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The Heritability of Agronomic and Disease Reaction Characteristics in Two Barley Crosses 1
Author(s) -
Jogi B. S.
Publication year - 1956
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1956.00021962004800070004x
Subject(s) - heritability , biology , agronomy , dominance (genetics) , genetics , gene
Synopsis A genotypic model is presented for determining the additive genetic variance among bulk progenies in self‐pollinated crops for use in calculating heritability. In the late stages of inbreeding the portion of genetic variance due to dominance is insignificant when compared to the genetic variance contributed by additive genetic effects. The heritability percentages for yield measured in 3 different experiments in barley averaged about 62% and were remarkably uniform when compared to the heritabilities of other agronomic and disease reaction characteristics measured in the F 6 barley strains. Date of heading and plant height were the most highly heritable of the agronomic characteristics, and mildew reaction was also highly heritable.