【摘要】 新植红松幼林生长3年后,选其优良母树采集接穗进行嫁接试验,结果表明:红松幼树嫁接9年后,树高、胸径、冠幅的生长量比同龄常规造林分别提高13%、19%、17%;红松幼树嫁接从6年开始,随年龄的增大,生长量明显加快,红松幼树嫁接后,树高生长率比常规造林提高9%,胸径生长率提高8%。更多还原

【Abstract】 Scions of superior mother trees of newly-planted three-year-old Pinus koraiensis plantation were selected to conduct grafting experiment.Result shows that:the growth of the tree height,DBH,and crown of the saplings of Pinus koraiensis increase by 13%,19% &17% than that of the conventional afforestation after grafting for nine years.Saplings of six-year-old Pinus koraiensis begin to graft.The growth accelerated significantly with the increase of the age;after grafting of saplings for Pinus koraiensis,height growth rate increase by 9%than that of the conventional afforestation;DBH growth rate increase by 8%.更多还原