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

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

来源：International Journal of Agriculture and Biology, 2017, 19(4): 880-886.

DOI：10.17957/IJAB/15.0384

• Rice blast
• Rice false smut
• Hybrid rice
• Resistance

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.

• 出版日期2017
• 单位绵阳师范学院; 四川省农业科学院