Population Dynamics of <Emphasis Type="Italic">Monosporascus</Emphasis><Emphasis Type="Italic">cannonballus</Emphasis> Ascospores in Marsh Soils in Eastern Spain |
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| Authors: | R?Beltrán A?Vicent Jr" target="_blank">R?SalesJr J?García-Jiménez Email author" target="_blank">J?ArmengolEmail author |
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| Institution: | (1) Instituto Agroforestal Mediterráneo, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain;(2) Escola Superior de Agricultura de Mossoró, ESAM, Caixa Postal 137, 59.600-970 Mossoró, RN, Brasil |
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| Abstract: | The population dynamics of Monosporascus cannonballus ascospores in the soils of four muskmelon fields located in a marsh area in Castellón province (eastern Spain) was studied
for a 3 year period. Two of these fields were cropped to muskmelon with fallow periods between muskmelon cropping, and the
others were in fallow and had extensive flooding periods. Muskmelon cultivation resulted in a progressive increase of the
number of ascospores in soil, reaching a maximum 7 months after muskmelon planting (2–4 months after plant death), and a subsequent
decline during fallow periods between muskmelon crops. During muskmelon cropping, in-bed and between-bed ascospore numbers
were compared and, in general, there were no statistical differences between them. In the fields which were in fallow and
flooded, the dynamics found was a progressive decline of the population of ascospores. Soilborne inoculum was viable and capable
of infecting muskmelon at the end of the 3 year period in all fields, demonstrating that ascospores of M.␣cannonballus are able to survive for this period of time in the absence of muskmelon cultivation and also that this fungus seems to be
well adapted to survive in soils which maintain a high water table during the crop or under flooding conditions. |
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| Keywords: | Cucumis melo fallow flooding soilborne inoculum vine decline |
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