Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 362556
Title Combined effects of solarization and organic amendment on charcoal rot caused by Macrophomina phaseolina in the Sahel
Author(s) Ndiaye, M.; Termorshuizen, A.J.; Bruggen, A.H.C. van
Source Phytoparasitica 35 (2007)4. - ISSN 0334-2123 - p. 392 - 400.
Department(s) Biological Farming Systems
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) soilborne plant-pathogens - f-sp conglutinans - soil solarization - cruciferous residues - summer irrigation - cabbage residues - sp cumini - management - growth - biofumigation
Abstract The effects of soil solarization combined or not with millet residues or paunch contents amendments, on the survival ofMacrophomina phaseolina (Tassi) Goid. and development of charcoal rot of cowpea (Vigna unguiculata), were assessed in a naturally infested soil. Solarization increased the soil temperature to 50°C for at least 4 h per day during June, leading to a significant reduction (44%) in soil inoculum ofM. phaseolina. Paunch contents or millet residues amendment (3 t ha-1) caused 16% or 35% reduction of initial inoculum density, respectively. The combination of paunch contents or millet residues amendments followed by solarization, resulted in the strongest effects on inoculum density, with reductions of 46% or 66%, respectively. The reduction in disease severity, as expressed by the area under the disease progress curve, was 78% or 96% for the combination of millet residues or paunch contents amendments and solarization, respectively. The stronger effect of the treatments on disease severity than on inoculum density may be explained by a weakening effect caused by the treatments on the remaining inoculum. Our results suggest that in the Sahelian zone the combination of solarization and organic amendment can be a credible alternative to pesticides for managing charcoal rot disease and improving cowpea yield in fields with heavy infestations withM. phaseolina.
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