The Effect of Wind on Grasses
The Effect of Wind on Grasses
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发表时间：
1978
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影响因子：
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通讯作者：
G. Russell;J. Grace
中科院分区：
文献类型：
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作者：
G. Russell;J. Grace
Festuca arundicacea 和黑麦草在受控环境风洞中以高风速 (7-4 m s-1) 或低风速 (1-0 m s-1) 生长。高风速下叶片伸长率明显降低。这种效应不能归因于水分胁迫，因为虽然叶片电导率随着暴露在强风中而增加，但没有检测到对叶片水势的影响。当风速改变时，光合作用的速率也没有受到影响。此外，风洞中的乙烯浓度太低，无法解释观测结果。这表明机械刺激本身可能导致叶片生长速度降低。
Festuca arundicacea and Lolium perenne were grown in a controlled-environment wind tunnel at high (7-4 m s-1) or low (1-0 m s-1) windspeed. The rate of leaf extension was markedly reduced at the high windspeed. This effect could not be attributed to water stress, for, although the leaf conductance increased with exposure to high wind, no effect on leaf water potential was detected. Nor was the rate of photosynthesis affected when the windspeed was changed. Moreover, concen trations of ethylene in the wind tunnel were too low to explain the observations. It is suggested that mechanical stimulus itself may have caused the reduction in leaf growth rate.