滇西云南松母树林后代测定试验初报“云南松天然优良林分选择、改良及促进结实技术”  

A Preliminary Report on the Progeny Test of SeedProduction Stands of Pinus yunnanensis in Western Yunnan “Selection, Improvement and Seed-promotion Techniques on the Original High-quality Stands of Pinus yunnanensis The Pinus Project Team

作　　者：(Yunnan Academy of Forest Science. Kunming 650204) 

出　　处：《西部林业科学》1995年第3期6-13,共8页Journal of West China Forestry Science

摘　　要：对五个种源（含对照）的８１个家系进行云南松母树林单株半同胞后代多点测定。滇西试地的早期测定结果表明，其树高大小依次为：滇西、滇中、对照、川西南、滇东南种源，地径大小次序则与树高相反；滇西种源早期高生长快而径生长慢，其它种源早期高生长慢而径生长快；３年生时树高和地径大于对照的分别有３０个家系和６３个家系；苗木根系的发育程度影响着针叶的生长发育，进而影响林木的生长量；种子发芽率与树高存在一定的相关性.The test on single seed stand of Semi-parents progeny from 81 families of 5provenance has been carried out in various plots.The result of the prephase test in the westernYunnan plot.indicates that their trees height in order from high to low are WesternYunnan,the central Yunnan,the check trees,the southwestern Sichuan and southeasternYunnan provenance while their diameter order is completely contrary.For the provenance ofthe western Yunnan in the early stage,their height grow fast while the diameter solwoy,andthe other provenance's height grow slowly and diameter quickly in their early stage. In threeyear,there are 30 families higher than the check trees and 63 families's diameters larger thanthe check.

关 键 词：滇西 云南松母树林 后代测定 

分 类 号：S791.257[农业科学—林木遗传育种]