中国水稻科学

中国水稻科学

• 研究报告 • 上一篇    下一篇

若干粳稻品种（系）抗褐稻虱特征评价

高春先；贝亚维；顾秀慧   

  1. 浙江省农业科学院，杭州310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1992-09-05 发布日期:1992-09-05

Some Resistance Indices of Selected Resistant Japonica Varieties to Rice Brown Planthopper

Gao Chunxian; Bai Yawei; Gu Xiuhui   

  • Received:1900-01-01 Revised:1900-01-01 Online:1992-09-05 Published:1992-09-05

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摘要： 就一些粳稻抗性品种对褐稻虱(BPH)Nilaparvata lueens抗性进行了评价，水稻品种秀水48作感性品种对照。结果表明：1)褐稻虱在感性品种上分泌的蜜露面积显著地大于抗性品种；饲养在不同品种上褐稻虱一生产卵量(粒／♀)： 秀水48为316．2，秀水620为191，嘉23为165.2，IR64为87.5；不同品种上褐稻虱若虫的存活率：秀水48为100%，秀水620为44%，嘉23为28.22%；相对取食量与抗性等级、田间累计虫量、若虫存活率及产卵量呈正相关。2)不同抗性品种上褐稻虱的种群增长率，秀水48为0.1221，秀水620为0.088，嘉23-2为0.083．3) 供试品种上逻辑斯蒂模型的K值,秀水48为81.58．秀水620为30.54。4)本试验各品种对褐稻虱的内禀控制率(%)秀水48为0，秀水620为78.79，嘉23为8494，IR64为0.8632。5)各品种对褐稻虱田间控制率（%）秀水48为0，秀水620为77.23，嘉23-2为76.68。

关键词: 褐稻虱, 抗性, 粳稻, 品种

Abstract: The resistance indices of japonica varieties resistant to the brown planthopper (BPH), Nilaparvata lugens, are described. The rice variety Xiushui 48 was used as susceptible control. The results indicate: 1) The area of honeydew excreted by BPH was apparently greater on susceptible than that on resistant varieties. The number of eggs oviposited in the life-span of BPH on different rice varieties were: 316.2/female on Xiushui 48; 191.0/female on Xiushui 620; 165.2/female on Jia 23 and 87.5/female on IR64. The survival rates of BPH on different rice varieties were: Xiushui 48, 100%; Xiushui 620, 44% and Jia 23, 28.22%. There exist positive relationship between relative intake amount of BPH (Area of honeydew excreted by BPH) and resistance grade of rice variety, cumulative insect-days per hill, survival rate, oviposition amount of BPH. 2) The rates of population increase of BPH on different resistant varieties were 0.1221 on Xiushui 48; 0.0880 on Xiushui 620 and 0.0830 on Jia 23-2. 3) The K values of logistic models on the tested varieties were: Xiushui 48, 81.58 and Xiushui 620, 30.54. 4) The intrinsic control rate in this experiment was Xiushui 48, 81.58% and Xiushui 620, 30.54%. 4) The intrinsic IR64, 86.32%, 5) The field control rates of several varieties to BPH were: Xiushui 48, 0%; Xiushui 620, 77.23% and Jia 23-2, 76.68%.

Key words: Intrinsic control rate, Japonica variety, Logistic model, Nilaparvate lugens, Resistance