Published in Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 1
Written by Mirela PARASCHIVU, Gheorghe MATEI, Otilia COTUNA, Marius PARASCHIVU, Reta DRĂGHICI
Climate change is expected to cause the spread of pathogens and pests in areas where they have not been relevant before, bringing new challenges for cropping systems based on crops diversification by minor cereals. Rye is a minor cereal that contributes to crop species diversity in Central and Eastern Europe, especially in marginal environments unfavourable for wheat production. During 2019-2020, a plant–pest-pathogen interaction profile was observed on Suceveana rye genotype in a randomized complete block design in dry area from Research and Development Station for Plant Culture on Sands Dabuleni in South of Romania. The best protection against leaf rust was provided by Dithane M 45+Bioinsekt (the 1st assessment = 2.98%; the 2nd assessment = 4.86%), while the best control against pests was provided by Mimox+Bioinsekt (the 1st assessment = 0.83%) and Mimox+ Decis Expert 100 EC (the 2nd assessment = 1.03%). For pests and leaf rust control was noticed the synergistic effect of insecticides and fungicides used in the experiment. Negative and significant correlations of attack degrees with grain yield (r =-0.7886**, respectively r = -0.8332**) were noticed.
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