Family Selection of Fast-growing Betula platyphylla with Fine Quality for Fibre Timber
A survey was conducted on 30 families of three fine provenances (Maoershan, Dongfanghong, Wuyiling) in a provenance trial stand of 10-year-old Betula platyphylla in Maoershan Experimental Forest Farm, Shangzhi City. Remarkable differences in diameter at breast height, tree height, stem volume and cellulose content were found between different families. Three fine families, Dongfanghong No.14, Maoershan No.9 and Maoershan No.14, were screened out by means of genetic parameter estimation, principal component analysis and cluster analysis. The genetic gains in cellulose content and stem volume for Dongfanghong No.14, Maoershan No.9 and Maoershan No.14 were 5.08%, 4.35%, 4.16% and 23.96%, 22.85%, 21.55%, respectively.
NETL
NSTL
万方数据
维普
