Iranian Journal of Field Crop Science

Iranian Journal of Field Crop Science

Genetic variability, heritability, and interrelationships between seed yield and related components of chickpea genotypes under dryland conditions

Document Type : Research Paper

Author
Homayoun Kanouni
Research associate, Seed and Plant Improvement Dept., Kurdistan Agricultural and Natural Resources, Research and Education Center, AREEO, Sanandaj, Iran
10.22059/ijfcs.2016.63596
Abstract
The present investigation was carried out to study the variability, heritability, correlations and path coefficient analysis in 14 Kabuli type chickpea genotypes during three successive cropping seasons (2011-14), in a randomized complete block design with four replications. Combined analysis suggested significant differences between genotypes for most of characteristics. The highest phenotypic coefficients of variation (PCV) were obtained for seed yield, number of pods per plant, and number of seeds per plant, respectively. Furthermore, the highest genotypic coefficients of variation (GCV) were determined for seed yield, biomass yield and plant height, respectively. These results revealed that these traits could be improved via selection. High heritability coupled with high genetic advance as percentage of mean was observed for seed yield, number of seeds per pod and 100 seeds weight showed that phenotypic selection for these traits might be effective. Seed yield had positive and significant correlations with biomass yield and number of primary branches, thus selection for these traits could improve seed yield in chickpea. Number of seeds per plant, followed by number of primary branches, 100 seeds weight and biomass yield had positive high direct effects on seed yield. Meanwhile, number of primary branches, number of secondary branches and number of days to flowering could be used as an indirect selection criterion for higher seed yield.
Keywords
Chickpea
correlations
genetic gain
heritability
Path analysis
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Iranian Journal of Field Crop Science
Volume 47, Issue 1 - Serial Number 1
Spring 2016
Pages 155-163

  • Receive Date 30 September 2015
  • Revise Date 31 October 2015
  • Accept Date 04 November 2015
  • Publish Date 21 May 2016