汨罗地区双季晚粳稻不同品种及其播期的适应性研究

Adaptability Test Report of Different Double-cropping Late Japonica Varieties and Their Sowing Dates in Miluo

为了探索籼粳杂交稻在湖南汨罗作双季晚稻的生产适应性,摸索与之相配套的水稻丰产栽培集成技术,加速推动早籼-晚粳双季栽培模式的形成,特引进甬优538等5个粳稻品种开展适应性和播期试验,从中筛选适应当地栽培的高产、高抗、优质型晚粳品种。试验结果表明:甬优538、甬优1540作为晚粳栽培具有较好的增产潜力和生产适应性,可作为当地晚粳品种推广种植。

In order to explore the production adaptability of indica and japonica hybrid rice cultivated as double-cropping late rice variety in Miluo city, Hunan province, and probe for integrated matching techniques of high-yield cultivation for accelerating the formation of early indica rice- late japonica rice double-cropping cultivation pattern, 5 japonica varieties such as Yongyou 538 were introduced specifically for conducting the adaptability and sowing date tests, so as to screen late japonica varieties with high yield, good resistance and high quality suitable for the cultivation in local area. The test results showed that Yongyou 538 and Yongyou 1540 had the potential of increasing the yield and good production adaptability, and could be considered as the candidates of late japonica rice varieties for the promotion in local area.