kahrıman, fatih çankkale onsekiz mart university - agriculture faculty - field crops department, Çanakkale, TURKEY , egesel, cem ömer çankkale onsekiz mart university - agriculture faculty - field crops department, Çanakkale, TURKEY

Heterosis and heritability analyses for plant yield and some quality traits in F1 and F2 generations of maize

34024

This study was conducted to analyze the genetic effects for grain yield and some important kernelquality traits in maize. Eight parental lines and their six hybrids were used as plant material. Fieldexperiments to evaluate plant material were carried out in two locations (Çanakkale and Bursa) in 2013.The observed traits were single plant yield, protein content and oil content. Additive, dominance andadditive × additive models were utilized to analyze the data. Variance component estimations showedthat single plant yield was under the control of dominance type gene action; while protein and oilcontent were controlled by additive type gene action. High values ( 60 %) of broad (H2) and narrowsense (h2) heritabilities were observed for protein and oil content. The mean of F1 generation for singleplant yield and oil content were higher than the mean of F2 generation for these traits. Most of hybridshad positive mid parent heterosis (Hmp) and better parent heterosis (Hbp) for single plant yield, whilethey had negative heterosis values for protein content. Except for one cross (A680×IHO), all of crosseshad positive Hmp values for oil content.

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Protein. Oil. Genetic analysis. Zea mays

Anadolu Journal Of Agricultural Sciences

243