Resistance Evaluation of Rice Improved Lines to Brown Planthopper and White-backed Planthopper

doi:10.11924/j.issn.1000-6850.casb15100046

Abstract

Abstract: For evaluating the resistance of rice improved lines to brown planthopper (BPH) and white-backed planthopper (WBPH), the resistance of the improved lines at adult stage to BPH and WBPH and the resistance at seedling stage to BPH were identified and evaluated by artificial induction and the standard seedbox screening technique. The results showed that the improved lines G6 and G8 of RHT-sd1, G9 and G10 of ‘Ptb33’, G15 of Qb14, G16 and G17 of Qb15 were resistant to BPH and WBPH, which accounted for 25.0%, 66.7% , 25.0% and 100.0% of the total improved lines of the corresponding resistant resources. It was concluded that the new multi-resistance lines could be obtained from improving the resistant resources which had resistance to both BPH and WBPH. Seven improved lines obtained in this study, which were resistant to BPH and WBPH, could have useful values in breeding multi-resistant rice varieties.

CLC Number:

S512.1

朱旭东. Resistance Evaluation of Rice Improved Lines to Brown Planthopper and White-backed Planthopper[J]. Chinese Agricultural Science Bulletin, 2016, 32(3): 16-21.

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