不同种源鹅掌楸一年生播种苗的年生长规律  

Annual Growth Dynamics of Liriodendron chinense Seedlings from Different Provenances

作　　者：俞良亮[1] 季孔庶[1] 王章荣[1] 

机构地区：[1]林木遗传与生物技术省部共建教育部重点实验室(南京林业大学),南京210037

出　　处：《林业科技开发》2008年第3期23-26,共4页China Forestry Science and Technology

基　　金：国家自然科学基金资助项目(编号:30070633)

摘　　要：对鹅掌楸庐山种源和金平种源一年生播种苗的苗高和地径生长进行研究,两个种源的苗高和地径生长规律符合"S"型生长曲线,可用Logistic方程拟合,同时可把生长期划分为4个阶段。庐山种源生长期按苗高生长进行划分和按地径生长进行划分有很大区别,而金平种源却相似。两个种源的地径生长在生长盛期阶段情况相似,而苗高生长在生长盛期阶段有很大差别。Annual growth rhythms of Liriodendron chinense Seedlings from Lushan provenance and Jinping provenance were studied in this paper. The results showed that the growth patterns of height and ground diameter of two provenances were similar to ‘S＇ curves and could be fitted with Logistic equation. And by the equation the four stages could be divided for the growth of height and ground diameter. Growth stage division by the height was quite different from that by the ground diameter for Lushan provenance, while for Jinping provenance it was similar. During the rapid growth stage the ground diameter growth curve was similar between the two provenances, while the height growth curves was quite different.

关 键 词：鹅掌楸 种源 年生长规律 生长盛期 

分 类 号：S792.99[农业科学—林木遗传育种] S791.22[农业科学—林学]