TABRİZİ, Hossein Zeinalzadeh islamic azad university - Young Researchers Club, ايران , ŞAHİN, Esin Ataturk University - Faculty of Agriculture - Department of Field Crops, Turkey , HALİLOĞLU, Kamil Ataturk University - Faculty of Agriculture - Department of Field Crops, Turkey

Principal Components Analysis of Some F1 Sunflower Hybrids at Germination and Early Seedling Growth Stage

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Estimating genetic diversity inside breeding materials using morphological, physiological and biochemical data and selection of superior hybrids are essential in sunflower breeding programs. Principal components analysis is one of the multivariate statistical methods that can be utilized for genetic diversity estimation and grouping of genotypes through biplot diagrams. In order to study the principal components analysis of some F1 sunflower hybrids at germination and early seedling growth stage, a randomized complete block design has been conducted with three replications. Plant materials consisted of 18 single cross sunflower hybrids set of six male restorer lines crossed with 18 female (CMS) lines using the North Carolina Design I scheme. The first calculated two components accounted for 80.93 % of the variability in the original data. Seed vigor index (SVI) has a highest weight in the first component while second component was more associated with the shoot/root ratio (SHRR). Based on the created biplot diagram, three distinct groups could be differentiated.

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genetic diversity , hybrid , principal components analysis , sunflower

Journal Of Agricultural Faculty Of Atatürk University

109