Abstract
Information about photosynthesis and related biosynthesis is discussed. Techniques in plant breeding might be used to exploit or improve biochemical characteristics. Through good use of plant breeding, techniques, including tissue culture with genetic modification, it may be possible to increase the distribution of photosynthate into desired products. Chemicals which can decrease photorespiration and compensation point are discussed. A scheme involving CO2 enrichment, very large greenhouses and high protein forage legumes such as alfalfa is outlined.