Tray assemblies for use with seeds, and related methods

A method for treating and planting batches of seeds, the method comprising:

• positioning multiple seeds in a tray assembly via a seed planting system including:
• positioning the seeds in openings of a staging tray of the tray assembly, such that each opening includes one seed;
• and
• actuating a first divider of the tray assembly to release the seeds from the openings of the staging tray to aligned wells of a holding tray, by moving perforated openings of the first divider out of alignment with each of the openings of the staging tray to thereby allow the seeds to move from the openings of the staging tray to the wells of the holding tray;
• after positioning the multiple seeds in the tray assembly, treating the seeds with a treatment fluid while the seeds are in the tray assembly;
• and then
• transferring the seeds from the tray assembly to a germination tray, thereby planting the seeds in the germination tray, while maintaining single seed identity of the seeds from the tray assembly to the germination tray.