Genetic Variation and Selection of 14-year-old Liquidambar formosana Progeny
A progeny test containing 53 open-pollinated families of Liquidambar formosana from Huangshan,southern Anhui Province,was established in Yangkou Forest Farm of Fujian Province.Base on data collected from the progeny test,the genetic variation in growth and wood quality traits of the L.formosana families were estimated,and the superior families and individuals were selected.The mean height,DBH and volume of the 14-year-old trees were 8.05 m,6.30 cm and 0.014 93 m3,respectively.The family heritabilities for growth traits were moderate,ranging from 0.437 to 0.576.The heritabilities of individual tree for growth traits were low,ranging from 0.113 to 0.195.The family heritabilities for wood quality traits were moderate,ranging from 0.507 to 0.591.The heritabilities of individual tree for growth traits were moderate,ranging from 0.360 to 0.500.The mean tree growth of height,DBH and volume of 9 selected fast-growing families were 8.85 m,7.22 cm and 0.021 49 m3,respectively,and their genetic gain were 2.86％,5.47％ and 13.4％.Seven families with both fast-growing and good wood properties were selected from families with wood basic density over 0.500 g · cm-3.The mean height,DBH,volume and wood basic density of the 7 families were 8.34 m,6.79 cm,0.018 58 m3 and 0.518 g ·cm-3.The selected fast-growing families and selected families with both fast-growing and good wood properties were superior breeding material of L.formosana for plantation establishment on a large scale.
NETL
NSTL
万方数据
维普
