Variability and inheritance of yield components in fiber flax (Linum usitatissimum L.)
Marcin Praczyk
sekretariat@iwnirz.plInstytut Włókien Naturalnych i Roślin Zielarskich w Poznaniu (Poland)
Grażyna Silska
Instytut Włókien Naturalnych i Roślin Zielarskich w Poznaniu (Poland)
Abstract
Evaluation of variability and genetic analysis of six quantitative traits of fiber flax (Linum usitatissimum L.) was conducted. Analyses included: seed yield, 1000 seeds weight, seed capsules number, straw yield, technical length and total fiber content. Plant materials were: four parental flax varieties and six hybrids (F1 and F2) obtained by diallelic crossing of parental forms (second model of Griffing). Variability analysis was performed by one-dimensional statistical methods (mean, variability coefficient). Genetic analysis consisted of selected Mather’s genetic parameters (additive and non-additive gene action assessment, the average dominance degree) as well as heritability evaluation in narrow and broad sense. Low diversity of all tested traits (in F1 and F2 generation) was observed, but differences in heritability (in narrow and broad sense) were large. For the vast majority of traits an additive inheritance has been reported. The domination of non-additive gene action was observed only for seed yield. This shows the ability to conduct an effective selection for most of functional traits of the fiber flax in segregating generation of hybrids (F2).
Keywords:
fiber flax, inheritance, quantitative traitsReferences
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Authors
Marcin Praczyksekretariat@iwnirz.pl
Instytut Włókien Naturalnych i Roślin Zielarskich w Poznaniu Poland
Authors
Grażyna SilskaInstytut Włókien Naturalnych i Roślin Zielarskich w Poznaniu Poland
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