IS STOMATAL CONDUCTANCE IN A TOMATO CROP CONTROLLED BY SOIL OR ATMOSPHERE

被引:22
|
作者
FERREIRA, MI [1 ]
KATERJI, N [1 ]
机构
[1] INRA, BIOCLIMATOL STN, F-78850 THIVERVAL GRIGNON, FRANCE
关键词
STOMATAL CONDUCTANCE; AIR VAPOR PRESSURE DEFICIT; LYCOPERSICON-ESCULENTUM MILL; SOIL WATER DEFICIT;
D O I
10.1007/BF00317269
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The effects of soil water deficits and air vapour pressure deficits on stomatal conductance of tomato leaves were analysed separately under field conditions in central Portugal. Three conditions were created: low soil and air humidity (A), high soil and air humidity (B) and low soil but high air humidity (C). The results show that the effect of air vapour pressure deficit on stomatal behaviour is more important than the effect of soil water deficit when the predawn leaf water potential is above -0.4 MPa.
引用
收藏
页码:104 / 107
页数:4
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