【摘 要】
：
研究了“细叶绿”品种的四种栽培密度的光合性状:1000蔸/亩头麻的有效分蘖时期最长,为27天,二、三麻较短,为16天左右。三季麻的叶面积均在黑杆始期出现高峰。在叶面积指数达
【机 构】
：
华中农业大学农学系,华中农业大学农学系
论文部分内容阅读
研究了“细叶绿”品种的四种栽培密度的光合性状:1000蔸/亩头麻的有效分蘖时期最长,为27天,二、三麻较短,为16天左右。三季麻的叶面积均在黑杆始期出现高峰。在叶面积指数达到4以前,随叶面积的增长,群体对光的吸收能力迅速加大,距麻茎顶端10厘米处,叶群叶子分布最多。封行后冠层10厘米的光照强度降低39—89%。在高温高光强季节,高密度群体的下层光照强度常常可达光补偿点以上。
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