文献类型：期刊文献

英文题名：Genetic Variation and Correlation among Resin Yield, Growth, and Morphologic Traits of Pinus massoniana

作者：Liu, Qinghua[1] Zhou, Zhichun[1] Fan, Huihua[2] Liu, Yurong[2]

第一作者：刘青华

通信作者：Zhou, ZC[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Peoples R China;[2]Fujian Acad Forestry Sci, Fuzhou 350012, Peoples R China

年份：2013

卷号：62

期号：1-2

起止页码：38-+

外文期刊名：SILVAE GENETICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000323240000005)】；

基金：The present research was funded by the National Forestry Public Welfare Program of China (Grant no. 201104020), the National Natural Science Foundation of China (Grant no. 31100491) and National Science & Technology Pillar Program in the 11th Five year Plan of china (Grant no. 2012BAD01B02).

语种：英文

外文关键词：resin yield; growth; morphologic traits; heritability; genetic correlation; Pinus massoniana

摘要：In breeding programs, the variations and relationships among main traits need to be understood to develop selection and breeding strategies. Resin is considered as one of most important non-timber production of P. massoniana which can privides terpenes used in the chemical industry. The present study assessed the genetic variations in growth, morphologic traits, and resin yield, as well as the phenotypic and genetic correlations between these traits of 45 half-sib families of eight-year-old Pinus massoniana trees. All traits show highly significant family effects. The individual heritability for diameter at breast height (DBH) was the highest (h(i)(2) = 0.55). Heritabilities for resin yield, tree height, crown depth, and the height to the live crown were slightly lower than DBH, ranging from 0.32 to 0.45. The other traits were under weak genetic control and heritabilities ranged from 0.17 to 0.20. All growth and morphologic traits were significantly correlated genetically with resin yield. Number of living branches had the highest genetic correlation with resin yield (r(g) =0.99), followed by DBH and number of living whorls (r(g) = 0.73 and 0.70). Only a moderate positive genetic correlation with resin yield was found with the other traits (r(g) = 0.47-0.57), except for height under the living branches (r(g) = -0.45). The results of this study indicate that both resin yield and growth can be improved simultaneously in the next generation. Of the traits assessed DBH was the optimum trait for indirectly selecting high-yielding resin trees.