不同植物生长调节剂对再生稻产量及其构成因子的影响
Effects of Different Plant Growth Regulators on Yield and Its Components of Ratooning Rice
曹国军 1陈国徽 1周微 1傅小平 1吕太华 1刘中来 1谢国强1
作者信息
- 1. 九江农业科学院,江西九江 332200
- 折叠
摘要
[目的]研究不同植物生长调节剂对再生稻产量及其构成因子的影响.[方法]以丰两优香1号和中浦优华占为试验材料,以不同促芽剂和920在机械收割2 d后下午对水225 kg/hm2进行喷施,对再生稻产量及构成因子进行研究.[结果]喷施促芽剂和920处理能打破再生芽的休眠,提高再生稻的发苗数和成穗率,增加单位面积有效穗数、结实率、每穗实粒数和株高,从而提高再生稻产量,增产幅度为7.9%~12.7%,增产效益显著.再生稻产量与实粒数、结实率和千粒重呈极显著的正相关,与品种再生力呈显著正相关.[结论]该研究为头季机械收割后再生季稳产高产提供了技术支持.
Abstract
[Objective] To study the effects of different plant growth regulators on yield and its components of ratooning rice.[Method] With Fengliangyouxiang 1 and Zhongpuyouhuazhan as the experimental materials, different promoter and 920 were sprayed with 225 kg/hm2 water in the afternoon after mechanical harvesting 2 days to study yield and its components.[Result]Spraying promoter and 920 treatment can break the dormancy of regenerated bud regeneration, improve rice seedling number and spike rate, increase the effective panicles per unit area, seed setting rate, grain number per panicle and plant height, so as to improve the yield of ratooning rice, increase by 7.9%-12.7%, increase production efficiency significantly.The ratooning rice yield showed extremely significant positive correlation with grain number, seed setting rate and 1 000-grain weight ,showed significant positive correlation with species regeneration ability.[Conclusion] The research provided technical support for stable and high yield in the first season after mechanical harvesting.
关键词
生长调节剂/再生稻/产量/构成因子Key words
Growth regulator/Ratooning rice/Yield/Component引用本文复制引用
基金项目
江西省水稻产业技术体系项目(JXARS-02)
九江市科技支撑项目;江西省科技支撑计划项目(20161BBF60016)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据