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Genetic Variability After 65 Generations of Selection in Illinois High Oil, Low Oil, High Protein, and Low Protein Strains of Zea mays L. 1
Author(s) -
Dudley J. W.,
Lambert R. J.
Publication year - 1969
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1969.0011183x000900020021x
Subject(s) - biology , zea mays , selection (genetic algorithm) , replicate , high protein , genetic variation , genetic variability , botany , zoology , agronomy , genetics , genotype , gene , food science , statistics , mathematics , artificial intelligence , computer science
Significant genetic variability, as measured by variation among half‐sib family means, was found for both oil and protein content after 65 generations of selection in Illinois high oil (IHO), low oil (ILO) high protein (IHP) and low protein (ILP) strains of maize ( Zea mays L.). Correlated responses between oil and protein over the 65 generations of selection have been small. Predicted gains per generation based on selection of the upper 20% of half‐sib families from a test of one replicate grown at one location in one year were slightly higher than those observed as an average of 65 generations for IHP and ILP and lower for IHO and ILO.