萘乙酸对三种园林树木的疏花疏果效应  

Thinning Effect of NAA on Three Species of Garden Trees

作　　者：魏立颖[1] 赵立伟 李金龙[1] 陈蔷[1] 高微 

机构地区：[1]天津市北方园林生态科学技术研究所,天津300300 [2]天津绿动植物营养技术开发有限公司,天津300300

出　　处：《天津农业科学》2013年第12期91-94,共4页Tianjin Agricultural Sciences

摘　　要：为了保证园林观赏果树具有较强的营养生长，采用花量调控技术抑制春季萌芽过程中的开花营养消耗和中后期的果实营养消耗，使养分集中于营养生长。以12年生八棱海棠、3年生山楂、5年生富士苹果为试材，研究了萘乙酸春季喷洒的疏花疏果效应。试验结果表明：12年生八棱海棠喷施萘乙酸浓度为20mg·L-1时，花序空台率最高，为36．1％；3年生山楂喷施萘乙酸浓度为10-40mg·L-1时，花序空台率为41．1％-54．2％；5年生富士苹果喷施萘乙酸浓度为5~40mg·L-1。时，花序空台率为86．O％-92．8％。In order to ensure a strong ability of vegetative growth of ornamental fruit trees, nutrient consumption has been inhibited during flowering phase in spring and fruit formation period by using flowering regulation technology. With 12-year-old eight arris Begonia, 3-year-old hawthorn and 5-year-old Fuji apple as the test materials, the thinning effects of NAA spraying in spring have been studied. The results indicated that： as to 12-year-old eight arris Begonia, the rate of inflorescence empty sets was the highest, reaching to 36.1% by spraying NAA in 20 rag. L-1. And the rate of inflorescence empty sets of 3-year-old hawthorn ranged from 41.1% to 54.2% by spraying NAA in 10-40 mg. L-l. While the rate of inflorescence empty sets of 5-year-old Fuji apple ranged from 86.0% to 92.8% by spraying NAA in 5-40 mg. L-j.

关 键 词：八棱海棠 山楂 富士苹果 化学疏花疏果 萘乙酸 空台率 

分 类 号：S718.43[农业科学—林学]