Results of studying potato resistance degree to potato wart disease agent Synchytrium endobioticum (Schilb.) Perc. | Результаты изучения степени устойчивости картофеля к возбудителю рака Synchytrium endobioticum (Schilb.) Perc.
2011
Ivanchuk, N.N, National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute of Plant Protection | Sereda, G.M. | Zhukova, M.I., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute of Plant Protection
Testing of potato (Solanum tuberosum) wart disease resistance on infection background of fungus Synchytrium endobioticum with vegetation experimental research in quarantine lysimeters was realized in the conditions of the Republic of Belarus in 2006-2010. The experiment was realized on infection background of fungus Synchytrium endobioticum in ground on susceptible to disease breed Voltman. It is shown that a basis of potato protection against wart disease (Synchytrium endobioticum (Schilb.) Perc.,) is created by resistant varieties. There was marked the importance of selection of material immunological evaluation for wart disease resistance (pathotype D1), providing with the creation of local potato varieties with the given sign in Belarusian breeding programs. It was determined that by zoosporangium powder application, the fungus infection ability reproduced on sensitive varieties and hybrids can be changed with the expression of different parasite aggressively. There was set that strategic basis of potato wart disease Synchytrium endobioticum protection is disease-resistant breeds. In accordance with preliminary (first and second years) findings test number of potato exemplars from breeding offices of the Republic of Belarus and Russian Federation, which were resistant to potato wart disease pathotype D1, was 84,0% average in 2006-2010; result of state testing – 92,4%. Infection ability of fungus Synchytrium endobioticum, which was reproduced on amenable breeds and hybrids, can be changed with expression of different pathogene aggressivity. Results of assessment to potato wart disease persistence were used by plant breeders during creation of breeds Ragneda, Uladar, Yanka, Vektar, Zorachka.
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