Title: Studies on Two-Level Selection for Fine Families of Pinus Massoniana
Abstract: Variation of traits,including stem volume,height and diameter at breast height(DBH) of 13-year-old progenies from plus trees from the natural stand of Pinus massoniana,was tested.The results showed that differences in the growth of stem volume,height and DBH among 141 families were significant.Through multiple comparison and sorting of genetic gains,sixteen fine families were selected based on Q-test,and genetic gains of mean stem volume,height and DBH of these families were 42.11%,12.90% and 7.06% respectively.16 fine individuals were selected from these fine families,and their genetic gains of mean stem volume,height and DBH were 56.83%,14.76% and 8.72% respectively.The selection effect was significant,and these 58 fine individuals were able to be used as second-generation breeding materials.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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