Effects of Solar Heating for Control of Pink Root and Other Soil-borne Diseasesof Onions

• Published in: The plant pathology journal pp. 295 - 299
• Main Authors: 이찬중, 이종태, 문진성, 하인정, 김희대, 김원일, 천미건
• Format: Journal Article
• Language: Korean
• Published: 한국식물병리학회 01.12.2007
• Subjects: 농학
• ISSN: 1598-2254; 2093-9280

These experiments were carried out to examine efficacy of soil solarization for control of pink root disease by means of mulching with transparent polyethylene sheets in the hot season. The effects of soil solarization on incidence of pink-root disease caused by Pyrenochaeta terrestris and on onion growth and on populations of soil fungi were investigated. Solarization was dramatically effective in reducing pink root incidence in onion seedling and harvested onion bulb. A 30-day and 40-day solarization treatment significantly improved seedling survival and increased yield of ‘Changnyeongdeago’ onion while decreasing incidence of pink root. Populations of soil fungi from fields planted to onion were assayed on selective media. Solarization treatment was effective in reducing populations of P. terrestris, Pythium spp., and Rhizoctonia sp. in soil. Increase of yield of onion bulbs was associated with control of soilborne pathogenic fungi. Soil solarization had beneficial effects on yield, bulb diameter, or incidence of pink root. KCI Citation Count: 3