中国水稻科学2017，Vol.31Issue(6)：658-664,7.DOI:10.16819/j.1001-7216.2017.7032
减数分裂期高温对水稻穗粒数影响的定量分析
An Quantitative Analysis of High Temperature Effects During Meiosis Stage on Rice Grain Number per Panicle
摘要
Abstract
[Objective]Grain number per panicle is one of yield component factors for rice. In order to analyze the effect of high temperature on the grain number per panicle and develop the quantitative model to evaluate it, [Method]a pot experiment under different high temperatures and durations during meiosis stage was conducted with Liangyoupeijiu and Nanjing 45 as materials in 2014-2015. [Result]Grain number per panicle decreased with the rising temperature and prolonging duration exposed to high temperature. The relationship between grain number per panicle and temperature could be expressed with a quadratic equation. The terminal time of grain number per panicle sensitive to high temperature was five days before heading date. The validation result showed the model could better simulate the effect of high temperature during meiosis stage on the grain number per panicle with rRMSE 0.094 and 0.085 for Liangyoupeijiu and Nanjing 45, respectively. [Conclusion]This study would help improve the quantitative effect of high temperature on rice growth duration.关键词
水稻/减数分裂期/高温/穗粒数/定量模型Key words
rice/meiosis stage/high temperature/grain number per panicle/quantitative model分类
农业科技引用本文复制引用
石春林,骆宗强,江敏,侍永乐,李映雪,宣守丽,刘杨,杨沈斌,于庚康..减数分裂期高温对水稻穗粒数影响的定量分析[J].中国水稻科学,2017,31(6):658-664,7.基金项目
公益性行业(气象)科研专项(GYHY201306035) （气象）
国家自然科学基金资助项目(31671574,31401279) （31671574,31401279）
江苏省农业科技自主创新资金资助项目[CX(14)2113] （14）
福建农林大学科技创新专项基金资助项目(CXZX2016165). （CXZX2016165）
