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Biodiversity as a creator of productivity and interspecific competitiveness of winter cereal species in mixed cropping

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  • Klimek-Kopyra, Agnieszka
  • Bacior, Magdalena
  • Zając, Tadeusz

Abstract

The study evaluated the productivity of three species of winter cereals – wheat, rye, and triticale – in sole cropping and in mixtures of two and three species. Asymmetrical interspecific competition was noted during generative growth stages. The greatest competitive strength was observed for triticale in the mixture with wheat during the heading stage. In the two-species mixtures with equal proportions (50:50), triticale produced greater biomass. In the three-species mixture, the productivity of rye and triticale depended mainly on their initial high share in the crop (50%). Wheat, despite having a high share in the mixture, did not display high productivity, because the yield per spike and harvest index decreased. Rye in the mixed cropping with wheat produced significantly higher spike weight and culm weight in comparison with sole cropping. Triticale, despite being strongly competitive in the canopy during the generative growth phase, attained high grain yield per spike. The low competition coefficients for triticale relative to rye suggest that these two species have a similar competitive pressure during the period of harvests.

Suggested Citation

  • Klimek-Kopyra, Agnieszka & Bacior, Magdalena & Zając, Tadeusz, 2017. "Biodiversity as a creator of productivity and interspecific competitiveness of winter cereal species in mixed cropping," Ecological Modelling, Elsevier, vol. 343(C), pages 123-130.
    • Handle: RePEc:eee:ecomod:v:343:y:2017:i:c:p:123-130
    DOI: 10.1016/j.ecolmodel.2016.10.012
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    Cited by:

    1. Oleksandr Zakharchuk & Andrii Hutorov & Oksana Vyshnevetska & Vitalii Nitsenko & Tomas Balezentis & Dalia Streimikiene, 2022. "Ukraine’s Market of Certified Seed: Current State and Prospects for the Future," Agriculture, MDPI, vol. 13(1), pages 1-21, December.
    2. Danuta Leszczyńska & Agnieszka Klimek-Kopyra & Krzysztof Patkowski, 2020. "Evaluation of the Productivity of New Spring Cereal Mixture to Optimize Cultivation under Different Soil Conditions," Agriculture, MDPI, vol. 10(8), pages 1-13, August.
    3. Gerhard Moitzi & Reinhard W. Neugschwandtner & Hans-Peter Kaul & Helmut Wagentristl, 2021. "Crop sequence effects on energy efficiency and land demand in a long-term fertilisation trial," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 67(12), pages 739-746.
    4. Kazimierz Klima & Agnieszka Synowiec & Joanna Puła & Maciej Chowaniak & Katarzyna Pużyńska & Dorota Gala-Czekaj & Angelika Kliszcz & Patryk Galbas & Beata Jop & Teresa Dąbkowska & Andrzej Lepiarczyk, 2020. "Long-Term Productive, Competitive, and Economic Aspects of Spring Cereal Mixtures in Integrated and Organic Crop Rotations," Agriculture, MDPI, vol. 10(6), pages 1-13, June.

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