Biological control of basal stem rot of corn caused by Sclerotium rolfsii
1989
Kasem Soytong (King Mongkut's Inst. of Technology Chaokuntaharn Ladkrabang, Bangkok (Thailand). Faculty of Agricultural Technology)
Biological control of basal stem rot of corn (Zea mays Linn.) caused by Sclerotium rolfsii in field condition was conducted by using Chaetomium cupreum as a potential microantagonist. The experiment was done by using Randomized Complete Block Design (RCBD) with four replications. Using killed ascospores of Ch. cupreum could significantly reduce the basal stem rot of corn as effective as Pentachloronitrobenzene (PCNB). However, culture filtrate and viable ascospores of Ch. cupreum tended to control the basal stem rot of corn when compared with non-treated treatment. Accordingly, all treatments were not significantly different in terms of growth parameters such as fresh and dry weight of stem,plant height. It was concluded that using Ch. cupreum as a biological control agent tended to produce higher yield and less disease severity than the control.
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