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一、引言扩凡水稻不育系及杂交制种,尤其是小面积不育系凡殖及杂交制种田突出的难题是隔离区难安排。在连片的大面积水稻地区隔离条件往往不够;旱田地区隔离条件虽好,但水源的问题又不易解决。为了解决这个难题,我们曾用白布、塑料薄膜等隔离物人为地设置障碍进行多种形式的
I. INTRODUCTION Expanding male sterile lines and cross hybrid rice seed production, especially small-scale CMS lines where breeding and hybrid farming prominent problem is the isolation area difficult to arrange. In contiguous large areas of rice isolation conditions are often not enough; dryland isolation conditions are good, but the water problem is not easy to solve. In order to solve this problem, we used artisanal barriers to provide various forms of insulation such as white cloth, plastic film, etc.