结果初期矮化中间砧苹果适宜负载量研究  

Research on Suitable Load of Drawfing Intermediate Stock Apple at Fruiting Early Stage

作　　者：薛晓敏[1] 王金政[1] 李仕凯 郑夕同 聂佩显[1] 

机构地区：[1]山东省果树研究所,山东泰安271000 [2]荣成市果茶技术推广站,山东荣成264300

出　　处：《山东农业科学》2013年第11期54-56,59,共4页Shandong Agricultural Sciences

基　　金：现代农业产业技术体系建设专项(CARS-28)资金资助

摘　　要：以4年生矮化中间砧红富士苹果为试材,研究了不同负载量处理对树体生长、果实品质及实际产量的影响。结果表明:随负载量增大,树高、冠径、新梢长度和干周增长率降低,单果重、果形指数变小,可溶性糖含量降低,果实硬度和可滴定酸含量无明显变化。负载量越大,落果越严重,实际采果数远低于预期处理,导致总体产量与中等负载量水平相差无几。综合分析认为处理3为较适宜的负载量水平,即每平方厘米干截面积留果1.50～2.00个为宜。Four year-old drawfing intermediate stock red Fuji apple trees were used to study the influences of different loads on tree growth,fruit quality and actual yield. The results showed that,with the increase of load,the tree height,crown diameter,new shoot length,growth rate of trunk perimeter and the soluble sugar content reduced,the single fruit weight and fruit shape index decreased,and the fruit firmness and titratable acid content had no significant change. The larger the load was,the more seriously the fruit dropped,so the actual harvest fruit number was much lower than that of expected,which resulted in the total yield was not much different from that of medium load level. Through comprehensive analysis,treatment 3,retaining 1. 50 ～ 2. 00 fruits per square centimeter of stem cross-sectional area,was considered as the suitable load level.

关 键 词：负载量 苹果 生长发育 品质 产量 

分 类 号：S661.101[农业科学—果树学]