jerusalem artichoke from seed after a week

jerusalem artichoke from seed after a week, second photo some older plants around six weeks in small pots under lights. I got a new batch of seeds in from another source, so starting more plants to improve pollination. Hoping to grow enough varieties this summer to collect our own seed, these plants are notorious for being tricky to save seed from. Plants started from seed should have a reasonable chance vs a selection that’s only propagated by tubers - does that sound reasonable?#jerusalemartichoke