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我省历来将抗稻瘟病品种的选育和利用作为水稻育种的主要目标。自50年代末至今,通过引种鉴定和杂交育种等手段,先后选育推广了近百个抗病良种,对防病增产起了重要作用。然而,现有推广品种抗病性不够理想,新的抗病品种推广不久,抗性则逐年降低或突然丧失,生产上迫切要求培育出抗性更强而稳定的具有广谱抗性和多抗性的新品种。针对我省水稻生产实际,在抗稻瘟病品种选育和利用方面,提出几点浅见。一、因地制宜地选用抗病品种水稻不同品种间抗病性差异显著,同一个品种在不同地区抗病性表现并不一致。因地制宜地选用抗病
The province has always been the breeding of blast resistant varieties and utilization as the main goal of rice breeding. Since the late 1950s, breeding and popularization of nearly one hundred resistant varieties has been carried out through introduction and identification and crossbreeding, which plays an important role in disease prevention and increase of production. However, the disease resistance of the existing varieties is not ideal enough, and the resistance varieties are reduced or abruptly lost shortly after the promotion of the new resistant varieties. There is an urgent need to cultivate a broad-spectrum resistance and polyclonal antibody that is more resistant and stable in production Sexual new breed. In response to the actual production of rice in our province, blast resistant varieties breeding and utilization, put forward some humble opinion. First, according to local conditions, the selection of disease-resistant varieties of different varieties of rice disease resistance significantly different, the same species in different regions of disease resistance performance is inconsistent. According to the local selection of disease resistance