本文介绍了一种在实生苗世代准确测定和筛选高淀粉材料的有效方法——株系系统测定筛选法.此法通过对实生苗单株块茎淀粉含量的系统测定和统计,得到单株块茎淀粉含量的平均数、变异幅度和上下限,最后以所得数据的综合分析结果作为依据,准确筛选高淀粉材料.连续几年的试验结果证明这种方法可行、有效. In this paper, an effective method for accurate determination and screening of high starch material in seedling generation - strain system determination screening method was introduced.This method was based on the systematic measurement and statistics of tuber starch content in seedling of single seedlings, Content of the average, the extent of variation and the upper and lower limits, and finally the results of the data obtained as a basis for accurate screening of high starch materials for several years of test results show that this method is feasible and effective.