20个无患子种源经济性状差异分析与种源区划分

Analysis of Different Economic Characters and Division of Provenances about 20 Sapindus Mukorossi Gaertn’s Provenances

20个无患子种源造林试验结果表明,不同种源之间在单位面积果实产量、果皮率、百果重、果皮总皂苷含量、种仁含油率等5个经济性状表现上,存在极显著差异。利用MSM-PP与聚类分析相结合的数学手段,对20个种源综合评价,并划分出优良种源、可利用种源、一般种源和不适宜种源等4个种源区。选择获得的GX01、GX03、GD01、GD02等4个优良种源的单位面积果实产量、百果重、果皮率、果皮总皂苷含量、种仁含油率等性状平均表现,与参试群体总体平均水平相比较,遗传增益达到18.34%、9.89%、10.23%、9.83%、7.05%,选择效果较好。

The results of afforestation experiments of 20 Sapindus Mukorossi Gaertn provenances showed that there were significant differences among different provenances in five economic characters,such as yield per unit area,peel rate,100-fruit weight,total saponin content in peel and oil content in kernel.20 provenances of Sapindus Mukorossi Gaertn could be divided into four provenance regions that were the excellent provenance,the available provenance,the general provenance and the unsuitable provenance by MSM-PP with cluster analysis.The average performance of yield per unit area,100-fruit weight,peel rate,total saponin content in peel and oil content in kernel of four selected excellent provenances,such as GX01,GX03,GD01 and GD02,showed that compared with the overall average level of the tested population,the genetic gains reached 18.34%,9.89%,10.23%,9.83% and 7.05%,and showed good selection effect.