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Field Study of the Effects of Two Different Environmental Conditions on Wheat Productivity and Chlorophyll Fluorescence Induction (OJIP) Parameters

Author

Listed:
  • Valentina Spanic

    (Agricultural Institute Osijek, Juzno Predgradje 17, 31000 Osijek, Croatia)

  • Selma Mlinaric

    (Department of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8a, 31000 Osijek, Croatia)

  • Zvonimir Zdunic

    (Agricultural Institute Osijek, Juzno Predgradje 17, 31000 Osijek, Croatia)

  • Zorana Katanic

    (Department of Biology, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8a, 31000 Osijek, Croatia)

Abstract

Wheat is one of the main cereal crops for ensuring food supply. Thus, increasing grain yield is a major target for plant breeders, where insights into wheat productivity can be gained by studying the activity of the components of photosynthetic apparatus. The objectives of this study were to evaluate the agronomical performance of three winter wheat varieties and test photosynthetic efficiency over two different locations. Chlorophyll fluorescence was used to evaluate the maximum quantum yield of photosystem II (PSII) (TR 0 /ABS) and performance index on absorption basis (PI abs ) of flag leaves and glumes of heads at the flowering stage until the mid-senescence stage. The grain yield of all varieties on average was significantly higher at Osijek compared to Tovarnik. Variety Tika Taka exhibited the highest yield reduction (27.1%) at Tovarnik compared to Osijek, followed by El Nino (20.5%) and Vulkan (18.7%), respectively. A higher amount of precipitation in June at Tovarnik provoked higher Fusarium head blight disease intensity, which could be seen as the bleaching of plant heads at the plots and resulted in an earlier decrease in photosynthetic activity. Therefore, earlier senescence and contracted grain fill duration could occur.

Suggested Citation

  • Valentina Spanic & Selma Mlinaric & Zvonimir Zdunic & Zorana Katanic, 2021. "Field Study of the Effects of Two Different Environmental Conditions on Wheat Productivity and Chlorophyll Fluorescence Induction (OJIP) Parameters," Agriculture, MDPI, vol. 11(11), pages 1-15, November.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:11:p:1154-:d:681421
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    References listed on IDEAS

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    1. Carew, Richard & Smith, Elwin G. & Grant, Cynthia, 2009. "Factors Influencing Wheat Yield and Variability: Evidence from Manitoba, Canada," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 41(3), pages 1-15, December.
    2. Carew, Richard & Smith, Elwin G. & Grant, Cynthia, 2009. "Factors Influencing Wheat Yield and Variability: Evidence from Manitoba, Canada," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 41(3), pages 625-639, December.
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