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Dataset for: Resistance inductors in late blight management in potato cultivars with different genetic resistance level

International Potato Center Dataverse OAI Archive

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Title Dataset for: Resistance inductors in late blight management in potato cultivars with different genetic resistance level
 
Identifier https://doi.org/10.21223/P3/MGWA3Z
 
Creator Sanabria, Kimberlayn
Perez, Willmer
Andrade-Piedra, Jorge
Sanchez, Daniel
 
Publisher International Potato Center
 
Description The most important disease in the worldwide potato production is late blight (LB). In developing countries, fungicide sprays are the main control practice used by farmers to disease control, however, they not use protective clothing and it is high risk for their health and environment. This study determined the efficacy of resistance inductors (RIs) in control this important constraint in the Peruvian highlands. Plantlets of susceptible cv. Yungay previously sprayed with PKplus, Manvert Biolet, Miconic y Manvert Silikon (commercial RIs) were inoculated with a representative isolate (POX067) from current P. infestans population under laboratory and greenhouse conditions. High values of foliage protection until 15 days after applied RIs were only obtained with PKplus and Manvert Biolet. These products were used in four potato cultivars with different levels of susceptibility in three endemics places to LB. The treatments were based in applications alone or alternated of PKplus, Manvert Biolet, and Antracol, use of a decision support system (DSS), and control plot without fungicides. Evaluations of disease severity, yield, environmental impact (EI) and marginal rate of return (MRR) were carried out in all experiments. The treatments most effective considering a low EI and MRR above 50% for susceptible cultivars were applications of PKplus and Antracol alone or PKplus alternated with Antracol. For moderately resistant cultivar was applications of PKplus and Manvert Biolet alternated with Antracol and applications of Antracol alone and for resistant cultivar was only applications of Antracol alone. The DSS presented high values of MRR in susceptible cultivars but EI was greater than other treatments.
 
Subject Agricultural Sciences
Late blight
Resistance inductor
Environmental impact
Endemic areas
 
Language English
 
Contributor Administrator, CIP
International Potato Center
 
Type xls