MENG Ying,JIAO Jiang,XU Xian-bin,et al.Forecast Model of Safety Heading Stage for Japonica Rice[J].HEILONGJIANG AGRICULTURAL SCIENCES,2008,(01):43-44.[doi:10.11942/j.issn1002-2767.2008.01.0043]
水稻安全抽穗期预测模型
- Title:
- Forecast Model of Safety Heading Stage for Japonica Rice
- 文章编号:
- 1002-2767(2008)01-0043-02
- Keywords:
- japonica rice ; heading stag e ; fo recast
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 预测水稻抽穗期对水稻安全生产和杂交育种工作起着非常重要的作用。应用AT-Tbase 法(AT-accumulatedeffective tempe rature ;Tba se-base tempera ture)预测水稻品种上育397 的抽穗期。利用Tbase 和有效积温,结合常年气象数据, 可预测上育397 在不同地区的安全抽穗期。当Tbase =9 时, 有效积温是597 .2474℃, 验证值与实际抽穗期的差异范围为-3 ~ +3 d , 预测值精确度最高。
- Abstract:
- I t w as impo rtant of forecasting rice heading stag e to rice safe ty production and cro ss breeding .The studyof applying AT-Tbase me tho d to fo reca st heading stag e o f Shang yu 397 wa s conducted.The safe heading stages indifferent districts co uld be fo recasted according to Tbase , accumulated effective tempera ture and meteo rolog icalfactor s.The r esults indicated tha t w hen Tbase equaled to 9 , the accumulated effec tive tempe rature w as597.2474 ℃.Compared w ith the actual va lue , the differe nce ranged f rom-3 day s to 3 day s, the accurate rate achieved rema rkable level .
参考文献/References:
[ 1] Ryoji sam es hima .A new method f or predictin g f low ering st age in soybean[ J] .JARQ , 1991 , 22(3)149-153 .
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备注/Memo
基金项目:中日国际合作项目“ 建立稳定的粮食供应体系缓解粮食生产与市场供应波动”