Quantitative Inheritance of Some Wheat Agronomic Traits

Ege University, Faculty of Agriculture, Department of Field Crops, 35100, Izmir, Turkey


AYKUT TONK, F., E. ILKER and M. TOSUN, 2011. Quantitative inheritance of some wheat agronomic traits. Bulg. J. Agric. Sci., 17: 783-788

The objective of this study was to estimate gene effects for some agronomical traits (plant height, fertile tiller number, spike length, spikelet number per spike, peduncle length, flag leaf sheath length and flag leaf area) using six generations (P1, P2, F1, F2, BC1 and BC2) of Basribey x Atilla-12 cross in order to improve some agronomical traits of Basribey variety, which is widely grown in the Aegean Region. Genetic analyses were performed using by the joint scaling test based on three and six parameter models. In addition to additive and dominance gene effects, epistatic effects were significant for all measured traits due to different origins of the parents used in the study. It was suggested that selection for all agronomical traits should be effective in advanced segregating generations due to epistatic gene effects.

Key words: Bread wheat, joint scaling test, six parameter models, gene effects

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