TABLE 1.
Results of AMOVA showing the soil effect on the genetic variability of nodulating S. meliloti populations
| Analysis | Source of variationa | November 1994
|
August 1995
|
September 1997b
|
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Variance component | % of total | P value | Variance component | % of total | P value | Variance component | % of total | P value | ||
| A | Total population, among soils | −0.008 | −0.20 | 0.50036 | −0.199 | −5.03 | 0.70240 | 0.046 | 1.54 | 0.33372 |
| B | cv. Estival, between soils | 0.362 | 9.56 | 0.00185 | 0.170 | 4.61 | 0.03608 | |||
| C | cv. Lodi, between soils | 0.221 | 7.56 | 0.00200 | 0.439 | 11.67 | 0.02157 | 0.070 | 2.16 | 0.16448 |
| D | cv. Oneida, between soils | 0.931 | 22.66 | 0.00212 | 0.187 | 5.94 | 0.00891 | 0.039 | 1.45 | 0.20127 |
a
The results of only the first level of the hierarchical analysis are reported.
b
In September 1997, the effects were analyzed only for cultivars Lodi and Oneida.