Heritability, and Intra‐ and Inter‐Generation Associations Between Tuber Yield and its Components in Potato (Solanum tuberosumL.)

摘要

AbstractThe relative importance of the components of tuber yield in selection in early generations of a potato‐breeding programme was studied. In seedling generation the number of tubers were more important than average tuber weight, whereas in clonal generations the average tuber weight was more important. Correlation coefficients between number of tubers and tuber yield varied from generation to generation whereas those of average tuber weight and tuber yield were more or less constant. Unlike the number of tubers, the average tuber weight of a genotype in a generation influenced its tuber yield in subsequent generations. The average tuber weight had higher heritability than the number of tubers and tuber yiel