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Heritability of Sr‐89 and Ca‐45 Accumulation in Barley Seedlings 1
Author(s) -
Fick Gerhardt N.,
Rasmusson Donald C.
Publication year - 1967
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/cropsci1967.0011183x000700040010x
Subject(s) - heritability , seedling , biology , genetic correlation , hordeum vulgare , zoology , poaceae , selection (genetic algorithm) , botany , genetic variation , genetics , gene , artificial intelligence , computer science
Heritability of Sr‐89 and Ca‐45 accumulation in seedling plants was studied in two crosses of barley. Seedling plants of parent, F 1 , F 2 , F 3 , and F 4 generations were grown in nutrient solution containing Sr‐89 and Ca‐45. Broad sense heritability estimates for Sr‐89 and Ca‐45 accumulation in the F 2 generation of the two crosses ranged from 36% to 58%. Estimates of heritability in the F 3 generation as obtained from the correlation of F 3 with F 4 , lines were 55% and 50% for Sr‐89 accumulation and 49% and 41% for Ca‐45. These estimates are sufficiently large to indicate that selection for high or low Sr‐89 and Ca‐45 accumulation would be effective on a single plant basis in F 2 and on the line basis in F 3 . Actual gains in FF 4 from hypothetical selection in FF 3 were substantial and similar to those predicted, particularly when selection was for low Sr‐89 and low Ca‐45 accumulation. Differences among lines in the ratio of Sr‐89/Ca‐45 were not heritable in the F 3 generation. Accumulation of Sr‐89 and Ca‐45 was highly correlated in the F 3 and F 4 generations. Thus, the data indicate a close relationship between Sr‐89 and Ca‐45 accumulation in the populations studied.