Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (4): 288-292.doi: 10.11924/j.issn.1000-6850.2013-2137

Special Issue: 资源与环境 水稻

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Studies on Core Collection of Rice Germplasms for Resistance to White-backed Planthopper

  

  • Received:2013-08-07 Revised:2013-09-25 Online:2014-02-05 Published:2014-02-05

Abstract: For developing a core collection of rice germplasms for resistance to white-backed planthopper (WBPH), a total of 101 rice accessions which resistant to WBPH were used for evaluating 10 main agronomic traits by field observation, resistance grouping, and ward clustering analysis. The results indicated that core collection was composed of 12 accessions, which max, min, range, mean, standard deviation, variable coefficient and index of diversity of 10 characters analyzed were very close to those of the whole collection. Core collection covered genetic diversity of the whole collection.