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Flax Cultivars with multiple Rust‐conditioning Genes 1
Author(s) -
Flor H. H.,
Comstock V. E.
Publication year - 1971
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/cropsci1971.0011183x001100010021x
Subject(s) - cultivar , biology , backcrossing , rust (programming language) , gene , plant disease resistance , botany , horticulture , agronomy , genetics , computer science , programming language
Lines of seed.flax ( Linum usitatissimum L.), each with a different gene for rust resistance, were developed by backcrossing to the cultivar ‘Bison.’ The monogenic Bison‐like lines were intercrossed to provide two‐gene segregates. Intercrossing two‐gene lines, with one gene in comtnon, develnped three‐gene lines. The selective pathogenicity of races of Melampsora lini (Ehrenb.) Lev., was utilized to identify plants that possessed the parental resistance genes. In a 3‐year trim (1966–1968) at Fargo, North Dakota, yield differences between 20 multiplegene cultivars and five commercial cultivars were not significant. Most of the experimntal cultivars would be satisfactory for commercial production.