在温室对以品种G278、G279、板桥B为砧木,以品种K326、红花大金元、云烟87为接穗的9个烟草嫁接组合进行盆栽试验,接种最常见的南方根结线虫,采用病理学指标聚类分析法、生物学指标以及病理学指标隶属函数值法综合评价了烟草嫁接组合对根结线虫病的抗性.结果表明:板桥B+K326、G278+云烟87、G279+K326、G279+云烟87、G278+K326、G278+红花大金元、G279+红花大金元、板桥B+云烟87和板桥B+红花大金元等嫁接组合抗根结线虫病,砧木和接穗品种中K326、G278、G279表现为抗病,云烟87表现为中感,板桥B表现为中抗,红花大金元表现为感病.采用嫁接技术可以有效地增强烟草品种对根结线虫病的抗性.
G278,G279 and Banqiao B were used as rootstocks,and K326,Honghua Dajinyuan and Yunyan 87 were used as scions.The resistance to root-knot nematode disease was assessed by cluster analysis of pathology indicators,membership function values of biological indicators and membership function values of pathology indicators through inoculating greenhouse pots with the most prevalent southern root-knot nematode.The results showed that the grafting combinations of Banqiao B+K326,G278+Yunyan 87,G279+K326,G279+Yunyan 87,G278+K326,G278+Honghua Dajinyuan,G279+Honghua Dajinyuan,Banqiao B+Yunyan 87 and Banqiao B+Honghua Dajinyuan exhibited resistance to root-knot nematode disease.Additionally,the rootstock and scion varieties K326,G278 and G279 displayed resistance.The resistance level of Yunyan 87 was moderately sensitive,and that of Banqiao B was moderately resistant,while Honghua Dajinyuan exhibited susceptibility to the disease.Therefore,grafting technology can effectively enhance the resistance of tobacco varieties to root-knot nematode disease.
李乾坤;徐兴阳;杨艳梅;王连花;端永明;胡先奇
云南农业大学 植物保护学院/省部共建云南生物资源保护与利用国家重点实验室,云南 昆明 650201云南省烟草公司 昆明市公司技术中心,云南 昆明 650051
植物保护学
烟草;嫁接;根结线虫病;抗性;鉴定
Tobacco;Grafting;Root-knot nematode disease;Resistance;Identification
《江西农业学报》 2024 (003)
40-46 / 7
云南省烟草公司昆明市公司科技计划项目(KMYC202302).
10.19386/j.cnki.jxnyxb.2024.03.007
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