【摘要】 试验以6年生‘农大4号’欧李为试材,于盛花期分别喷施不同浓度的3种疏花剂,测定植株坐果率、成熟期果实产量及糖酸含量。结果表明:喷施1.0 Be°石硫合剂可显著提高平均单果重和可溶性固形物含量,平均单枝果重和可滴定酸含量也有提高。喷施20 mg/L萘乙酸或10.0 g/L的施易乐效果较好。建议在欧李盛花期喷施1.0 Be°石硫合剂进行疏花。更多还原

【Abstract】 Using 6 year-old Cerasus humilis cultivar ‘Nongda 4’ as material,different concentrations of 3 kinds of chemical flower thinning agents were sprayed at full-bloom stage. The fruit setting rate,yield and quality( sugar and acid content) were determinated. The results showed that spraying 1. 0 Be° lime sulphur significantly increased the mean single fruit weight and soluble solid content. Meanwhile,the mean fruit weight per branch and titrable acid content were also increased. Spraying 20 mg / L NAA or 10. 0 g / L Shiyile also had better effects. In conclusion,spraying 1. 0 Be° lime sulphur at full-bloom stage was suitable for flower thinning of Cerasus humilis.更多还原