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Crotalaria ochroleuca Susceptibility to Heterodera glycines Races

Author

Listed:
  • Michelly Ragazzi Cardoso
  • Claudia Regina Dias-Arieira
  • Neucimara Rodrigues Ribeiro
  • Adriély Alves de Almeida
  • Angélica Miamoto
  • Ana Paula Mendes Lopes

Abstract

The aim of the study is to assess Crotalaria ochroleuca susceptibility to six Heterodera glycines races. To this, C. ochroleuca seedlings and two soybean cultivars were transplanted and individually inoculated with nematode races 1, 2, 3, 5, 6 and 14. Plants were collected and assessed 30 and 60 days after inoculation. Crotalaria ochroleuca reduced the number of females and the total number of eggs of the races 1, 2, 5 and 6. The reproduction of race 3 in crotalaria was equal to that of soybean cultivars in both assessment periods, whereas race 14 only reduced the reproduction in crotalaria to 60 days. Races 1 and 6 (30th day) and races 6 and 14 (60th day) showed number of eggs female-1 smaller than the controls. According to female index (FI), C. ochroleuca was resistant to races 1, 2 and 5, susceptible to race 3, and showed varying reactions to races 6 and 14.

Suggested Citation

  • Michelly Ragazzi Cardoso & Claudia Regina Dias-Arieira & Neucimara Rodrigues Ribeiro & Adriély Alves de Almeida & Angélica Miamoto & Ana Paula Mendes Lopes, 2024. "Crotalaria ochroleuca Susceptibility to Heterodera glycines Races," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 11(7), pages 205-205, April.
    • Handle: RePEc:ibn:jasjnl:v:11:y:2024:i:7:p:205
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    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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