Breeding Sugar Beets

摘要: The sugar beet Beta vulgaris L. is a product of plant breeding. It one the few major cultivated crops that was not grown in prehistoric times. developed Europe less than 200 years ago by selecting best types from fodder beets as forage for livestock. Beet rapidly became an important article world trade and now supplies about 45% world’s commerce. primary source USSR. About one-third used United States comes domestically beets. Sugar are 13 states three provinces Canada. In States, gross yield roots averages 40–50 tons per hectare, which 7 obtained. Under favorable conditions, yields 50–75 may be produced. sucrose stored normally ranges to 18% weight, varying with variety, its culture, climate grown. An inverse ratio between tonnage percentage exists; hectare increased, either cultural methods or breeding, tends decline.