安徽农业大学学报2025，Vol.52Issue(5)：835-841,7.DOI:10.13610/j.cnki.1672-352x.20251107.010
番木瓜根结线虫病病原鉴定与对种质资源的抗性评价
Identification of root knot nematodes of papaya and evaluation of resistance to germplasm resources
摘要
Abstract
[Objective]This study aimed to identify the pathogenic species of papaya root knot nematode disease in Hainan Province and the resistance of papaya germplasm resources to root knot nematode.[Method]The root knot nematode disease of papaya plantations in 8 cities and counties of Hainan Island was investigated and sampled by five-point sampling method.The species of root knot nematode were identified by morphological observation and comparison of perineal patterns and SCAR-PCR.At the same time,53 papaya germplasm re-sources collected were used to determine the resistance of root knot nematodes of papaya.[Result]The root-knot nematode species that harm Hainan papaya were Meloidogyne incognita and M.enterolobii with the proportion of 60%and 40%,respectively.The test of disease resistance of 53 papaya cultivars to M.incognita indicated that 9 of them showed high resistance,19 showed disease resistance,21 showed medium resistance,3 showed disease susceptibility and 1 showed high sensitivity to M.incognita;the test of disease resistance of 53 papaya cultivars to M.enterolobii indicated that 4 showed high resistance,10 showed disease resistance,26 showed medium re-sistance,12 showed disease sensitivity,and 1 showed high sensitivity.[Conclusion]The dominant population of papaya root knot nematodes in Hainan is M.incognita,while M.enterolobii is more infectious.关键词
番木瓜/根结线虫/鉴定/抗性评价Key words
papaya/root knot nematode/identification/resistance evaluation分类
农业科技引用本文复制引用
符美英,罗激光,练冬梅,陈绵才,贾瑞宗,卜小莉,王会芳..番木瓜根结线虫病病原鉴定与对种质资源的抗性评价[J].安徽农业大学学报,2025,52(5):835-841,7.基金项目
海南省重点研发项目(ZDYF2022XDNY257) （ZDYF2022XDNY257）
