稻瘿蚊多抗性材料的聚合与创新(英文)

文献类型： 中文期刊

第一作者： 冯锐

作者： 秦学毅;唐建淮;朱汝财;潘英华;刘百龙;韦素美;黄凤宽

作者机构：

期刊名称： Agricultural Science & Technology

ISSN： 1009-4229

年卷期： 2009 年 01 期

页码： 13-16

摘要： [Objective] This study was to breed rice cultivars with multi-resistance to Orseolia oryzae (Wood-Mason). [Method] The Guangxi local cultivar GX-M001(Jiangchao) with high resistance to Orseolia oryzae (Wood-Mason) was used to hybrid with the known resistance cultivars "Kangwenqingzhan" (harboring GM6 gene), OB677(harboring GM3 gene) from Sri Lanka, HT1350 and high yield and quality cultivar "Guiruanzhan". [Result] Through pyramiding the multi-resistant genes via routine hybridization, the general resistances of the hybrids were remarkably enhanced. The grades of resistance were also improved, many of the combinations were endowed with a resistance at immune level(grade 0); and interestingly, the respective hybridization of GX-M001(high resistance) with OB677(medium resistance) and HT1350(susceptible) also generate two lines at immune level, which is probably the effects of additive effects of genes. [Conclusion] By routine hybridization, multiple genes were successfully pyramided, thus generating novel rice lines with multiple resistances. For the rice breeding scientists at the grass-roots level, the resistance-resistance pyramiding is an effective approach to breed high resistance cultivars.

分类号： S435.112

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