华山松种源试验林32年生长量比较分析

Comparative Analysis of 32 Years Old of Pinus armandi Provenance Test Forest

摘要:

摘要：通过对全国10省（区、市）25个华山松种源32年选择研究，首次取得了对华山松种源研究的大量系统数据，确定了适宜种源，为宜昌市发展华山松提供了科学依据。结果表明：最适宜昌山区造林的是重庆城口和贵州威宁的种源，现实遗传增益比湖北巴东种源材积提高38.8％；比其它23个种源平均值材积提高23.3％；比25个种源平均值材积提高21.4％。

Abstract:

Abstracts:Lots of research data was obtained for the first time by means of selection study on 25 Pinus armandi provenance for 32 years in 10 provinces. In addition, appropriate provenance was determined, which provided scientific basis for developing Pinus armandi of Yichang. The results showed that the suitable provenance in Yichang mountain area was that of Chengkou in Chongqing and Weining in Guizhou. The actual genetic gain increased by 38.8% than that of Badong provenance, by 23.3% in average than that of other 23 kinds of provenance, and by 21.4% than that of 25 provenances.