For example, an individual can be AB, D positive, and at the same time M and N positive (MNS system), K positive (Kell system), Lea or Leb negative (Lewis system), and so on, being positive or negative for each blood group system antigen.
Nearly every list of easy-to-grow vegetables starts with lettuce, and with good reason: so long as you plant it at the right time, it will grow from seed with little attention. The right time is when the soil is cool, in the spring and fall. In Arkansas, you can plant lettuce seeds from February to April, and again in September for a fall harvest.
Decide When to Start Your Tomato Seeds: Avoid planting too early to prevent plants from becoming root-bound or spindly. Sow your certified tomato seeds 6-8 weeks before planting your seedlings outdoors. Planting your seedlings outdoors should be scheduled around 2 weeks following the average last frost date for your region. Check the climate zone map on TomatoFest or ask your local nursery, or gardening friends for the best date for you to plant. Planting Your Tomato Seeds: I advise planting 20% more seeds than the number of plants you'll want to allow for seeds that may not germinate or seedlings that become ...