【作者】 李勃； 张林山； 许文平； 王世平；

【机构】 上海交通大学农业与生物学院； 山东省果树研究所；

【摘要】 本文以3年生"早酥"梨为材料,设置25 L、50 L、100 L、150 L四种根域容积处理,以大田栽培为对照,研究不同根域容积对3年生早酥梨营养生长和未成熟果实总糖含量的影响。试验结果表明,在单株叶片总面积、光合速率等150 L、100 L和50 L处理显著大干25 L处理,但150 L和100 L处理间差异不显著;在主干、侧枝横径方面,CK和150L显著大于其余三种处理;测得未成熟果实糖含量的结果是25 L、50 L、CK优于150L、100L。150L处理是进行早酥梨限根栽培的合理容积。更多还原

【Abstract】 The influence of different root-zone volume (25 L,50 L,100 L,150 L) on the vegetative growth and young fruit sugar content of"Zaosu"pear were studied.The results showed as follows:for total leaf area per plant and leaf photosynthetic rate of 5 treatments,150 L,100 L and 50 L treatment were significant higher than 25 L treatment,but no significant difference were found between 150 L and 100 L treatment;the diameter of trunk and shoots of control and 150 L treatment were significant higher than that of the other 3 treatments;the higher sugar content of 25 L,50 L and the control treatment were observed.更多还原