Variability of some culm morphological and mechanical traits in inbred lines of rye
Jacek Jagodziński
j.jagodzinski@ihar.edu.plZakład Genetyki i Hodowli Roślin, Instytut Hodowli i Aklimatyzacji Roślin, Radzików (Poland)
Abstract
In this paper the studies on 89 lines of rye developed at the n IHAR Radzików are presented. The aim of the studies was to determine the variability of selected morphological and mechanical traits of culm. Moreover, the relationships between these traits were examined. The lines were characterized for the culm length and mass, diameter of 1st and 2nd internodes as well as for such mechanical properties as spring constant and average culm flexural rigidity. The significant differences between the genotypes in all tested traits were found. The highest coefficients of variability were recorded for mechanical parameters, i.e. spring constant (41.3) and average culm flexural rigidity (29.3). High correlations were observed between spring constant and culm length (-0.65) and average culm flexural rigidity (0.42). The latter trait depended both on culm mass and a diameter of 1st and 2nd internodes.
Keywords:
Secale cereale L., average flexural rigidity, correlation, inbred lines, rye, spring constant, variabilityReferences
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Authors
Jacek Jagodzińskij.jagodzinski@ihar.edu.pl
Zakład Genetyki i Hodowli Roślin, Instytut Hodowli i Aklimatyzacji Roślin, Radzików Poland
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