多态性信息含量法评价马铃薯品种(系)营养成分

Polymorphism Information Content Method to Evaluate Nutrients of Potato Varieties( lines)

对52个马铃薯新品种(系)进行了硫、铁、铜、锰、硒、蛋白质、Vc含量的测定,并用多态性信息含量法对测定结果进行了分析。结果表明,PIC值由大到小顺序为铁(0.786)>维生素C(0.707)>锰(0.679)>蛋白质(0.643)>铜(0.638)>硫(0.598),表明不同品种(系)马铃薯铁含量的多态性信息最丰富;变异系数由大到小顺序为维生素C(41.56%)>锰(25.92%)>铁(25.36%)>铜(22.28%)>硫(16.35%)>蛋白质(15.93%),表明通过杂交更容易选育出块茎Vc含量高的品种;紫云一号、S03-3349,S03-3417等3个品种(系)在多个指标上优于或接近合作88(CK1),为具有较高营养价值的马铃薯新品种(系)。

The contents of S, Fe, Cu, Mn, Se, protein, vitamin C in 52 potato varieties （llnes） were determined by the polymorphism infor- marion content method. The results showed that the order of PIC value was Fe （0.786） 〉 vitamin C （0.707） 〉 Mn （0.679） 〉 protein （ O. 643 ） 〉 Cu （ 0.638 ） 〉 S （0.598）, which indicated that the Fe content had the most abundant polymorphism information. The order of coefficient of variation was vitamin C （41.56 %） 〉Mn （25.92 %） 〉 Fe （25.36 %） 〉 Cu （22.28 %） 〉 S （16.35 %） 〉 protein （ 15.93 % ）, which indicated that the variety with high Vc content should be easily obtained by hybrid breeding. Ziyun No. 1, S03-3349, S03-3417, their several indexes were in advance of or approximate to cooperation 88 （ CK1 ）, so they were good potato varieties （lines） with higher nutritional value.