TABLE 5

Microcosm assay to evaluate the role of microbial community in suppressive soilsa

Soil sampleΔareaSD
UC38.76B1.95
UCp46.03A0.97
UCp+UC38.81B2.23
UCp+AS34.75C0.71
AS28.75D1.87
ASp39.52B1.98
ASp+UC37.16B1.86
ASp+AS32.41C0.36
  • a The average of growth area variation (Δarea) from different types of soils and their standard deviations are shown. UC, unamended control; AS, almond shells amended soil; UCp, pasteurized control soil; ASp, pasteurized amended soil. Complemented soils in a 9:1 (wt/wt) proportion were prepared by mixing 9 parts of pasteurized soil with 1 part of fresh soil in the following combinations: UCp+UC, UCp+AS, ASp+UC, and ASp+AS. Superscript capital letters indicate significant differences between treatments (ANOVA, P = 0.05)