长富2号苹果化学疏花疏果的效果  

The study on chemical flower and fruit thinning of Changfu NO.2 apple

作　　者：袁仲玉 史涛 韦德闯 朱佳顺 柴相让 王锦锋 YUAN Zhongyu;SHI Tao;WEI Dechuang;ZHU Jiashun;CHAI Xiangrang;WANG Jinfeng(Longdong University,Xifeng,Gansu 745000,China;Qingcheng Apple Experiment and Demonstration Station,Qingcheng,Gansu 745100,China)

机构地区：[1]陇东学院,甘肃西峰745000 [2]庆城县苹果试验示范站,甘肃庆城745100

出　　处：《落叶果树》2023年第4期21-24,共4页Deciduous Fruits

基　　金：庆阳市科技支撑计划项目(QNKB2-5);庆阳市农业农村类项目(QY2021A-N004)。

摘　　要：探究不同化学疏花疏果剂对苹果疏花疏果的效果和对果实品质、产量的影响。分别以1 g/L、2 g/L苯嗪草酮,2%硫代硫酸铵、4%硫代硫酸铵,0.047 g/L 6-BA+0.047 g/L GA_(4+7)为疏花疏果剂,分别在9年生长富2号苹果全树开花80%时,幼果直径6~8 mm时、10~12 mm时,进行喷布,以喷清水为对照。结果表明,各药剂处理均对长富2号苹果的花果具有显著的疏除效果,显著降低了坐果率;对果实的外观品质、内在品质、果实商品率、单产具有不同的作用效果,除处理Ⅴ(0.047 g/L 6-BA+0.047 g/L GA_(4+7))花果疏除率最高,为41%大,但果实外观果锈明显,果面光洁度指数下降外,其他处理的效果都较好。综合花果疏除率、果实外观品质、内在品质、果实商品率、单产等指标的高低认为,以处理Ⅱ(2 g/L苯嗪草酮)、处理Ⅳ(4%硫代硫酸铵)的效果较好,可用于庆阳地区长富2号苹果的化学疏花疏果。Explore the effects of different chemical flower and fruit thinning agents on apple flower and fruit thinning,as well as their impact on fruit quality and yield.Take 1 g/L,2 g/L benzochlor,2%Ammonium thiosulfate,4%Ammonium thiosulfate,0.047 g/L 6-BA+0.047 g/L GA_(4+7)is a flower and fruit thinning agent.It is sprayed when 80%of the entire tree of Changfu NO.2 apple is in bloom,when the diameter of the young fruit is 6~8 mm,and when the diameter of the young fruit is 10~12 mm,with water spraying as the control.The results showed that all chemical treatments had a significant thinning effect on the flowers and fruits of Changfu NO.2 apple,significantly reducing the fruit setting rate;It has different effects on the appearance quality,internal quality,fruit commodity rate,and yield of fruits.Except for the treatmentⅤ(0.047 g/L 6-BA+0.047 g/L GA_(4+7)),which has the highest flower and fruit thinning rate of 41%,the fruit appearance rust is obvious,and the fruit surface smoothness index decreases.All other treatments have better effects.Considering the flower and fruit thinning rate,fruit appearance quality,internal quality,fruit commodity rate,yield per unit area and other indicators,it is considered that the treatmentⅡ(2 g/L benzochlor)and treatmentⅣ(4%Ammonium thiosulfate)are better,which can be used for chemical flower and fruit thinning of Changfu No.2 apple in Qingyang area.

关 键 词：苹果 富士 化学疏花疏果 产量 品质 

分 类 号：S661.1[农业科学—果树学]