植物遗传资源学报2026，Vol.27Issue(3)：516-527,12.DOI:10.13430/j.cnki.jpgr.20251101001
新疆及中亚特色梨种质资源对腐烂病抗性的综合评价
Comprehensive Evaluation of Resistance to Valsa Canker in Pear Germplasm Resources from Xinjiang and Central Asia
摘要
Abstract
Pear Valsa canker is a major disease that threatens the sustainable development of the pear industry.Exploration and utilization of resistant germplasm represent a fundamental strategy for effective disease management.In this study,105 pear accessions were evaluated for resistance to Valsa canker using an integrated approach combining detached twig inoculation and field assessment post natural infection.Lesion length and disease index ratings served as the primary evaluation criteria.A comprehensive resistance index was derived through principal component analysis to classify the accessions and identify elite resistant germplasm.The results revealed substantial diversity in resistance among pear germplasm originating from Xinjiang and Central Asia.Seven accessions(6.7％)were classified as highly resistant(HR),predominantly from Pyrus sinkiangensis(e.g.,Bayueli,Taxiamut)and Pyrus betulifolia.Twenty-three accessions(21.9％)were rated as resistant(R),such as Heisuanli and Lüli;another 23(21.9％)were moderately resistant(MR),including Kuerle Huangsuanli and Aksu Jujuli.In contrast,39 accessions(37.1％)including Huang Jujuli and Bikai 1,were susceptible(S),and 13(12.4％)including Huocheng Donghuangli and Zimonayeke,were identified as highly susceptible(HS).This work provides a robust scientific basis for selecting resistant parents in pear breeding programs and highlights the untapped potential of unique pear germplasm from Xinjiang and Central Asia for genetic improvement and durable resistance against Valsa canker.关键词
梨/种质资源/腐烂病/抗性鉴定/综合评价Key words
pear/germplasm resources/Valsa canker/resistance identification/comprehensive evaluation引用本文复制引用
王绍鹏,王尚栋,周伟权,谢金超,韩毅,阿曼古丽·吾斯曼,章世奎..新疆及中亚特色梨种质资源对腐烂病抗性的综合评价[J].植物遗传资源学报,2026,27(3):516-527,12.基金项目
新疆农业科学院青年科技骨干创新能力培养项目(xjnkq-2023038) （xjnkq-2023038）
2025年自治区林草专项资金项目 （）
农业农村部物种保护与利用项目(22250306)Young Science and Technology Backbone Innovation Ability Training Program of Xinjiang Academy of Agricultural Sciences(xjnkq-2023038) （22250306）
2025 Autonomous Region Forestry and Grassland Special Funds Projects （）
Special Fund for Crop Germplasm Protection and Utility of the Ministry of Agriculture and Rural Affairs(22250306) （22250306）
