超级稻特优582在广西不同生态区的生产适应性

Preliminary study on productive adaptability of super rice Teyou 582 in different ecological sites of Guangxi

[目的]对特优582在广西不同生态区的生产适应性进行分析,探讨其作为“双超”模式品种在广西的适应性,为其推广应用提供参考依据.[方法]2010～2011年在广西6个不同生态点观察分析特优582作早、晚稻种植的生育期、产量及其构成因素表现.[结果]特优582在广西可作早、晚稻种植,生育期适中,在115～138 d之间,适应性较广;由南至北,其生育期相对延长,在桂北因早稻生育期较长及晚稻生育期温度较低而影响其作晚稻种植;早稻产量高于晚稻,最高产量可达10.57t/ha,主要是其结实率高、单位面积颖花量大.[结论]特优582在桂北稻作区宜作早稻或一季稻种植,桂南稻作区可作早、晚稻种植.

[Objective]Productive adaptability of super rice Teyou 582 in different ecological sites of Guangxi was studied to survey its adaptability and application status as a variety of double super model in Guangxi in order to provide references for application and extension of Teyou 582. [Method]Field trials were conducted in 6 different coo--sites in Guangxi between 2010 and 2011. Teyou 582 was cultivated both as early and late rice, and its growth period, yield and components were compared. [Result]The results showed that Teyou 582, with the character of medium growth period between 115 and 138 d from south to north of Guangxi, could be widely sown as early and late rice variety except the north of Guangxi because of long duration of early rice and low temperature in late year. The yield of Teyou 582 sown in early season was higher than late season, because it could attain higher filled-grain percentage and more panicles per unit area. The highest yield was 10.57 t/ha. [Conclusion] Teyou 582 can be sown as early or one season rice in north of Guangxi, and sown as both early and late season rice in south of Guangxi.