| 水稻秧池一代二化螟卵量与秧苗叶龄关系及其应用 |
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| 引用本文： | 王泉章,梅爱中,丁志宽,李瑛,邰德良.水稻秧池一代二化螟卵量与秧苗叶龄关系及其应用[J].中国植保导刊,2003,23(6):6-9. |
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| 作者姓名： | 王泉章 梅爱中 丁志宽 李瑛 邰德良 |
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| 作者单位： | 江苏省东台市植保植检站,江苏,东台,224200 |
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| 摘 要： | 以水稻秧池秧苗叶龄与当时田间一代二化螟累计卵量占全代卵量的百分率为相关因子,建立直线回归预测式,其相关达极显著水平。由此预测一代二化螟发生趋势,方法简便,准确性高,并揭示出秧池一代二化螟累计卵量与秧苗叶龄关系的规律,从而提出了防治工作“两查两定”的新方法。
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| 关 键 词： | 水稻秧池 一代二化螟 秧苗叶龄 卵量百分率 |
| 文章编号： | 1004-7255(2003)06-0006-04 |
| 修稿时间： | 2003年3月12日 |
The correlation between egg populations of the first generation of rice stem borer and leaf age of rice seedlings in rice nursery beds and its applications |
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| WANG Quan zhang,MEI Ai zhong,Ding Zhi kuan,LI Ying,TAI De liang.The correlation between egg populations of the first generation of rice stem borer and leaf age of rice seedlings in rice nursery beds and its applications[J].China Plant Protection,2003,23(6):6-9. |
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| Authors: | WANG Quan zhang MEI Ai zhong Ding Zhi kuan LI Ying TAI De liang |
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| Abstract: | The new forecasting model was set up by liner regression analysis,where leaf age of rice seedlings in rice nursery beds was used as dependent variable and percentages of accumulative egg populations of the first generation of rice stem borer versus total accumulative egg populations of the whole first generation as dummy variable. Correlation analysis indicated distinctive significance of correlation between these two variables. It is proved that the new forecasting model is a simple, convenient and precise forecasting tool, which is easy to reveal the relationships between the egg populations of the first generation of rice stem borer and leaf age of rice seedlings. A new control method-"twice field surveys with twice decision"has been proposed based on this study. |
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| Keywords: | rice nursery bed the first generation of rice stem borer leaf age of rice seedling percentage of egg population |
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