中外葡萄与葡萄酒Issue(2)：30-37,8.DOI:10.13414/j.cnki.zwpp.2025.02.004
喷施不同诱抗剂对葡萄热害及果实品质的影响
Effects of Spraying Different Resistance Inducers on Heat Injury and Fruit Quality of Grape
摘要
Abstract
To investigate the effects of resistance inducers on heat damage and fruit quality of grape,six elicitors,namely trichoderma harzianum(YT1),3%oligosaccharide·3%chain protein(YT2),5%aminooligosaccharide(YT3),1%lentinan(YT4),potassium fulvic acid(YT5),and seaweed extract(YT6),were sprayed on'Shine Muscat'grapevine.The results showed that all elicitors could reduce the incidence rate of heat injury.YT5 showed optimal performance with the lowest heat injury rate(4.0%)and higher soluble solids content(19.8%).YT6 treatment produced larger grape clusters and berries(723.5 g and 11.6 g,respectively).From the perspective of leaf structure,YT5 and YT6 treatments increased leaf thickness by 35.9%and 34.4%,mesophyll thickness by 44.2%,and spongy tissue thickness by 60.7%and 66.1%,respectively,compared to control.Chlorophyll content significantly increased by 13.0%and 7.7%in YT5 and YT6 treatments.Correlation analysis revealed a extremely significant positive correlation between heat injury index and titratable acid content,while spongy tissue thickness showed significantly negative correlations with heat injury rate and index,suggesting that it could serve as a key indicator for evaluating heat injury.Principal component analysis ranked the inducers as YT5>YT6>YT4>YT2>YT3>YCK>YT1.Potassium fulvic acid(YT5)exhibited remarkable efficacy in preventing leaf heat injury,increasing soluble solids content,and improving photosynthetic capacity.关键词
葡萄/诱抗剂/生长/热害/品质Key words
grape/elicitors/growth/heat injury/quality分类
园艺学与植物营养学引用本文复制引用
沈雷定,李燕,陈烨锜,郑婷,魏灵珠,向江,吴江,程建徽..喷施不同诱抗剂对葡萄热害及果实品质的影响[J].中外葡萄与葡萄酒,2025,(2):30-37,8.基金项目
浙江省农业(果品)新品种选育重大科技专项(2021C02066-6) （果品）
浙江省三农九方科技协作计划(2023SNJF018)财政部和农业农村部:国家现代农业产业技术体系(CARS-29-13) （2023SNJF018）
