Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (10): 171-175.doi: 10.11924/j.issn.1000-6850.casb14100116

Special Issue: 水稻 农业生态

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Resistance Mechanism of Different Rice Varieties to Brown Planthopper

Xu Xueliang1, Xiao Yeqing2, Chen Dazhou2, Hu Lanxiang2, Yao Yingjuan1   

  1. (1Applied Agricultural Micro-organism Research, Jiangxi Academy of Agricultural Sciences, Nanchang 330200;2Institute of Rice Research, Jiangxi Academy of Agricultural Sciences, Nanchang 330200)
  • Received:2014-10-28 Revised:2015-03-05 Accepted:2014-12-24 Online:2015-05-05 Published:2015-05-05

Abstract: The aims were to select resistant rice varieties to the brown planthopper (BPH), Nilaparvata lugens (St?l) and study the resistance mechanism of the resistant rice varieties to BPH. Resistance of 2 rice varieties to BPH, was evaluated using the standard seedbox screening technique at seedling stage and adult stage. The antixenosis, antibiosis and tolerance of the 2 rice varieties to the brown planthopper were tested. The results indicate that, at seedling stage, 1105113 was at resistance level to BPH, but 1105096 was at high resistance level to BPH. At adult stage, 1105096 and 1105113 both were at immunity level. The antixenosis of BPH nymphae and adult to 1105096 and 1105113 was strong. Compared with the control, the survival rate of BPH nymphae on 1105096 and 1105113 were significant lower. The tolerance of BPH nymphae on 1105096 and 1105113 was weaker, but the antibiosis was stronger. It could be summarized that the 2 rice varieties both have an excellent resistance to BPH at seedling stage and adult stage. Furthermore, the 2 rice varieties also had tolerance, antibiosis and antixenosis to BPH, and the antibiosis was stronger than the tolerance. Both of the 2 rice varieties could be used to cultivate rice varieties’ resistance to BPH.