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马铃薯地上部营养体是形成产量的重要因素之一,与块茎膨大速度呈曲线正相关。营养体的形成随株龄的增长呈直线上升趋势,品种不同则上升的程度也不同。块茎膨大速度从蕾期至成熟一直呈直线上升,品种不同则膨大速度不同。营养体与产量呈直线正相关。据此,根据营养体的量变数据可预测旱作马铃薯块茎产量的高低,同时也可作为选育丰产型品种的一个重要依据。
The vegetative shoots of potato is one of the important factors in yield formation, which is positively correlated with tuber expansion rate. The formation of vegetative body showed a linear upward trend with the increase of plant age, and the degree of increase was also different with different varieties. Tuber expansion rate from the bud to maturity has been a straight line rise, different varieties of different inflation rate. There is a linear positive correlation between nutrients and yield. Therefore, based on the quantitative data of vegetative soils, it can predict the tuber yield of dry-cultivated potato and can also be used as an important basis for breeding high-yielding varieties.