Abstract
The quantitative determination of Macrophomina phaseolina population in an arid soil was carried out utilizing a selective medium. The population of the fungus increased under continuous monocropping with a susceptible host, but considerable reduction was recorded with crop rotation or a change in crop sequence. The effects of fungi, bacteria, actinomycetes, total microbial population, minimum and maximum soil temperature on the survival of M. phaseolina population were studied in the absence of a crop at different soil depths. Highest population and survival rates were recorded at 0–5 cm soil depth. Correlation and path coefficient analyses were carried out to determine the role of individual factors influencing M. phaseolina population. In winter months, low temperature and high actinomycete population were found to be the major factors governing the reduction of the population of M. phaseolina.
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Lodha, S., Mathur, B.K. & Solanki, K.R. Factors influencing population dynamics of Macrophomina phaseolina in arid soils. Plant Soil 125, 75–80 (1990). https://doi.org/10.1007/BF00010746
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DOI: https://doi.org/10.1007/BF00010746