Intensity of Fusarium sp. Attack in Maize (Zea mays L.) under Different Fertilization Treatments in Conditions from Transylvanian Plain

Gabriel Barșon, Loredana Alexandra Suciu, Laura Șopterean, Ioana Crișan, Matei Marcel Duda

Abstract


Maize crop is highly dependent of inputs to maximize yields. Current goal in agriculture is to obtain high yields with balanced inputs and low pesticide application. The aim of this research was to explore the relationship between six fertilization regimes and intensity of Fusarium infection of maize ears for three maize hybrids in conditions from Transylvanian Plain during 2018-2020. Results showed that climatic conditions accounted for largest share of the variance (31.4%) for intensity of Fusarium infection of the maize ears, followed closely by genetic factor (30.7%) and the interaction of these two factors (year × hybrid). A lower share of variance was explained by fertilization as well as double interactions (year × fertilization; hybrid × fertilization) and triple interaction between factors (year × hybrid × fertilization). The average Fusarium sp. infection intensity of maize ears obtained in the experiment was 0.46% and ranging from a minimum of 0.04% registered in 2019 by the hybrid ‘PR37N01’ following application of Complex + CAN + Rootip Basic + Energevo, to maximum of 1.41% registered in 2018 by the hybrid ‘Turda 332’ following application of Complex + CAN. Study of the inter-relationship between disease occurrence and inputs could deepen the knowledge necessary to optimize the maize crop cultivation.  

 


Keywords


crop, health, grains, climate, genotype.

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