The influence of winter wheat cultivation in mixtures and pure stands on plant yielding and the occurrence of powdery mildew (Blumeria graminis f. sp. tritici) and cereal pests
Felicyta Walczak
sekretariat@iorpib.poznan.plInstytut Ochrony Roślin — PIB, Poznań (Poland)
Anna Tratwal
Instytut Ochrony Roślin — PIB, Poznań (Poland)
Kamila Rosiak
Instytut Ochrony Roślin — PIB, Poznań (Poland)
Abstract
In recent years over 70% of the agricultural area in Poland has been occupied by cereal crops, mainly by winter wheat and spring wheat. The crops can reach several thousand hectares, and plants of the same cereal species or even cultivar are grown there year after year. The decrease in quantity and quality of cereal yields may result from unfavourable weather and/or soil conditions and from the crop infection by fungal diseases (especially by powdery mildew caused by Blumeria graminis f. sp. tritici) and by pests (particularly by leaf beetle — Oulema spp., aphids — Aphididae, and leaf-miner flies — Agromyzidae). The results of the investigations presented in this paper show that cultivation of winter wheat in mixtures, compared to pure stands, resulted in the increase in yield. Moreover, the cultivation in mixtures reduced both the occurrence of powdery mildew and the population of leaf beetles.
Keywords:
grain pests, powdery mildew, spring wheat, winter wheatReferences
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Authors
Anna TratwalInstytut Ochrony Roślin — PIB, Poznań Poland
Authors
Kamila RosiakInstytut Ochrony Roślin — PIB, Poznań Poland
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Copyright (c) 2009 Felicyta Walczak, Anna Tratwal, Kamila Rosiak
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