摘要
１９６３年中国首次从古巴引种加勒比松古巴变种，１０ａ后又从危地马拉引种加勒比松洪都拉斯变种和加勒比松巴哈马变种，而变种与种源结合进行的多点试验却始于１９８３年。加勒比松３个变种现已进入系统的种源与子代测定阶段。目前，应用多群体育种策略建立复合实生育种种子园，这种途径不仅能把遗传测定、选择育种和种子生产结合起来，而且也考虑到基因保存和未来的长期育种需求，可能是当前加勒比松引种改良的最佳选择。
Pinus caribaea var. caribaea from Cuba was introduced to southern China in 1963 with P. caribaea var. hondurensis from Guatemala and var. bahamensis following in 1973. However,it was not until 1983 that combined variety/provenance testing was established on several sites with a range of provenance. The combined provenance/progeny trials were also established with the three varieties in 1990 using seeds representing the whole distribution range. A breeding seedling orchard of var. caribaea has been established using a multiple population breeding strategy. The strategy is conceived to combine the functions of genetic testing,selection breeding and seed production. At the same time it both permits gene conservation and provides long term flexibility for advanced generation breeding.
出处
《林业科学研究》
CSCD
北大核心
1996年第6期625-632,共8页
Forest Research
关键词
加勒比松
引种
基因保存
遗传改良
Pinus caribaea Morelet, introduction, gene conservation, genetic improvement
