杂交水稻秋制高产技术研究

针对杂交水稻秋季制种结实率低,父本花粉量少、活力弱、母本群体偏小等问题,实行“三项技改”,即改传统的小双行,小行比和拉绳赶粉为大双行、大行比和竹竿赶份,制种产量明显提高。

Studies on High Yield Technique of Hybrid Rice Seed Production in Autumn

Considering the problems of Lous out-crossing rate, absencing pollen of male parent, weak living force of pollen andl little population of female parent in hybrid rice production three-technique-Changing have been carredon, i. e. Changing from traditional small-double-line, small-line-rate and Shaking pollen with nope to bigdouble-line big-cine-rate and Shaking pollen with pole the Yield of seed production is rernarkable raised.