摘要
2008年1月上旬至2009年7月下旬,对非洲引进的3个桃花心木种源的幼树进行每周1次的观测。结果显示:种源间抗寒能力、树高生长和地径生长以及速生期都存在明显差异。种源3-1324与4-1325在苗期表现出一定的抗寒性,种源1-1320苗期对低温敏感。总体上,非洲桃花心木幼树1年抽梢4～7次,1～2月为树高生长休眠期,树高速生期为4～9月,地径生长速生期为2月、8～11月。
Three provenances of Khaya senegalensis saplings was observed once a week from early January 2008 to late July 2009.The results showed that cold tolerance,height growth and diameter growth and the fast growing period are significantly different among provenances.Overall,K.senegalensis saplings shooting 4 to 7 times per year,January to February is dormant period,April to September is the fast growing period of height,February and August to November is fast growing period of diameter.
出处
《广东林业科技》
2011年第2期1-6,共6页
Forestry Science and Technology of Guangdong Province
基金
国家林业局"948"引进项目(2005-4-36)"非洲桃花心木优良种质资源及培育技术引进"
广东省农业攻关项目(2008B02030007)"珍贵用材树种非洲桃花心木良种选育及栽培技术研究"
关键词
非洲桃花心
种源
抗寒
生长节律
Khaya senegalensis（Desv.） A.Juss
provenance
cold resistance
growth rhythm
