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为确定马铃薯主茎数与薯块产量关系而设计的一些研究得到不同的结果。Collins(1977)采用具1、2或4个主茎的植株,发现产量增加与茎数成比例。Bleasdale(1965)对不同来源的资料进行分析,得出了总薯块产量是单位面积茎数的函数的结论。Gray(1972)发现,在种薯大小一定的范围内,茎数和薯块产量之间呈线性关系。这一论点后来被Wurr(1974)用地上茎的试验所证实。然而,Goodwin等(1969)和Hammes(1985)在试验中,未发
Some studies designed to determine the relationship between potato stalks and potato yield have yielded different results. Collins (1977) used plants with 1, 2 or 4 main stems and found that the increase in yield was proportional to the number of stems. Bleasdale (1965) analyzed the data from different sources and concluded that the total potato yield is a function of the number of stems per unit area. Gray (1972) found that there was a linear relationship between the number of stems and potato yield within a certain range of seed size. This argument was later confirmed by the test of aerial stems by Wurr (1974). However, Goodwin et al. (1969) and Hammes (1985) failed in the test