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辽宁省三系杂交水稻研究,通过采取“籼粳架桥”人工制恢技术,于1975年在我国率先实现了粳杂配套,对全国粳杂研究起到了巨大的推动作用。试验表明,杂交稻产量明显高于常规种。八十年代初迅速在生产上大面积推广应用,使我省成为全国粳稻区应用杂交稻时间最早种植面积最大的省份。据统计,截止1991年,全省杂交稻累计推广面积1309万亩,亩增稻谷75公斤,累计增产稻谷9.8亿公斤,为社会创造了巨大的物质财富。但是,自从八十年代末期以来,杂交稻面积却处于徘徊下降的局面。特别是90年,杂交稻种植面积仅85万亩,比上年减少一半。近几年,杂交稻面积持续下滑。为了扭转目前我省杂交稻的这种被动局面,充分挖掘杂交稻的增产潜力,
The study of three-line hybrid rice in Liaoning Province took the lead in implementing the Japonica hybrid package in China in 1975 through the adoption of the “Indica-Japonica Bridge” artificial recovery technique and played a huge role in promoting the nationwide Japonica hybrid research. Tests showed that the yield of hybrid rice was significantly higher than the conventional species. In the early 1980s, the rapid popularization and application of large-scale production has made our province the largest province with the earliest planting area of hybrid rice in the national japonica rice area. According to statistics, as of 1991, the total area for hybrid rice in the province was 13.09 million mu, with an increase of 75 kg of paddy and cumulative increase of 980 million kg of paddy, which created huge material wealth for the society. However, the area of hybrid rice has been hovering down since the late 1980s. In 90 years in particular, the area under hybrid rice cultivation is only 85 million mu, down by half from the previous year. In recent years, hybrid rice area continued to decline. In order to reverse this passive situation of hybrid rice in our province and fully tap the yield potential of hybrid rice,