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Systematische Untersuchung von Bodenproben im Mikro‐Maßstab: Heterogenität der Populationen von Fusarium oxysporum , F. solani , F. roseum und F. moniliforme
Author(s) -
RodríguezMolina M. C.,
TelloMarquina J. C.,
TorresVila L. M.,
BielzaLino P.
Publication year - 2000
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.2000.00575.x
Subject(s) - biology , fusarium oxysporum , fusarium , fusarium solani , veterinary medicine , population density , population , horticulture , sampling (signal processing) , agronomy , botany , physics , medicine , demography , sociology , detector , optics
The variability of Fusarium spp. density in soil was studied in a field located in Badajoz (south‐western Spain). The upper 40 cm of each side of a 1 m × 1 m × 1 m pit were sampled intensively, taking soil samples from points 10 cm apart. The species isolated were F. oxysporum , F. solani , F. roseum and F. moniliforme . For all four sides of the pit population densities of F. oxysporum , F. solani and F. roseum significantly decreased with increasing soil depth and for all the four layers significant differences were detected between sides of the pit. Horizontal variability also occurred on a smaller sampling scale: when a layer of a side was sampled, densities might be significantly different between points in the layer. However, no clear trend in horizontal variability was observed for any species. These findings demonstrate that Fusarium spp. populations were heterogeneously distributed in this reduced soil volume.