不同植物生长调节剂处理对金艳猕猴桃果实品质的影响  

Effects of different plant growth regulators on fruit quality in Jinyan ki-wifruit

作　　者：毛积鹏 姚东良 公旭晨 陈璐 高柱[1,2,3] 王小玲[1,2] MAO Jipeng;YAO Dongliang;GONG Xuchen;CHEN Lu;GAO Zhu;WANG Xiaoling(Institute of Biological Resources,Jiangxi Academy of Sciences/Jiangxi Provincial Key Laboratory of Plantation and High Valued Utili-zation of Specialty Fruit Tree and Tea,Nanchang 330096,Jiangxi,China;Institute of Biological Resources,Jiangxi Academy of Scienc-es/Jiangxi Kiwifruit Engineering Research Center,Nanchang 330096,Jiangxi,China;Jinggangshan Institute of Biotechnology,Jiangxi Academy of Sciences,Ji'an 343016,Jiangxi,China)

机构地区：[1]江西省科学院生物资源研究所·特色果树茶叶种植与高值利用江西省重点实验室,南昌330096 [2]江西省科学院生物资源研究所·江西省猕猴桃工程研究中心,南昌330096 [3]江西省科学院井冈山生物技术研究院,吉安343016

出　　处：《果树学报》2024年第11期2272-2284,共13页Journal of Fruit Science

基　　金：江西省科学院国家级人才培育项目(2022YRCC001);江西省科学院包干制重点研发计划项目(2023YSBG21003);江西省科学院博士项目(2022YYB01)。

摘　　要：[目的]探索不同植物生长调节剂处理对猕猴桃果实生长发育及采后品质的影响。[方法]以金艳为研究对象,授粉后25~30 d分别用不同质量浓度的赤霉素(GA_(3))、氯吡脲(CPPU)、三十烷醇(Tri)、萘乙酸(NAA)、吲哚乙酸(IAA)、6-苄氨基腺嘌呤(6-BA)、褪黑素(MT)和色氨酸(Trp)进行喷施处理,测定果实外观和品质指标。[结果]所有处理均显著提高了果实单果质量,降低了果形指数。CPPU可促进果实成熟和淀粉积累,Tri和NAA分别抑制淀粉积累和延缓果实成熟。MT、Trp和NAA处理显著提高了果实硬度,CPPU和NAA分别促进与抑制果实软化和可溶性固形物含量。CPPU、Tri和Trp处理降低了抗坏血酸含量,MT处理提高了抗坏血酸含量。适宜浓度的GA_(3)、NAA、MT、CP-PU、IAA、Tri和Trp对不同糖组分的积累和有机酸组分的降解具促进作用。[结论]不同的植物生长调节剂对猕猴桃果实的外观和品质指标具有不同促进或抑制作用,适宜浓度的CPPU、NAA和MT复合处理有望提高金艳猕猴桃果实的综合品质。【Objective】Kiwifruit(Actinidia spp.)originated in China,is an important part of China’s fruit food in the“Big Food View”perspective.Kiwifruit has become one of the most popular fruits be-cause of its unique flavor and rich nutrients such as vitamin C,amino acids,organic acids,soluble sug-ars and minerals.Plant growth regulators have many physiological effects,such as enhancing plant re-sistance,regulating fruit size,pigment accumulation level,saccharic acid component content,and matu-ration and senescence process.Improper use of plant growth regulators can easily lead to high mal-formed fruit rate,dark skin color,early physiological ripening,large inventory loss and low fruit quali-ty,which leads to the decline of comprehensive quality of postharvest kiwifruit.The present experiment was undertaken to explore the effects of different plant growth regulators on the growth and postharvest quality of kiwifruit.【Methods】Jinyan kiwifruit was treated with different concentrations of GA3(50,100 and 200 mg·L^(-1)),CPPU(5,10 and 20 mg·L^(-1)),triacotanol(5,10 and 20 mg·L^(-1)),NAA(50,100 and 200 mg·L^(-1)),IAA(20,40 and 80 mg·L^(-1)),6-BA(25,50 and 100 mg·L^(-1)),melatonin(10,20 and 40 mg·L^(-1))and tryptophan(100,200 and 400 mg·L^(-1))after 25-30 d of pollination.The water treatment served as control(CK),and three plants were treated with each concentration of every plant growth reg-ulator as three biological replicates.After 140 d of pollination,20 fruits were selected every 2 d for the determination of soluble solid content.When the SSC content was higher than 6.5%,it was recorded as the physiological maturity stage of the treatment.At the physiological maturity stage of corresponding treatment,120 healthy fruits were randomly selected from each plant for index determination.They were placed at room temperature until soft ripeness(80%of the fruits were less than 1.2 kg·cm^(-2) in hardness),and 9 fruits were randomly selected every 2 d for hardness index determination.After soft ripening,soluble so

关 键 词：猕猴桃 植物生长调节剂 果实发育 果实品质 

分 类 号：S663.4[农业科学—果树学]