论文部分内容阅读
本文介绍的十三个抗病品种中,在一九八二年闽西北稻区考察时,大部分品种都有发现不同程度轻微感染稻瘟病,只有姬糯、秋光与胜红16等三个品种表现高抗。现简介如下:71—20:是明溪县良种场一九七一年用沙矮早5号与珍汕97杂交育成的早熟种。一九七七年定型,经多年示范试种和大面积推广表现早熟、高产、抗病力强。一九八一年参加全省区试早熟组预试,名列第一,比圭辐3号增产26.3％。同年在该县城关公社坪埠大队试种66亩,亩产850斤。在这两年稻瘟病发病严重情况
Among the thirteen disease-resistant cultivars introduced in this article, most of the cultivars in the northwestern Fujian region investigated in 1982 were found to be slightly affected by blast disease in varying degrees, with only three varieties of Jiwuuang, Qiuguang and Shenghong16 High performance. Now brief introduction is as follows: 71-20: Yes Mingxi County thoroughbred field in 1991 with Shacha early 5 and Zhenshan 97 hybrid breeding of precocious species. In 1977 stereotypes, after years of demonstration and large-scale pilot projects to promote the performance of early maturity, high yield, strong disease resistance. In 1981, he took part in the pre-examination of precautionary area test in the whole province, ranking No. 1, with a 26.3% increase over the No. 3 Guiyu radiation. The same year in the county Chengguan commune Pingbu brigade tried planting 66 acres, 850 kg per mu. In the two years the incidence of rice blast serious