摘要
施加GA3 等植物生长调节剂已成为提高果实品质的重要栽培管理手段,但施加GA3 对花椒果实品质的影响目前仍不清楚.为研究不同浓度GA3 处理在果实膨大期对大红袍花椒果实的外在品质和内在品质的影响,筛选出最优GA3 喷施浓度.选择大红袍花椒为研究对象,在花椒果实膨大期喷施浓度为25 mg/L,50 mg/L,75 mg/L和100 mg/L的GA3,待果实成熟采收后,分别测定果粒的纵径、横径、百粒重、果皮油囊数量、总挥发油、酰胺类化合物、不挥发性乙醚萃取物以及总黄酮指标.结果表明,坐果期喷施 75 mg/L GA3 时综合效果最好,果实纵径,横径,百粒重以及果皮油囊数量4 项外在品质指标分别提升14%、11%、12%和35%.果皮总挥发油、麻味物质、不挥发性乙醚萃取物和总黄酮4 项内在品质指标会显著提升33%、27%、13%和11%.本研究筛选出了提升花椒果实品质的最佳GA3 处理浓度,为花椒栽培管理提供了新的见解和思路.
Abstract
Application of plant growth regulators such as GA3 has become an important cultivation manage-ment tool to improve fruit quality,but the effect of GA3 application on Zanthoxylum bungeanum Maxim."Da-hongpao"fruit quality is still unclear.In order to investigate the effect of different GA3 concentrations on the ex-ternal and internal quality of"Dahongpao"fruits during fruit expansion,the optimum GA3 spraying concentration was selected.The fruit were sprayed at 25 mg/L,50 mg/L,75 mg/L and 100 mg/L during fruit set.After har-vesting,the longitudinal and transverse diameters,the weight of 100 grains,the number of pericarp oil capsules,the total volatile oil,the amide compounds,the non-volatile ether extract and the total flavonoids were meas-ured.The results showed that the best overall results were obtained when 75 mg/L GA3 was sprayed at fruit set,and the four external quality indicators,namely longitudinal diameter,transverse diameter,100 grain weight and number of oil capsules on the fruit skin,were improved by 14%,11%,12%and 35%respectively.The four intrinsic quality indicators,namely total peel volatile oil,pineness,non-volatile ether extract and total fla-vonoids,were significantly improved by 33%,27%,13%and 11%respectively.This study screened out the optimal GA3 treatment concentration for enhancing"Dahongpao"fruit quality,providing new insights and ideas for"Dahongpao"cultivation management.
基金项目
信阳农林学院青年教师科研基金项目(20200112)
NETL
NSTL
万方数据