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近几年来,在晚粳稻育种工作中对丰产性状的选育,提法不一,有的主张搞矮秆多穗型,有的则偏重于搞大穗型.据报导,目前国内外还有人认为选育大粒品种可能是育成突破性新品种的途径之一.我国云南省在选育大穗大粒品种方面,已取得一定成果.日本育成的超大粒型品种BG_1,千粒重52克,据称该品种是目前国际上千粒重最高的品种.自1979年开始,我们也着手进行了粒重型晚粳稻的选育,经过两年多的工作,配制了近千个组合,初步获得了一批粒型较大的
In recent years, breeding of late japonica rice in the breeding of high yield traits, different opinions, and some advocates engage in dwarf and more panicle type, while others prefer to engage in big spike type.It is reported that there are still at home and abroad It is concluded that selecting large-grain varieties may be one of the ways to cultivate breakthrough new varieties.Yunnan has obtained some achievements in the breeding of large-spike large-grain varieties.Japanese cultivated super-large grain type BG_1, with a grain weight of 52 grams, Since 1979, we have also conducted the breeding of grain-weight late japonica rice. After more than two years’ work, nearly a thousand combinations have been prepared, and a batch of grain-type comparison has been obtained big