16年生火力楠子代林种源及家系的生长表现

The Growth Performance of the Provenances and Families of the Sixteen-Year-Old Michelia Macclurei

火力楠(Michelia macclurei)种源和家系存在较为丰富的变异,选育潜力大,树龄中前期评价可为火力楠优良种源和家系选择提供参考。本研究以广西4个种源11个优良单株的子代林为试验对象,其中3号为对照组,对16年生火力楠种源和家系的生长表现进行分析,并利用隶属函数值进行综合评价,结果为4个种源中信宜最优,11个家系表现为23号> 7号> 5号> 11号> 4号> 15号> 16号> 24号> 27号> 13号> 3号,其中23号、7号、5号和11号的得分都在0.5以上,可以作为优良家系的选择。

The Michelia macclurei has abundant variations in its provenance and families,and has great breeding potential.The mid-early evaluation of tree age can provide reference for the selection of excellent provenances and families of Michelia macclurei.In this study,the growth performance of 16-year-old Michelia macclurei provenances and families was evaluated by applying the membership function value,taking the progeny forest of 11 excellent individuals from 4 provenances in Guangxi as the test object,and No.3 as the control group.The results showed that Xinyi was the best among the four provenances,with 11 families performing as No.23>No.7>No.5>No.11>No.4>No.15>No.16>No.24>No.27>No.13>No.3.Among them,scores of No.23,No.7,No.5,and No.11 were all above 0.5,which can be applied as a choice for excellent families.