从70年代推广杂交水稻以来,汕优6号一直是浙北地区杂交连作晚稻的当家品种,因长期没有较理想的新组合替换,产量水平徘徊不前。为了寻找适应本地区的高产新组合和高产低耗栽培技术的研究提供依据,我们对省内外引进的12个表现较好的新组合进行了对比试验,现将试验结果初报如下。 Since the popularization of hybrid rice in the 1970s, Shanyou 6 has been the hybrid cultivar of late rice in the north of Zhejiang Province. Due to the long absence of the ideal new combination replacement, the yield level has stagnated. In order to find a basis for the research of high-yielding new combinations and high-yield and low-yielding cultivation techniques adaptable to the region, we conducted comparative experiments on 12 new combinations that have been introduced well both inside and outside of our province. The preliminary results are as follows.