The possibilities of reduction of winter barley chemical protection by growing variety mixtures. Part I. Effect on powdery mildew level
More details
Hide details
Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
NIAB, Cambridge, U.K.
Corresponding author
Anna Tratwal
Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
Journal of Plant Protection Research 2007;47(1):65-77
In the four-year experiment the impact of four different winter barley varieties and selected two- and three-component mixtures were tested. Reduced dosages of fungicides on disease reduction in the mixtures compared with pure stands were evaluated. The studies were carried out at two sites: Experimental Station for Variety Testing Słupia Wlk. (Wielkopolska region) and Plant Breeding Station Bąków (Opole District). Observations on powdery mildew occurrence during the vegetation season were done every 7–10 days. In order to compare the disease occurrence levels on different cultivars in pure stands and on their mixtures combined with different fungicide treatments the Area Under Disease Progress Curve (AUDPC) was evaluated. On the base of the AUDPC values the reduction of powdery mildew occurring in the mixtures due to epidemiological and ecological factors functioning in mixed stands were also evaluated. On the base of obtained results it can be stated that winter barley variety mixtures combined with different fungicide treatments do reduce the powdery mildew incidence comparing to pure stands and winter barley variety mixtures can constitute an alternative way of growing winter barley, especially at low-input and ecological agriculture.
The authors have declared that no conflict of interests exist.
Finckh M.R., Gacek E.S., Goyeau H., Lannou Ch., Merz U., Mundt C.C., Munk L., Nadziak J., Newton A.C., de Vallavieille-Poppe C., Wolfe M. S. 2000. Cereal variety and species mixtures in practice, with emphasis on disease resistance. Agronomie 20: 813–837.
Finckh M.R., Gacek E.S., Czembor H.J., Wolfe M.S. 1999.Host frequency and density effects on powdery mildew and yield in mixtures of barley cultivars. Plant Pathol. 48: 807–816.
Finckh M.R., Wolfe M.S. 1997. The use of biodiversity to restrict plant diseases and some consequences for farmers and society. p. 199–223. In: “Ecology in Agriculture” (L.E. Jackson, ed.). Academic Press. San Diego.
Gacek E. 1986. Zastosowanie mieszanin odmian do zwalczania mączniaka prawdziwego jęczmienia. Rocz. Nauk Roln. – Seria E – Ochrona Roślin 15 (2): 95–103.
Gacek E., Czembor H.J., Nadziak J. 1994. Disease restriction, grain yield and its stability in winter barley cultivar mixtures. p. 185–190. In “Proceedings of the Third Workshop on Integrated Control of Cereal Mildews Across Europe”. Kappel a. Albis, Switzerland, 5–9 November 1994.
Gacek E., Czembor H.J., Nadziak J. 1996. Wpływ zróżnicowania genetycznego w mieszaninach i mieszankach zbożowych na rozwój chorób i plonowanie. Biul. IHAR 200: 203–209.
Gacek E., Czembor H.J., Nadziak J. 1997. Zastosowanie mieszanin odmian do poprawy zdrowotności oraz wysokości plonowania pszenicy ozimej. Biul. IHAR 201: 81–93.
Gacek E., Nadziak J. 2000. Zastosowanie mieszanek odmian do poprawy zdrowotności oraz plonowania jęczmienia jarego. Biul. IHAR 214: 143–158.
Wolfe M.S., Finckh M.R. 1997. Diversity of host resistance within the crop: effects on host, pathogen and disease. p. 378–400. In: “Plant Resistance to Fungal Diseases” (H. Hartleb, R. Heitefuss, H.H. Hoppe, eds.). G. Fisher-Verlag, Jena.
Newton A.C., Guy D.C., Nadziak J., Gacek E.S. 2002. The effect of inoculum pressure, germplasm selection and environment on spring barley cultivar mixtures efficacy. Euphytica 125: 325–335.
Wolfe M.S., Schwarzbach E. 1975. The use of virulence analysis in cereal mildews. Phytopathologische Zeitschr. 82: 297–307.
Journals System - logo
Scroll to top