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通过田间试验的观察、测定和记载,可以得到大量的试验资料。由于这些原始资料杂乱、无系统,这就有必要加以整理,以显示其趋势和规律。一、资料分类经查对无误的资料,先按照某些本质特征划分为不同类型。如,在研究病虫害问题时,按病虫对作物为害的轻重程度、部位或时期来分类,就可看出病虫为害规律。下列资料是棉花杂种二代植株抗枯萎病情况的调查,按不同抗病力分组,结果是:
Through the field test observation, determination and record, you can get a lot of test data. Since these sources are cluttered and unsystematic, it is necessary to collate them to show their trends and laws. First, the data classification The correct information, according to some of the essential characteristics of the first divided into different types. For example, in the study of pests and diseases, pests and diseases according to the severity of crop damage, location or period to classify, we can see the pest and disease rules. The following information is the second generation of hybrid cotton plants Fusarium wilt disease investigation, according to different disease resistance grouping, the result is: