摘要
低浓度NaHSO3处理能明显降低田间茶树遇早春大雪后茶芽和叶片的冻害,使茶芽恢复生长加快。同时,在低温下叶片电导率显著低于对照。NaHSO3处理可明显提高叶片光合速率,促进光能更多的由光系统Ⅱ向光系统Ⅰ转移,加速循环光合磷酸化,提高植物抗低温能力。
Foliage spraying NaHSO3 at low concentration could obviously decrease the numbers of frozen buds and leaves of tea trees grown in the fields when the trees encountered a heavy freezing injury in the early spring. It also speeded up the recovery growth of the buds and lowered the electrical conductivity of the leaves after the freezing injury. NaHSO3 could significantly increase photosynthetic rate of leaves and enhance light energy transfer from PS Ⅱ to PS Ⅰ. It also accelerated cyclic photophosphorylation and enhanced the resistance to freezing injury of tea trees.
出处
《浙江农业学报》
CSCD
2007年第3期184-187,共4页
Acta Agriculturae Zhejiangensis
基金
浙江省教育厅资助项目(20040183)
关键词
NAHSO3
茶树
抗低温
电导率
循环光合磷酸化
NaHSO3
tea tree
resistance to freezing injury
electrical conductivity
cyclic photophosphorylation
