My wife has grown and sold vegetables at farmers markets for over 20 years. She has a B.S, in plant science from Rutgers. Different seeds do indeed have different needs for storage and different stability during storage. Most are good if stored in the refrigerator in a sealed container. My wife germinates all in flats of a good commercial artificial soil mix with bottom heat. Seedlings are transferred to plug trays until transplanting into the field. Different species need different size plug sizes. We operate on a pretty small scale right now with only about 2400 feet of row, but it is all raised bed plasticulture with drip irrigation. The tomatoes are all staked and trellised.
