摘要
折枝处理降低了叶片下表皮蒸腾速率,提高了上表皮角质蒸腾占叶总蒸腾的比值,使角质蒸腾的上下振幅增大。2 m 高度叶片低于1 m 高度叶片的上表皮角质蒸腾。位于黑纸套内及阴处的叶片上表皮角质蒸腾占叶总蒸腾的比值均增大,而全日上表皮角质蒸腾的振幅却减少。
The disposat of breaking off a branch reduas He lower epidermis transpiration rate of a blade and raises upper epidermis cuticle transpiration which has the totle transpiration specific of a blade.So it makes the amplitude of cuticle transpiration increase,An upper epidermis cuticle transpiration of a blade about a meters is below a blade about I meter.The upper epidermis cuticle transpiration of the blade which lies in the black paper cover or a dark covner has the totle transpiration specific of the blade.also it becomes to increase.But the amplitude of upper epidermis cuticle tranepination in a day becomes to reduce.
出处
《生物学杂志》
CAS
CSCD
1999年第4期29-30,共2页
Journal of Biology
关键词
桃树
折枝
气孔蒸腾
角质蒸腾
peach
the disposal of breaking off a branch
stoma transpiration