摘要
Abstract
To clarify the regulatory effects of spraying different concentrations of 2,4-epibrassinolide(2,4-EBR)on the growth of honey peach,this study used 6-year-old Zhongyoupantao No.7 as the experimental material.Five 2,4-EBR spray concentration treatments were established:0(CK),0.1,0.5,1.0,and 2.0 mg/L.The leaf photosynthetic characteristics,yield,appearance quality,and fruit quality of honey peach under different treatments were comparatively analyzed.The results showed that the appropriate concentration of 2,4-EBR significantly enhanced the photosynthetic capacity,fruit yield,and quality of honey peach.The net photosynthetic rate and transpiration rate reached the highest values under the 0.5 mg/L treatment,increasing by 18.84%and 29.06%,respectively,compared with CK.The maximum yield was also achieved at 0.5 mg/L,reaching 3 524.73 kg/hm2,which was 28.78%higher than that of CK.In terms of fruit quality,the 0.5 mg/L treatment resulted in relatively better values for single fruit weight,soluble solids,soluble sugars,sugar-acid ratio,and total flavonoid content,at 341.15 g,18.25%,15.48%,34.40,and 4.81 mg/g,respectively.In summary,the recommended spray concentration of 2,4-EBR for peach cultivation in the study area is 0.5 mg/L.关键词
蜜桃/2,4-表油菜素内酯/光合特性/果实品质Key words
honey peach/2,4-epibrassinolide/photosynthetic characteristics/fruit quality分类
农业科技
