摘要
按照"三株大树法"在辽宁省森林经营研究所草河口试验基地5处不同林龄红松人工林中选择10株结实丰产型优树,并调查了优树个体结实量、胸径和树高等生长指标,计算了3年结实量的遗传增益计算。结果表明,10株优树结实量的平均遗传增益为26.32%,选择优树穗材作为繁殖材料营建红松结实高产无性系果林,经济效益可观。
According to the method of ＂three strains of big tree＂,10 seed yield type trees were selected in 5 experimental stands of Pinus koraiensis plantations at different experimental stages in Liaoning Institute of Forest Management,and individual seed weight,DBH and height of Pinus koraiensis were investigated.The results showed the average genetic gain of the selected 10 strains of tree seed yield was 26.32%,taking the tree spike as pine clones seed breeding material construction fruit had considerable economic benefits.
出处
《安徽农业科学》
CAS
2017年第9期158-159,共2页
Journal of Anhui Agricultural Sciences
关键词
红松
优树
遗传增益
经济效益
Pinus koraiensis
Plus tree
Genetic gain
Economic benefit
