摘要
为选择无患子优良家系,对46个无患子家系12年生林木调查数据进行分析,结果表明:在闽东北高海拔区无患子树高、胸径及冠幅存在一定的遗传变异,其中树高的遗传变异最大。无患子家系之间在树高、胸径方面存在极显著性差异,在冠幅方面存在显著差异。无患子遗传力树高、胸径明显大于冠幅。通过试验从中选择出8个优良家系,其中树高、胸径及冠幅的平均遗传增益为12.2%,树高、胸径、冠幅平均增益分别为10.8%、17.2%、8.5%,同时具有果穗多,果粒密集,结果枝分布均匀,丰产性良好等较优的综合经济指标,可用于生产。
In order to select the superior families of Sapindus mukorossi,the survey data of 12-year-old trees in 46 families of Sapindus mukorossi were analyzed.The results showed that:There were some genetic variations in the tree height,the diameter at breast height and crown width of Sapindus mukorossi in the high altitude area of northeast Fujian,among which the genetic variation of tree height was the greatest.There were very significant differences in the tree height and the diameter at breast height among the families of Sapindus mukorossi,and there were significant differences in the crown width.The heritability of tree height and DBH of Sapindus mukorossi were significantly greater than that of crown width.Then,eight superior families were selected through the experiments.The average genetic gains of tree height,diameter at breast height and crown width were 12.2%,while the average gains of tree height,diameter at breast height and crown width were 10.8%,17.2%and 8.5%,respectively.At the same time,it had better comprehensive economic indicators such as more ears,dense fruit grains,uniform distribution of fruit-bearing branches and good yield potential,which could be used for the production.
作者
林小娟
LIN Xiao-juan(Zhouning County Bureau of Forestry,Ningde,Fujian 355400,China)
出处
《福建农业科技》
CAS
2022年第8期50-55,共6页
Fujian Agricultural Science and Technology
基金
福建省科技计划区域重大专项(2010N3030)。
关键词
高海拔区
无患子
高海拔
优良家系选择
High altitude area
Sapindus mukorossi
High altitude
Selection of superior families
