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采种甜菜挖心、打薹尖是一项人工解除种株顶优,促进块根部分侧芽发育成花枝而达到改变种株花枝类型、创造丰产枝型的有效增产措施。试验表明,挖心、打薹尖的越冬母根大小与单株产种量均呈直线回归关系,是一组斜率相同的平行线,但其回归截距有显著、极显著差异,打薹尖的单株产量显著高于挖心处理的单株产
Seeding sugar beet digging, sprinkling tip is a top-lifting artificial solution to promote the development of part of the lateral buds into the flowering branches to achieve the type of plant branches to change, to create a yield-efficient yield measures. The results showed that the size of the overwintering parental roots in digging and bolting tip showed a linear regression relationship with the yield per plant, which was a set of parallel lines with the same slope. However, the regression intercept was significant and extremely significant, The yield of single plant was significantly higher than that of the single plant with digging heart