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笔者试用回归分析法对６个马铃薯品种淀粉含量和大中薯比率的试验结果进行稳定性分析，并通过相关分析对淀粉含量的稳定性与五个主要农艺性状的相互关系进行了初步研究。结果表明，不同品种淀粉含量和大中薯比率的回归系数有很大差别，除大７７０１－４４淀粉含量回归系数不显著外，其系品种ｂ值均达显著或极显著水平。在淀粉含量的稳定性与主要农艺性状的相互关系研究中，淀粉含量的稳定性与出苗至成熟天数呈较强的正相关，与大中薯比率、块茎产量呈较强负相关，与株高、病毒株率呈弱负相关。
The author tried the regression analysis of the stability of the test results of the starch content of 6 potato varieties and the ratio of large to medium potato, and through the correlation analysis of starch content stability and the relationship between the five major agronomic traits were studied. The results showed that there were significant differences in the regression coefficients of different varieties of starch and the ratio of medium and large potatoes, except for the regression coefficient of starch content of 7701-44 was not significant, the b value of its varieties reached significant or extremely significant level. In the study of the relationship between the stability of starch content and the main agronomic traits, the stability of starch content showed a strong positive correlation with the number of days from emergence to maturity, the strong negative correlation with the ratio of potato and tuber, tuber yield, , The virus strain showed a weak negative correlation.