Reduced fungicide inputs to controlPhytophthora infestans in potato cultivars with high levels of polygenic resistance

Autor: R. C. Clayton, R. C. Shattock
Rok vydání: 1995
Předmět:
Zdroj: Potato Research. 38:399-405
ISSN: 1871-4528
0014-3065
DOI: 10.1007/bf02357745
Popis: Final disease ratings, apparent infection rates and areas under disease progress curves were used to calculate lower fungicide rates for potato cultivars with high levels of polygenic resistance toPhytophthora infestans. Areas under disease progress curves offered more reliable indications than final disease ratings or apparent infection rates. Control of epidemic development was achieved using 20–80% of the recommended application rates of mancozeb on plots of cvs Brodick. Cara and Torridon compared with full application rates on cv. Maris Piper.
Databáze: OpenAIRE