• REZGAR IDREES SAEED Dept. of Field Crops, College of Agricultural Engineering Sciences, University of Duhok, Kurdistan Region-Iraq
  • MOHAMMED ALI HUSSAIN Dept. of Field Crops, College of Agricultural Engineering Sciences, University of Duhok, Kurdistan Region-Iraq


The study was conducted at the Field Crops Department, College of Agricultural Engineering Sciences, University of Duhok. The aim of the study is to evaluate the performance of hybrids maize producing by partial diallel estimating heterosis, GCA, SCA and some genetic parameters. Eight inbred lines of maize were used to produce 12 hybrids during partial diallel cross in the spring season of 2021. Eight inbred lines and twelve hybrids were planted in the autumn season of 2021 using Randomize Complete Block Design (RCBD) with three replications. The results showed that the mean square for all genotypes was highly significant effects in all studied traits except number of ear per plant was significant. Inbred line (Un44052) was the best parental in number of ear per plant, number of rows per ear and grain yield per plant, while, the hybrid (Dkc-F-59 x Un44052) was superior in ear length, number of grains per row and 300 grain weight. The best hybrid (Dkc-F-59 x Un44052) exhibited significant positive heterosis over mid parent, best parent and local hybrid in most traits (El, NGR-1 and 300 GW), and their values were, (3.08*, 12.25**, 12.08**, 6.41** and 7.96**). The heritability in broad sense was higher than the narrow sense heritability for ear length, number of ears per plant, number of rows per ear, number of grains per row 300 grain weight and grain yield per plant. This indicated that the additive gene action inheritance of these traits. The average degree of dominance is less than one for ear length, number of grain per row and grain yield per plant


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How to Cite
SAEED, R. I., & HUSSAIN, M. A. (2023). HETEROSIS AND SOME GENETIC PARAMETERS FOR YIELD AND ITS COMPONENTS OF MAIZE BY USING PARTIAL DIALLELE . Journal of Duhok University, 26(1), 30-40. https://doi.org/10.26682/ajuod.2023.26.1.4
Agriculture and Veterinary Science