A burgonya lombfitoftórával (Phytophthora infestans (Mont.) de Bary) szembeni rezisztencia nemesítési törekvések és eredmények a MATE Burgonyakutató Állomásán

Authors

  • István Wolf Hungarian University of Agriculture and Life Sciences, Potato research station, Keszthely, e-mail: wolf.istvan@uni-mate.hu (corresponding author)
  • Zsolt Polgár Hungarian University of Agriculture and Life Sciences, Potato research station, Keszthely, e-mail: polgar.zsolt@uni-mate.hu https://orcid.org/0000-0003-3604-9984

Keywords:

late blight, resistance breeding, wild Solanum species, parental lines, resistance level, plant protection proposal

Abstract

The most effective protection against the pathogen of potato late blight (Phytophthora infestans (Mont.) de Bary), which causes serious epidemics, is if the plant itself is resistant to the pathogen. The MATE Potato Research Station has been carrying out phytophthora resistance breeding program involving several wild Solanum species for decades. In our experiments, the resistance inheritance efficiency of the parental lines used in the breeding program was determined by small-plot field trials of their offspring according to the EUCABLIGHT methodology, while the determination of the resistance level of the variety candidates and released varieties was determined by artificial infection of whole plants in greenhouse experiment. Based on our results, 17.8% of the genotypes examined in the experiment were highly susceptible, 35.7% were moderately susceptible, 9.5% were slightly resistant, 25.0% were moderately resistant and 12.0% were highly resistant. Among the parental lines, Sárpo Mira, White Lady, FH 97.021. 02 and 01.739 are most likely inherit the resistance genes to phytophthora. The intensive use of these parents in the breeding program is adviced. In our tests, we determined the phytophthora resistance level of 7 varieties and two variety candidates, based on which we formulated an integrated plant protection proposal for growers.

References

Bakonyi, J. and Érsek, T. 1997. First report of the A2 mating type of Phytophthora infestans on potato in Hungary. Plant Dis. 81. 1094.

Bakonyi, J., Laday, M., Dula, T. and Érsek, T. 1998. Characterisation of Phytophthora infestans isolates from Hungary. Acta Phytopath. et Entomol. Hung. 33. 49-54

Black, W., Mastenbroek, C., Mills, W. R. and Peterson, L. C. 1953. A proposal for an international nomenclature of races of Phytophthora infestans and of genes controlling immunity in Solanum demissum derivatives. Euphytica 2. 173-179.

Hohl, H. R. and Iselin, K. 1984. Strains of Phytophthora infestans from Switzerland with A2 mating type behaviour. Transactions of the British Mycological Society 83. 529-530.

Paluchowska, P. Śliwka, J. and Yin, Z. 2022. Late blight resistance genes in potato breeding. Planta 255. https://doi.org/10.1007/s00425-022-03910-6

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Published

2023-04-15

Issue

Vol. 27 No. 1 (2023): Supplement: XXXII. Keszthelyi Növényvédelmi Fórum

Section

Articles

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Copyright (c) 2023 István Wolf, Zsolt Polgár

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