摘要
根外施钾可提高苹果幼树叶片的相对含水量,且多次根外施钾对叶片相对含水量的增加具叠加效应,但并不改变其年变化规律;根外施钾可提早蒸腾速率日周期中高峰的出现;在年周期的大部分时间内,根外施钾可促进树体蒸腾速率,保证了光合速率的有效进行。
Spraying potassium increased leal relative water content of young apple trees, and had accumulative effect on it af-ter several spraying,but can not change it regulation during year changes; Spraying potassium made the peak of transpira-tion rate emerging earlier during diurnal change;In most times of year changes,spraying potassium improved transpirationrate,then made sure of photosynthetic rate high.
出处
《果树学报》
CAS
CSCD
北大核心
2002年第1期64-66,共3页
Journal of Fruit Science
