摘要
为了探明喷施槲皮素对板栗生长及坚果品质的影响,为槲皮素在板栗生产中的应用提供科学依据.以6年生燕山早丰板栗嫁接树为试材,以不同浓度(0、150、300、600、1 200 μmol/L)槲皮素进行叶面喷施,单株喷施500 mL,探讨对板栗叶片抗性指标、结果枝生长、产量及品质的影响.结果表明:喷施1 200μmol/L槲皮素可显著提高板栗叶片APX活性、CAT活性、可溶性糖含量、蛋白质含量,分别较对照提高了 141.2％、75.3％、40.0％、93.6％;喷施槲皮素可降低板栗空苞率,但对板栗枝条生长和产量影响不显著;喷施槲皮素主要提高了坚果可溶性糖含量与淀粉含量,喷施1 200 μmol/L槲皮素可溶性糖含量最高,较对照提升30.2％,喷施600 μmol/L槲皮素淀粉含量最高,较对照提升20.7％.通过主成分分析及隶属函数综合评价得出,喷施1 200 umol/L槲皮素为最优处理.
Abstract
In order to investigate the effects of quercetin spraying on the growth and nut quality of Chinese chestnut,and to provide a scientific basis for the application of quercetin in Chinese chestnut production.The grafted 6-year-old'Yanshanzaofeng'Chinese chestnut tree was used as the test material,and quercetin was sprayed at different concentrations(0 μmol/L,150 μmol/L,300 μmol/L,600 μmol/L,1 200 μmol/L)in foliar spraying,with 500 mL of quercetin in a single plant,to investigate the effects on the resistance indexes of Chinese chestnut leaves,fruiting branch growth,yield and quality.The results showed that spraying 1 200 μmol/L quercetin significantly increased APX activity,CAT activity,soluble sugar content and protein content of Chinese chestnut leaves by 141.2％,75.3％,40.0％and 93.6％,respectively,compared with the control.Spraying quercetin could significantly reduce the rate of empty bracts of Chinese chestnut,but had no significant effect on the growth and yield of Chinese chestnut branches;quercetin mainly improved the soluble sugar and starch content of nuts,and the spraying of 1 200 μmol/L had the highest content of soluble sugar,which was 30.2％higher than that of the control,and the spraying of 600 μmol/L had the highest content of starch,which was 20.7％higher than that of the control.Through principal component analysis and affiliation function,it was concluded that spraying 1 200 μmol/L quercetin spraying was the optimal treatment.
基金项目
河北省板栗产业协同创新中心项目(20210103)
板栗产业技术教育部工程研究中心项目(PT2022-01)
国家科技期刊平台
NSTL
万方数据