甜菜是二年生作物,第一年是营养生长,第二年是生殖生长。母根经窖存翌春栽采种,既费工、成本高,又容易在窖存中窖温控制不好,植株结实株率低,甚至造成烂窖损失。母根采取带叶冬栽露地越冬,一则母根不经过切削窖存,省工,种子成本低,二则母根可以进行选择并可提高种子繁育系数及后代产质量。为此,作了试验,其结果介绍如下: Beets are biennial crops, with vegetative growth in the first year and reproductive growth in the second year. The mother root cellar will be planted in the next spring to collect seeds, which is not only labor-intensive and costly, but also easy to control the pit temperature in the cellar. The rate of stubble plants is low and the loss of the rotten pit is even caused. Mother roots taken winter wintering open field, a mother root without cutting cellar save, labor, low cost of seeds, two mother roots can choose and can improve the seed breeding coefficient and the quality of future generations. To this end, made a test, the results are described below: