摘要
１９８５～１９８７年三年间测得人参叶片比叶重的变化范围在１６５～４４０ｍｇ／ｄｍ２之间。一年生和四年生人参叶片比叶重较高，三年生和六年生人参叶片比对重较低。人参叶片比叶重受生长期间光照条件的影响，随着荫棚透光率的增加，人参叶片比时重增加。当荫棚透光率超过４５％时，比叶重呈下降变化。人参叶片比叶重在整个生长季节呈双峰曲线变化，高峰出现在６月下旬和８月上旬。弱光下人参叶片比叶重的季节性变化不明显。
Specific leaf weight(SLW)of ginseng leaves varied were in the range of 165～440 mg.dm(-2) during 1985～1987.Higher SLW were measured in one-year-old and six-year-old.The changes of SLW were effected intensely by light intensity during the growth. SLW of ginseng leaves were increased with the increase of light transmission rate, but SLW were decreased when light transmission rate were 45%.Seasonal change in SLW showed double peak curves in full expanded leaves,one peak were at the last ten-day of june, and second peak were appeared at the first ten-day of August.
出处
《吉林农业大学学报》
CAS
CSCD
1994年第4期39-42,共4页
Journal of Jilin Agricultural University
基金
国家医药总局资助课题
关键词
人参
比叶重
光照
Ginseng
Specific leaf weight
Light intensity
