African Journal of Agricultural Economics and Rural Development

African Journal of Agricultural Economics and Rural Development ISSN 2375-0693 Vol. 8 (11), pp. 001-006, November, 2020. © International Scholars Journals

Full Length Research Paper

Genetic control of different traits in maize inbred lines (ZEA  MAYS L.) using graphical analysis

Zahra khodarahmpour

Islamic Azad University, Shoushtar Branch, Shoushtar, Iran. E-mail:

Accepted 12 October, 2020


This study was carried out in order to investigate the genetic structure of the twenty-eight maize hybrids established from eight maize inbred lines. The seed of the F1 population along with their parents were planted in Iran in 2008, using RCBD with three replications. Estimation of gene effects and some of the genetic parameters and graphic plot drawing of Hayman-Jinks method were accomplished. Statistics a and b for all traits was significant. Considering the average degree of dominance, as well as the Hayman graphical plot, dominance effects were observed for grain yield and plant growth period traits over dominance, complete dominance for grain diameter and additive gene action with partial dominance for ASI, grain filling period, grain number in row, grain number in ear, grain row number in ear, ear diameter, grain depth, 1000 grain weight and hektolitr weight traits.

Key words: Maize, genetic parameters, graphic plot.