Evaluation of Bacterial Blight Resistance of Chinese Micro Core Rice Germplasm

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    Bacterial blight disease of rice, caused by Xanthomonas oryzae pv. oryzae (Xoo), is one of the most devastating rice diseases worldwide.In this study, total 174 of rice core germplasm materials from 26 provinces of China were evaluated resistance to BB by inoculation with six representative Xoo strains of China and the Philippines. The results showed there was distinct difference of bacterial blight resistance among cultivars from rice different cultivation regions, and subgroup specificity betweenindica and japonicarice. Six japonica cultivars and seven indica cultivars were resistant to two or more than two Xoo strains, among them, Shangujiu, Maguzi, Baoerfu and Gu154 exhibited broader resistance spectrums. These results will provide useful information for improvement bacterial blight resistance in rice breeding program.

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  • Received:January 04,2017
  • Revised:February 22,2017
  • Adopted:February 22,2017
  • Online: July 14,2017
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