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›› 1987, Vol. 23 ›› Issue (4): 415-424.

• 论文及研究报告 • 上一篇    下一篇

白榆种源与家系的选种研究

顾万春 刘德安 田玉林   

  1. 中国林业科学研究院林业研究所;中国林业科学研究院磴口实验局
  • 收稿日期:1986-11-30 修回日期:1900-01-01 出版日期:1987-11-25 发布日期:1987-11-25

A STUDY ON SEED SELECTION OF PROVENANCE AND FAMILY OF ULMUS PUMILA L.

Gu Wanchun,Liu Dean,Tian Yulin   

  1. Forest Research Institute, Gohiinese Academy of Forestry;Deng Kou Experimental Bureau, Chinese Academy of Forestry
  • Received:1986-11-30 Revised:1900-01-01 Online:1987-11-25 Published:1987-11-25

摘要: 为了系统地研究白榆群体变异规律以及群体生态适应性所反映出来的生产力差异,我们于1977年开始进行全国白榆种源试验和种源选种研究。本文着重探讨:(1)白榆分布区内生态因子变化规律及其种群的梯度变异,依据种源试验结果进行种源区(集群)划分;(2)进行白榆种源与家系的遗传参数分析,探索遗传力的稳定年限;(3)采用国外提出来的收缩系数(C)计算种源育种值(Z),为科学地种源选种提供依据;(4)在群体变异分析、种源区划分的基础上,分析集群生态适应动态,建立生态适应指数模型,预测经济成熟龄时的生产率,提高早、中期选择的可信性。

Abstract: The provenances of Ulmus pumiea L. can be divided into six provenance regions in China by observating experimental forest for 8 years. The volume of prorenance breeding value (Z) increased by 150% selecting appropriate provenances. Family selections have been evaluated using selection index (I1), and ecological adaptation movements of provenances by means of ecological adaptation index (q(ij)). Meantime, the heritability stabilities of character and the areas of experimental plot have also been analized in this paper.