I just wrote a manuscript based on a trial in the fall of 2009. I was running the annual germination trials - most states require that germination percentages are included on seed labels. I had read that vermicompost (worm castings) affect germination of seeds of various crops including tomatoes.

Each year seeds lose viability and germination decreases even when properly stored.  I had old seeds of a particular variety. Last year the germination was 64%. 60% is the minimum standard. We suspected that their germination would be substandard and would have to be used for plant production.

The specific results will be published, but the answer to the original questions is that in this trial, yes, vermicompost increased germination of the seeds. The data were analized statistically and the effect was statistically significant. How about that?