中国水稻科学

中国水稻科学

• 研究简报 • 上一篇    下一篇

籼型杂交水稻抗褐飞虱育种研究

王建军1;俞晓平2;吕仲贤2;陶林勇2;石守鋆1；董文其1   

  1. 1浙江省农业科学院 作物研究所， 浙江 杭州310021； 2 浙江省农业科学院 植物保护研究所， 浙江 杭州 310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-10-10 发布日期:1999-10-10

Breeding of Resistance to Brown Planthopper (Nilaparvata lugens) in Indica Hybrid Rice

Wang Jianjun; Yu Xiaoping; Lu Zhongxian; Tao Linyong; Shi Shouyun; Dong Wenqi   

  • Received:1900-01-01 Revised:1900-01-01 Online:1999-10-10 Published:1999-10-10

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被引次数

36

摘要： 对80份籼型杂交水稻恢复系的抗褐飞虱特性鉴定表明，30份材料对褐飞虱抗性达中抗以上水平，其中12份材料的持抗性优于ASD7。将这12份材料的抗级为0～3级、持抗期≥7 d的优质抗性材料归为一级抗性材料。经杂种优势的测定、外观米质评价、白叶枯病和稻瘟病抗性鉴定，筛选出对两病一虫达中抗水平，与协青早A的杂种产量比对照汕优10号增产12.9%的杂交水稻新恢复系埃红/台1059；以及高抗褐飞虱、高抗稻瘟病、中抗白叶枯病且外观米质极好的恢复系LS2/密阳46。

关键词: 杂交水稻, 褐飞虱, 抗性, 筛选, 育种

Abstract: The characters of resistance to brown planthopper (Nilaparvata lugens) of 80 restorers in indica hybrid ricewere evaluated. It was found that 30 restorers express medium- or higher-grade resistance. Twelve of them show super to ASD7 in durable resistance. These materials, 0-3 degree of resistant grade and durable resistance >7 d, were divided into first degree of resistant materials. After testing heterosis, assessing apparent rice quality, evaluating resistance to rice leaf blight and rice blast, two new restorers were selected. One restorer, Aihong/Tai 1059, expressed medium grade of resistanceto rice leaf blight and rice blast and brown planthopper. The yield of its hybrid with Xieqingzao A increased 12. 9% than thatof CK Shanyou 10. Another, LS-2/Milyang 46, possessed such characteristics as high resistance to brown planthopper and rice blight, medium resistance to rice leaf blight, and excellent apparent rice quality.

Key words: hybrid rice, brown planthopper, resistance, screening