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Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance

Author

Listed:
  • Martina Trávníčková

    (Crop Research Institute, Prague-Ruzyně, Czech Republic
    Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • Kateřina Pánková

    (Crop Research Institute, Prague-Ruzyně, Czech Republic)

  • Zdenka Martinková

    (Crop Research Institute, Prague-Ruzyně, Czech Republic)

  • Alois Honěk

    (Crop Research Institute, Prague-Ruzyně, Czech Republic)

Abstract

Maximum aphid numbers on wheat are positively related to the length of the period elapsed from immigration to the population peak. We predicted that maximum abundances on late maturing cultivars would be greater than on early ones. This was tested using 8 spring wheat cultivars that differed in the length of time to senescence. In a 4-year experiment, numbers of aphids were checked at weekly intervals. Maximum abundances on late-maturing cultivars were significantly greater than those on early cultivars. However, the length of the vegetation period affected maximum abundances less than did the annual variation in aphid abundance. Genetic disposition for early ripening thus tends to decrease aphid numbers, but manipulation of this character is unlikely to become an important source of aphid resistance.

Suggested Citation

  • Martina Trávníčková & Kateřina Pánková & Zdenka Martinková & Alois Honěk, 2016. "Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 52(4), pages 254-261.
    • Handle: RePEc:caa:jnlpps:v:52:y:2016:i:4:id:3-2016-pps
    DOI: 10.17221/3/2016-PPS
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