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稻瘟病是我省水稻的主要病害,实践证明,选用抗病品种是防治稻瘟病最理想的措施之一。为配合高产、多抗、优质水稻新品种的选育,为鉴选抗病品种,以及为品种的评价和合理布局提供依据,1983和1984年对我所近年育成的新品种(系)进行了稻瘟病的抗性鉴定试验。本试验通过稻瘟病圃,抗谱分析和产量损失率测定等方法确定了这些品种的抗性强弱。现将试验结果报道如下: 一、材料和方法 (一)供试材料 育403、育404、育406、育413、育415、育416、育417、辐53、桂朝2号(CK)计9个。
Rice blast is the main disease of rice in our province. Practice has proved that the selection of resistant varieties is one of the most ideal measures to control rice blast. To cope with the breeding of new varieties with high yield, high resistance and good quality, we provided evidences for the selection of resistant varieties and for the evaluation and reasonable layout of varieties. In 1983 and 1984, the new varieties (lines) Resistance Evaluation of Rice Blast. In this experiment, the resistance of these cultivars was determined by the method of rice blast disease, anti-spectrum analysis and yield loss rate determination. The test results are reported as follows: I. Materials and Methods (a) Materials 403, 404, 406, 413, 415, 416, 417, 53, and 2 9.