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本文运用灰色关联度分析方法,对马铃薯一、二季种的7个主要性状产量的关联序进行了比较。结果表明,一季种的关联序为单块茎重>株高>茎粗>基本茎数>大中薯重率>大中薯数率,说明一、二季种的关联序基本一致。因此,在育种过程中选择块茎较大,个数较多,株高较高,茎粗较粗的品系,并结合其它性状综合选择,就能选育出适宜一、二季栽培的高产品种。
In this paper, gray relational grade analysis was used to compare the correlations of yield of seven major traits of the first and second seasons of potato. The results showed that the correlation sequence of one season was single plant stem weight> plant height> stem diameter> basic stem number> weight of medium and large potatoes> number of medium and large potatoes, indicating that the correlation order of the first and second seasons was basically the same. Therefore, in the breeding process to select a larger tuber number, higher plant height, thick stem coarse lines, combined with other comprehensive selection of traits, we can breed suitable for the cultivation of high yield varieties in the first and second seasons.