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对信阳市13个水稻主栽品种的稻瘟病抗性进行人工接种鉴定和田间自然诱发鉴定,结果表明,对稻瘟病高抗的品种没有,抗及中抗占23.1%,中感及感病占46.2%,高感占30.7%。根据信阳市水稻主栽品种对稻瘟病的抗性鉴定结果和各县区当地的气候特点、种植方式、水肥条件等因素,提出了不同抗性水平品种的适宜推广地区。最大程度地减轻稻瘟病危害。
The blast resistance test of 13 rice cultivars in Xinyang City was carried out by artificial inoculation and natural induction test. The results showed that there was no anti-blast resistance and moderate resistance in 23.1% 46.2%, high sense of 30.7%. According to the identification results of rice cultivars in Xinyang to rice blast and the local climatic characteristics, planting methods, water and fertilizer conditions and other factors in different counties, the suitable popularization areas for different resistant varieties were proposed. Minimize the hazards of blast.