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Genetic analysis of several traits in potatoes by means of a diallel cross
Author(s) -
KILLICK R. J.
Publication year - 1977
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1977.tb01841.x
Subject(s) - diallel cross , biology , horticulture , genetic variation , microbiology and biotechnology , agronomy , genetics , hybrid , gene
SUMMARY Genetic variation for nine traits of importance in potatoes was analysed in a half‐diallel set of crosses with six parents. General combining ability (GCA) effects were responsible for differences in maturity. For the other traits (yield, number of tubers, mean tuber weight, percentages of cracked and diseased tubers, texture and blackening following cooking and specific gravity) special combining ability (SCA) was important. The correlations between the traits were calculated. The implication for breeding is that trial crossing would be necessary to identify progenies with good potential. The analyses revealed associations between traits which are potentially useful to the breeder.