论文部分内容阅读
甜菜是二年生异花授粉作物,其育种难度较大。但由于育种家们的努力,现在已经育成了丰产、高糖、抗病和工艺纯度高等各种类型的品种。1976年报导,世界平均甜菜苗产达3,746斤。从含糖率来看,,据1976年报导,美、苏、英、法、波、西德等十二国平均为16.2％,比1850年F·库安厄育成的“帝国甜菜”高2.5度。为使我国甜菜育种工作适应“四化”建设的要求,作到多出、快出甜菜优食品种。现将国外甜菜育种工作,略予综述,作为进一步深入开展甜菜育种工作借鉴。
Beets are biennial cross-pollination crops, breeding more difficult. However, due to the efforts of breeders, various types of cultivars have been bred with high yield, high sugar, disease resistance and high technical purity. It was reported in 1976 that the world’s average beet seedlings yield reached 3,746 pounds. From the sugar rate, according to the 1976 report, the United States, the Soviet Union, Britain, France, Poland, West Germany and other countries an average of 16.2%, higher than the 1850 F · Cohen Educated “Imperial Beet” 2.5 degree. In order to adapt our beet breeding work to the requirements of the “four modernizations”, we should make efforts to make more beet varieties. Now the overseas beet breeding, a little summary, as a further in-depth study of beet breeding.