The relative genetic progress of fruit flesh thickness, fruit dry weight and fruit fresh weight was higher, which could be improved efficiently by fewer generation selections.

果肉厚度和果实干、鲜重的相对遗传进度较高，通过较少次的选择可得到有效的提高。

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The total root number, the fresh root weight, the dry root weight were mainly controlled by the additive effect, and had higher stable heritabilities.

根系性状中的根鲜重、根干重、根总条数等性状的遗传以加性为主，遗传力高，能稳定遗传，其转育及早代选择有效；

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The heritability of dry matter content, number of green leaves and length of vine was higher, weight of fresh tuber, weight of marketable tuber and weight of dry tuber have lower heritability.

广义遗传力以烘干率、绿叶数和蔓长较高，而鲜薯重、大中薯重和薯干重的广义遗传力较低。

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