摘要
以盆栽新红星苹果树为试材 ,研究了土壤干旱条件下果实对水分利用效率(WUE)及有关参数日变化的影响。结果表明 :有果短枝叶的 WUE高于无果短枝叶 ,有果短枝叶的叶水势 (Ψ w)和相对含水量 (RWC)高于无果短枝叶。果实对
Potted Starkrimson apple trees were used as materials in the experiment. Effects of fruit on water use efficiency (WUE) and relevant parameters were studied under soil drought. Results showed that WUE, water potential (Ψw) and relative water content (RWC) of leaves on spur with fruits were higher than those on spur without fruits because of shortage of water. The regulation of fruits of WUE of leaves around them resulted from both the improvement of photosynthetic rate (Pn) and the reduction of transpiration rate (Tr).
出处
《干旱地区农业研究》
CSCD
北大核心
2000年第2期86-90,共5页
Agricultural Research in the Arid Areas
基金
山东省科委资助项目! ( 9610 10 4 0 3)
关键词
苹果果实
干旱
水分利用效率
土壤
apple fruits
drought stress
water use efficiency(WUE)
