茶叶学报2025，Vol.66Issue(2)：36-43,8.DOI:10.20045/j.cnki.issn.2096-0220.2025.02.005
'梅占'与'福云6号'茶树品种的茶橙瘿螨抗性差异及其与叶片形态结构、生化成分的相关性
Correlation Between Resistance to Acaphylla theae and Morphological and Biochemical Characteristics of Tea Plants
摘要
Abstract
[Objective]Correlation between the resistance to infestation and the leaf morphological properties and chemical composition of tea plants was investigated for improved pest control and new variety breeding.[Method]Natural Acaphylla theae population dynamics at the planting fields of'Meizhan'and'Fuyun 6'tea bushes were monitored.Leaves of the plants at the lots were collected to measure the trichome density under a stereomicroscope,leaf area with a vernier caliper,contents of free amino acids,photosynthetic pigments,tea polyphenols,and total flavonoids by spectrophotometry,and caffeine and flavonoid components including naringenin,quercetin,myricetin,apigenin using HPLC.Statistically,the mite population was correlated to the leaf morphology and chemistry of the tea cultivars at a same field.[Result]The population of A.theae at the'Fuyun 6'lot was significantly more numerous than at the'Meizhan'lot.And the area,trichome density,and contents of chlorophyll a,chlorophyll b,and total chlorophyll of the leaves of'Fuyun 6'were significantly higher than those of'Meizhan'plants.However,the young'Meizhan'shoots contained significantly more caffeine,total flavonoids,naringenin,quercetin,myricetin,and apigenin than the'Fuyun 6'counterparts.A significant positive correlation was observed between the A.theae density of leaf and the content of chlorophyll a,chlorophyll b,total chlorophyll,naringin and the leaf length,a highly significant positive correlation with leaf area,while the correlation was negative between the pest population and the content of naringenin and quercetin.[Conclusion]According to the surveyed A.theae population in the fields,'Meizhan'tea bushes appeared more resistant to A.theae infestation than did'Fuyun 6'.The biochemicals responsible for the differentiation might include chlorophyll a,chlorophyll b,total chlorophyll,quercetin and naringenin contained in the leaves of the different varieties of tea cultivars.This study provides a theoretical basis for the comprehensive management of A.theae and resistance breeding.关键词
茶树/茶橙瘿螨/生化物质/形态结构/抗性Key words
Tea plants/Acaphylla theae/biochemicals/morphological properties/resistance分类
农业科学引用本文复制引用
张辉,李慧玲,刘丰静,李良德,王庆森,王定锋..'梅占'与'福云6号'茶树品种的茶橙瘿螨抗性差异及其与叶片形态结构、生化成分的相关性[J].茶叶学报,2025,66(2):36-43,8.基金项目
福建省属公益类科研院所基本科研项目—自主类项目(2021R1029005) （2021R1029005）
福建省农业科学院青年英才项目(YC2021008) （YC2021008）
福建省科技重大专项(2024NZ029030) （2024NZ029030）
国家现代农业(茶叶)产业技术体系(CARS-19). （茶叶）
