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.
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
关键词
负载量
苹果
生长发育
品质
产量
Load
Apple
Growth and development
Quality
Yield
