Influence of seed potato spring dressing on occurrence of black scurf and yield quantity and quality
Jerzy Osowski
j.osowski@ihar.edu.plZakład Nasiennictwa i Ochrony Ziemniaka w Boninie, Instytut Hodowli i Aklimatyzacji Roślin w Radzikowie (Poland)
Abstract
The effectiveness of the chemical control of black scurf (Rhizoctonia solani) development on the potato plants and tubers was estimated in field trials. Potato seed tubers were dressed with the chemicals: Vitavax 200 FS and Monceren 250 FS 2–3 days before planting. After harvest, 10 kg samples of tubers (from each plot) were washed and visually assessed for black scurf and crop fractions. The results showed that all the tested chemicals were efficient in the black scurf control in the years 1999–2002 (statistically significant). The use of dressing caused yield increase of large tubers from 26.5% to 48.5% for the variety Bryza and from 0.5 to 12.0% for the variety Rywal.
Keywords:
Rhizoctonia solani, potato, seed dressingReferences
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Authors
Jerzy Osowskij.osowski@ihar.edu.pl
Zakład Nasiennictwa i Ochrony Ziemniaka w Boninie, Instytut Hodowli i Aklimatyzacji Roślin w Radzikowie Poland
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