摘要
气孔是作物与大气进行水汽和CO_2交换的通道,当环境条件发生变化时,作物通过调节气孔的开度来控制叶片内部和外部的气体交换速率。作物群体中叶片两面的小生境有明显差异。
Field experiment shows:1.Large difference can be found in the stomatal conductance bet-ween two sides of corn and wheat leaves.The adaxial side of wheat leaves has a largerStomatal conductance,but the abaxial side of corn leaves does.2.The abaxial stomata ofwheat leaves is more sensitive to the environmental variations,whereas the adaxial stomataof corn leaves is.3.When sufficient soil water supply is available,the ratio of stomatalconductance between two sides of wheat leaves is constant (about 1.50),but changes greatlyfor corn leaves.
出处
《生态学杂志》
CAS
CSCD
北大核心
1990年第5期19-21,25,共4页
Chinese Journal of Ecology
关键词
小麦
玉米
叶片气孔导性
环境因素
stomatal conductance
environmental factor
wheat
corn
