Factors influencing infection of cereals by the ergot fungus /

Abstract

d f d..: .* ' or 00 x2 cath Jo* a© odd 'x. J io rqoxovc 1 orld PART I FACTORS INFLUENCING GERMINATION OF CONIDIA *

Microbial degradation of the sclerotia of two phytopathogenic fungi in the soil /

“…-' A,'' 'i &■ : Effect of the addition of glass beads to culture dishes on the yield of sclerotia of Sclerotinia sclerotiorum 11 3 Comparative effectiveness of spherical (without bottom) and flattened (with bottom) glass beads added to culture dishes on the yield of sclerotia of Sclerotinia sclerotiorum 11 4 Sclerotia production by Sclerotinia sclerotiorum in culture dishes with and without glass slides Photograph showing gemination of sclerotia of Sclerotinia sclerotiorum in natural soil to fom apothecial cup (perfect stage) after treating with mercuric chloride 32 8 Formation of 'black bodies' (shown between pairs of pins) on some 'degraded' sclerotia of Sclerotinia sclerotiorum in natural soil 38 9 Behavior of sclerotia of Claviceps purpurea and Sclerotinia sclerotiorum together in the same plate in natural soil 39 10 Behavior of peeled sclerotia of Claviceps purpurea in natural soil 45 11 Behavior of peeled and unpeeled sclerotia of Claviceps purpurea in natural soil 49 12 Fomation of 'black bodies' around the peeled sclerotia of Sclerotinia sclerotiorum in natural soil 51 13 Degradation of peeled sclerotia of Sclerotinia sclerotiorum in natural soil 52 14 Production of new sclerotia on potato sucrose agar from mycelium originating from 'black bodies' of Sclerotinia sclerotiorum fomed in natural soil from peeled sclerotia 54 form apothecia bearing ascospores and also may give rise to mycelium.…”