Root yield was basically controlled by the non-additive gene effect, the additive gene effect made up 25 percent of the total genetic variation for root yield characters.

• 在根产量方面,加性基因效应引起的变异占总变异的1/4,加性效应在单胚型甜菜根产量性状的遗传中也起着比较重要的作用。