摘要
本文研究了15个水稻品种的抗性遗传。品种国眉占的抗性受一对隐性基因控制;BG367—4受两对隐性基因控制;三桂占1、Suweon 294、KAU 1727、IR 13559—100—2—2—2—3、IR 7149—5—2—1—1以及IR 13240—108—2—2—3均受一对显性基因控制;IR 25586—108—1—2—2—2受两对显性基因控制;三黄占2、三叶占1、铁六选;新惠占1、GENG 77—4以及IR 13427—40—2—3—3都受一对显性基因和一对隐性基因控制。同时对12个具有不同抗性水平的水稻品种苗期的抗性表现进行了遗传型稳定性分析。结果表明,不同品种的抗性稳定性有明显差异:TN1是极稳定的高感品种;BG367—4、IR 25586—108—1—2—2—2以及Mudgo是非常稳定的高抗品种;三叶占1、三桂占1和铁六选这三个抗级品种的抗虫性也较稳定,而抗级品种国眉占、三黄占2、Suweon 294和中抗品种包选2、辐包矮21的抗虫性不稳定。
The genetics of resistance to the brown planthopper (BPH), Nilaparvotc lugens(Stal) was studied in 15 rice varieties. The resistance of ' Guomeizhan' was controlled by one recessive gene'. BG 367 - 4'possesed two recessive genes for the resistance . A single dominant genes conditioned the resistance in 'Sanguizhan 1' ,'Suweon 294' ,'KAU 1727','IR 13539-100-2-2-2-3','IR 7149-5-2-1-1'and'IR 13240-108-2-2-3'.Two dominant genes conveyed the resistance in 'IR25586-108-1-2-2-2'.The resistance in 'Sanhuangzhan 2' ,'Sanyezhan 1' ,'Tieliuxuan 2','Xinhuizhan 1','GENG 77-4' and 'IR 13427-40-2-3-3'was governed by one dominant and one recessive gene.Stability of resistance of 12 rice varieties with different resistant levels in seedling stage was studied. The parameters of genetypic stability of resistance were estimated by the method proposed by Tai (1971) . The results indicated that the varieties showed different levels of resistant stability. The variety of 'TN 1' was a susceptible variety with very high stability.'IR 25586-108-1-2-2-2' ,'BG 367-4' and'Mudgo' were resistant varieties with high stability. The resistance of ' Sanyezhan 1' ,' Sanguizhan 1' and ' Tieliuxuan' exhibited moderate stability, while resistance in the resistant varieties ' Guomeizhan' ,' Sanhuangzhan 2' ,' Suweon 294' and the moderately resistant varieties ' Fubaoai 21' and ' Baoxuan 2' was unstable.
出处
《华南农业大学学报》
CAS
CSCD
1992年第1期20-25,共6页
Journal of South China Agricultural University
基金
国家自然科学基金
关键词
水稻
褐稻虱
抗性遗传
抗性稳定性
Rice
Nilaparvota lugens (Stal)
Genetics of resistance
Stability of resistance
