摘要
研究了生长在不同光照条件下的少花桂幼苗生物量、根冠比和叶面积的季节性变化.结果表明:生物量和叶面积均随生长期的延长而增加,且以一层遮荫生境为最大,其次依次是自然光照、二层遮荫、三层遮荫.从遮荫处理5个月的SSR多重检验结果来看,各种处理间的干物质和叶面积增加均有显著差异;根冠比随生境光照的减弱而下降.
The Cinnamomum pauciflorum biennial seedlings to various light intensities in biological yield are studied.The results showed that with the light intensity in which the plants lived weakening,the root top ratio lessened.In four light intensities,the Cinnamomum pauciflorum biennial seedlings under one layer shading(Ⅰ) is the biggest in leaf weight,leaf area and total biological yield,the second is that under full sunlight(CK),next is two layer shading(Ⅱ) three layer shading(Ⅲ) is the lowest;In Root top ratio,CK is the biggest,Ⅰ is the second and the last is Ⅲ.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第2期214-218,共5页
Journal of Southwest China Normal University(Natural Science Edition)
基金
国家自然科学基金项目"植物种群生态适应机理研究"! (批准号 :3 93 3 0 0 5 0 )
关键词
少花桂
生物产量
季节变化
光照
生长
幼苗
cinnamomum pauciflorum
biological yield
changes with season
light intensity
