagi provenances were divided into four categories,of them,the Ⅰ-type provenance was the optimal provenances,which include A2(Fujian Yanping)and A7(Jiangxi Wuyuan).
NETL
NSTL
万方数据
维普
