Variability in germplasm of broomcorn (Sorghum bicolor (L.) Moench)
2005
Sikora, V.
During two year 450 genotypes of broomcorn were investigated. Plant height and its components as well as weight and components of panicle quality were studied. The obtained results were evaluated by applying variance and covariance analysis. Variability parameters were used for calculated phenotypic, genetic and ecological variance and estimate heritability. Interrelations between the traits were analyzed on the bases of phenotypic and genetic correlation coefficients. Classification of genotypes in groups by similarity was done by applying hierarchical cluster analysis. Investigated genotypes show significant variability for all analyzed traits. For all studied traits genetic variance is significantly higher than ecologic components. Highest heritability was record for plant and stalk height and lowest for flag leaf sheet. Positive genetic and phenotypic correlation were between plant height and stalk height, exertion and length of peduncle and weight of untreshed panicle and seed per panicle.
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