EFFECTS OF OZONE ON GROWTH AND GAS-EXCHANGE OF EUCALYPTUS-GLOBULUS SEEDLINGS

被引：16

作者：

PEARSON, M

机构：

来源：

TREE PHYSIOLOGY | 1995年 / 15卷 / 03期

关键词：

AIR POLLUTION; BIOMASS; STOMATA; STOMATAL CONDUCTANCE;

D O I：

10.1093/treephys/15.3.207

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

To study the effects of a low concentration of ozone on growth and gas exchange in Eucalyptus globulus Labill. seedlings, ozone was applied for 37 days at a concentration of 50 ppb for 7 h daily under conditions of low light (250 mu mol m(-2)s(-1) (PAR)) and controlled temperature (20 degrees C). The seedlings exhibited extreme sensitivity to ozone. The ozone treatment reduced total plant biomass but had no effect on the partitioning of assimilate. Photosynthesis, stomatal conductance and internal CO2 concentration were all reduced by photosynthesis was partly the result of direct effects of ozone on the stomata.

引用

页码：207 / 210

页数：4

共 27 条

[1] EFFECTS OF LOW-LEVEL OZONE EXPOSURE UNDER AMBIENT CONDITIONS ON PHOTOSYNTHESIS AND STOMATAL CONTROL OF VICIA-FABA L [J].