树冠修剪和切根处理对红松母树雌雄球花分化的影响  

Influence of crown pruning and cutting roots on differentiationof female and male cone

作　　者：崔太淑 赵哲南 钱喜令 孙立辉 娄向阳 罗广军[4] 

机构地区：[1]汪清县林业局,吉林延边133200 [2]汪清县汪清镇林业工作站,吉林延边133200 [3]汪清县罗子沟镇林业工作站,吉林延边133216 [4]延边大学农学院,吉林延边133002

出　　处：《吉林林业科技》2012年第2期7-10,共4页Journal of Jilin Forestry Science and Technology

基　　金：吉林省科技厅资助项目(20100584)

摘　　要：以红松种子园中的生长形状相对一致的嫁接母树为试验材料,研究不同树冠修剪和切根方法对母树雌雄球花分化数量的影响。结果表明,不同处理均对母树雌雄球花分化数量有显著的促进作用,其中:剪去树冠第一层轮枝和顶梢部分,在第二层轮枝中选留3个生长健壮且分布均匀的侧枝,其余侧枝全部剪除的处理方法,对雌球花分化数量的增加作用最为明显,差异达到极显著水平;切断试验母树3/4环形沟中的根系和试验母树环形沟中全部根系的处理方法,对雌雄球花分化数量的增加作用最为明显,差异达到极显著水平。The effects of crown pruning and cutting root treatments on differentiation of female and male cone of grafting trees were detected in korean pine （Pinus Koraiensis） seed orchard. The results indicated that all the treatment obviously improved the differentiation of male and female cone. The treatment of cutting all the bran- ches in the first layer of whorl and terminal shoots, then only remain 3 lateral branches distributing evenly in the second layer of whorl mostly increased the differentiation number of female cone. The treatment of cutting off 3/4 part of root system of the seed tree and even whole root system largely improved the differentiation number of the male and female cone.

关 键 词：红松 树冠修剪 切根 雌雄球花 分化 

分 类 号：S722.81[农业科学—林木遗传育种]