【作者】 黄兴法； 刘志敏； 王小伟；

【Author】 Huang Xingfa, Liu Zhimin, Wang Xiaowei (College of Machinery Engineering, China Agricultural University, Beijing 100083, China; Beijing Horticutural Research Institute, Beijing 100093, China)

【机构】 中国农业大学； 北京林业果树研究所；

【摘要】 研究了不同阶段不同亏水度对盆栽桃树座果率、新梢和果实的生长、可溶性固形物含量的影响。讨论了桃树各处理的土水势情况,分析了桃树座果率、新梢和果实的生长在各时期不同亏水度的情况下的变化规律。试验结果初步表明,在试验条件下,早期控水对座果率影响很大,座果率与早期控水程度呈反方向变化。受水分胁迫处理的新梢生长比充分灌水的慢。果实因水分胁迫的变化比较复杂,早期处理的单果的体积和质量为最大,调亏灌溉 (RDI)期次之,充分灌水最小,但由于各处理座果有差异,单树产量以早期中度控水最大,其次为RDI期中度控水。早期控水对桃树果实可溶性固形物含量没有太大的影响,但RDI期控水对桃树果实可溶性固形物含量影响较大, 随着控水度的增加,固形物的含量也随着增大。更多还原

【Abstract】 This paper discusses the effects of soil water deficit at different growth stages of potted peach trees on fruit set percentage, shoot and fruit growth. Data from experiments carried out in peach field were analyzed and soil water potential variation was described. The regularities of fruit set percentage, shoot growth, fruit growth, fruit total soluble solid matter under different soil water deficit treatments were analyzed. The experimental results show that fruit set percentage is related to soil water deficit, the severer soil water deficit the peach undergoes, the less fruit set percentage is; shoot growth under soil water deficit is slower than that under full irrigation; the effects of soil water deficit on fruit growth are complex; fruit total soluble solid matter is not affected during flowering but is affected during regulated deficit irrigation stage.更多还原