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An Inheritance Study of Tolerance to Atrazine in a Cross of Flax ( Linum Usitatissimum L.) 1
Author(s) -
Cornstock V. E.,
Andersen Robert N.
Publication year - 1968
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/cropsci1968.0011183x000800040035x
Subject(s) - atrazine , biology , heritability , backcrossing , linum , selection (genetic algorithm) , botany , genetics , horticulture , agronomy , pesticide , gene , artificial intelligence , computer science
A selection of flax, C. I. 2484, having relatively high tolerance to atrazine (2‐chloro‐4‐ethylamino‐6‐isopropylamino‐ s ‐triazine) was crossed with ‘Koto,’ a susceptible variety. The F 3 and backcross populations were tested for tolerance to atrazine. The atrazine tolerance exhibited by C. I. 2484 behaved as a quantitive character. Heritability (broad sense) of atrazine tolerance in F 3 and BC 1 F 2 populations was estimated to be 29 and 34%, respectively. This relatively low heritability indicates that selection for atrazine tolerance in flax populations will be difficult, at least with the procedures and the criterion used in this study.