中国马铃薯2025，Vol.39Issue(5)：351-355,5.DOI:10.19918/j.cnki.1672-3635.2025.05.004
12个马铃薯杂交组合的杂种优势分析
Analysis of Heterosis in 12 Potato Cross Combinations
摘要
Abstract
In this study,13 varieties(lines)including'CIP-109'were employed as parents to assess heterosis across eight traits in the clonal F1 generation of 12 cross combinations.All eight traits demonstrated varying degrees of heterosis.The ranking of traits based on heterosis over mid-parent was as follows:plant height>tuber weight>yield per plant>marketable tuber yield>number of tubers per plant>number of marketable tubers>marketable tuber percentage>number of main stems.For heterosis over standard,the order was:tuber weight>marketable tuber yield>marketable tuber percentage>yield per plant>number of marketable tubers>plant height>number of tubers per plant>number of main stems.Regarding heterosis over high parent,the sequence was:plant height>yield per plant>tuber weight>number of tubers per plant>marketable tuber percentage>number of marketable tubers>marketable tuber yield>number of main stems.Based on comprehensive evaluation of high-parent,mid-parent,and standard heterosis,and F1 potato late blight resistance,the combinations A5×A13(L0527-4×Xihai 35),A6×A13(1002-1×Xihai 35),A8×A13(Yunshu 103×Xihai 35),and A10×A13(109-1×Xihai 35)were identified as superior ones with strong resistance to late blight and strong heterosis.Therefore,by expanding the population size of these combinations,excellent lines could be selected out.关键词
马铃薯/杂交组合/杂种优势/产量性状/晚疫病抗性Key words
potato/cross combination/heterosis/yield component/late bight resistance分类
农业科技引用本文复制引用
白磊,赵宇霞,王琼,李俊,杨芳,郭华春..12个马铃薯杂交组合的杂种优势分析[J].中国马铃薯,2025,39(5):351-355,5.基金项目
财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-09-P15) （CARS-09-P15）
云南省重大科技专项(202402AE09001702). （202402AE09001702）
