Bryan Connolly The Wisdom of Plant Heritage.
Part of the NOFA guides. Straightforward guide to strengths and limitations of hybrid varieties. Before you grow the seed -selecting varieties, saving seed and improving crops, intellectual property rights. Growing seed -pollination biology, harvesting, cleaning, storage, germination testing. Details on individual crops-amaranth, crucifers, beets and chard, lettuce, cucurbits, corn and small grains, nightshades, root veggies. Plus detailed appendices including more info on seed cleaning, seed companies, and more >~section~