Contribution to the study of Macrophomina phaseolina charcol rot of maize stalk
1994
Babovic, M. | Bulajic, A. (Poljoprivredni fakultet, Beograd - Zemun (Yugoslavia))
From diseased maize plants ZPSC 704, in the vinicity of Vlasotince (Serbia, Yugoslavia), with symptoms of charcol rot of stalk, Macrophomina phaseolina has been isolated. Investigated fungal isolates, at the beginning form whitish, and later grayish colony. Very soon colony becomes covered with dark, spherical or oval sclerotia (diameter 42-46 micrometer in average). Pathogenicity has been demonstrated on maize seeds, in treatment where seedlings were not watered for four days after germinating. Pathogenicity was not proved on maize plants with four developed leaves. The optimal temperature for colony growth and sclerocial development is 30 deg C, minimal temperature 13 deg C and the maximal 38 deg C.
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