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Analysis of the Resistance to Rice Blast and False Smut of 18 Varieties of Hybrid Rice in Sichuan Province, China

文献类型： 外文期刊

作者： Li, Yan 1 ; Shi, Jun 1 ; Xiang, Zufen 1 ; Hu, Rongping 2 ; Shi, Shoupei 1 ; Peng, Tao 1 ; Liu, Dingyou 1 ; Huang, Tingyou 1 ;

作者机构： 1.Mianyang Acad Agr Sci, Mianyang 621023, Sichuan, Peoples R China

2.Sichuan Acad Agr Sci, Inst Plant Protect, MOA Lab Integrated Management Pests Crops Southwe, Chengdu 610066, Sichuan, Peoples R China

关键词： Rice blast;Rice false smut;Hybrid rice;Resistance

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2017 年 19 卷 4 期

页码：

收录情况： SCI

摘要： Rice blast and false smut are severe diseases of rice reducing not only rice yield but also affect grain quality. The most effective and economical mean of controlling diseases is to breed disease-resistant rice cultivars. Here, we used 18 hybrid rice varieties for identifying their functional rice blast resistance genes, and for estimating their sensitivities to false smut disease. This experiment was conducted in Sichuan Province, China in 2012-2014. The results showed that the Pi2 and Pik loci have strong rice blast resistance. Rice varieties i.e. CNY445, CNYHZ, and YXY2115 expressed the Pi2, while CFY188 and LY908 expressed Pikm. Varieties R18/2348, CGY2348, GY66, YLY973 and N5Y828 demonstrated strong resistance to rice false smut. No correlation in the resistance between rice blast and false smut was observed among the 18 hybrid rice varieties. These results can provide guidance for rational distribution of hybrid rice varieties. (C) 2017 Friends Science Publishers

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