赣南杉木59个半同胞家系子代幼林树高生长表现分析

Analysis of Tree Height Growth Performance of Progeny Young Forest of 59 Half-sib Families of Cunninghamia lanceolata in Southern Jiangxi

以3 a生杉木子代幼林为研究对象,通过调查59个半同胞家系及1个对照的幼林树高的生长表现。结果表明:不同家系之间(包括对照)树高生长性状存在极显著差异,树高均值最大的是221号家系,27、29、45、71、111、221、238号等7个家系树高与对照(杉木一代种子园混系种子)相比差异达到极显著,家系间存在较大的遗传差异,其余家系与对照(杉木一代种子园混系种子)相比差异不显著。综合方差分析、多重比较、独立淘汰水平评选等多方面结果分析,初步得出27、29、45、71、111、221、238这7个家系为优良家系,最适宜在该地区造林。

Taking three-year-old Cunninghamia lanceolata progeny young forest as the research object,the tree height growth performance of 59 Half-sib families and 1 control young forest was investigated.The results show that there are extremely significant differences in tree height growth traits among different families(including controls).The largest tree height average is the No.221 family,and 7 of them are No.27,29,45,71,111,221,and 238.Compared with the control(mixed seeds of Cunninghamia lanceolata seed orchard),the tree height of the family is extremely significant,and there are large genetic differences among the families.The remaining families are not significantly different from the control(seed mixed seeds of Cunninghamia lanceolata orchard).Comprehensive analysis of variance,multiple comparisons,independent elimination level selection and other multi-faceted results analysis was adopted,those comprehensive analysis preliminarily concluded that the seven families of 27,29,45,71,111,221,and 238are excellent families,and the most suitable family is Afforestation in the area.