推广杂交稻,是我省水稻增产的战略措施。要保证杂交稻持续稳产高产,除了抓好栽培管理等一系列技术措施外,同时还要做好防治稻瘟病的工作。现仅就杂交稻抗稻瘟病谱反应及其利用问题,提出一些看法。 (一)稻瘟病菌生理小种种群的变动与品种抗性的丧失品种抗病性是指病原菌对品种的致病反应,抗病性是品种与病原菌相互作用的表现形 The promotion of hybrid rice is a strategic measure for rice production in our province. To ensure a steady and high yield of hybrid rice, apart from doing a good job of cultivation and management and a series of technical measures, we must also do a good job in preventing and controlling rice blast. Only the hybrid rice response to rice blast response and its utilization, put forward some views. (A) changes in physiological races of Magnaporthe grisea and loss of variety resistance Disease resistance of cultivars is the pathogenic response of pathogens to the cultivars, and disease resistance is a manifestation of the interaction of cultivars and pathogens