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杂交水稻的研究成功,实现了水稻有性杂交产生的杂种优势运用于生产。但制种产量低,制一次种只能用一年,这是需要研究解决的问题。从1975年起,我们选用长药野生稻作为主要亲本进行宿根稻的选育,以期利用无性繁殖的方法固定其杂种优势,使选获的优异杂交一代植株宿根繁殖利用多年。本文就这一研究中对长药野生稻性状及杂交后代表现的研究简报如下。一、长药野生稻的独特性状长药野生稻(Oryza Longistaminata,以下简称长野),原产西非尼日尔河流域。本文作者之一刘表喜,于1973—1977年在贝宁对长野作了长时间的生态观察和杂交研
The successful research of hybrid rice has realized the hybrid advantage produced by sexual hybridization in rice. However, seed production is low, the system can only use one year, which is the need to study and solve the problem. Since 1975, we selected longan rice as the main parent to carry on the breeding of the rhizosphere rice, in order to utilize the asexual reproduction method to fix its heterosis and make the selected superior hybrid generation plant perennial breeding for many years. This article on this study on the properties of long crude rice and hybrid offspring of research reports are as follows. First, the unique characteristics of longan wild rice Longyao wild rice (Oryza Longistaminata, hereinafter referred to as Nagano), the native West African Niger River. Liu Bixi, one of the authors of this article, made a long-term ecological observation and hybridization study of Nagano in Benin in 1973-1977