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四川桤木无性系采穗圃修枝与施肥试验初报
Tests on the pruning and fertilization of clonic scion pluching nursery of Alnus cremastogyne Burk
【摘要】 为提高四川桤木无性系采穗圃穗条产量,对其无性系进行了修枝与施肥试验,试验表明:在无性系定杆150cm高时,将其抽发的侧枝进行短截修剪,修剪强度以轻、中短截效果最佳,可显著提高无性系穗条产量,在无性系定杆120cm高时,施用氮肥可显著提高无性系穗条产量。
【Abstract】 In order to increase the output of the clonic tassels of Alnus cremastogyne Burk, pruning and fertilization methods were tested on various clones. The results showed that using the follwing methods can increase the output of cloned tassels: Short pruning on lateral branches and using light and low cutting intensity when the clone stick is 150?cm height, and fetrilizing with the N when the clone stick is 120?cm heilght.
【关键词】 四川桤木;
无性系;
采穗圃;
修枝;
施肥;
总芽数;
【Key words】 Alnus cremastogyne Burk; clone; scion pluching nursery; pruning; fertilize; total buds;
【Key words】 Alnus cremastogyne Burk; clone; scion pluching nursery; pruning; fertilize; total buds;
【基金】 湖南省林业厅科学基金项目“主要速生阔叶用材树种良种选育与应用技术体系研究”(2002—01)
- 【文献出处】 湖南林业科技 ,Hunan Forestry Science and Technology , 编辑部邮箱 ,2005年01期
- 【分类号】S792.14.06
- 【被引频次】17
- 【下载频次】105