云南保山煙草青枯病的病原鑒定及發(fā)生規(guī)律
Pathogen Identification of Ralstonia solanacearum E. F Smith on Tobacco and its Occurrence in Baoshan
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摘要: 通過對保山烤煙大田煙株莖下部出現(xiàn)黑色壞死癥狀進行調(diào)查,、鑒定，發(fā)現(xiàn)其主要原因為煙草青枯病菌（Ralstonia solanacearum E.F Smith）侵染,。本文分析了該病發(fā)生流行與烤煙品種,、土壤環(huán)境、氣候條件及栽培管理等因素的密切關(guān)系,，提出了農(nóng)業(yè)綜合防治煙草青枯病的措施,。Abstract: The results of investigation and identification showed that black necrosis symptom of the lower stem of flue-cured tobacco plants in Baoshan was mainly induced by the infection of Ralstonia solanacearum E. F Smith. The occurrence and prevalence of Ralstonia solanacearum E. F Smith had close relationship to tobacco variety, soil, climate and cultivation management. In this regard, some agricultural measures for integrated control of Ralstonia solanacearum E. F Smith were put forward.
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