African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 757

Full Length Research Paper

Correlation and path coefficient analysis of seed yield and yield components in lentil (Lens culinaris Medik.) genotype in Ethiopia

Fikru Mekonnen*
  • Fikru Mekonnen*
  • School of Plant Sciences, College of Agriculture and Environmental Sciences, Haramaya University, P.O. Box, 138, Dire Dawa, Ethiopia.
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Firew Mekbib
  • Firew Mekbib
  • School of Plant Sciences, College of Agriculture and Environmental Sciences, Haramaya University, P.O. Box, 138, Dire Dawa, Ethiopia.
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Shiv Kumar
  • Shiv Kumar
  • International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco.
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Seid Ahmed
  • Seid Ahmed
  • International Center for Agricultural Research in the Dry Areas (ICARDA), P O Box 5689, Addis Ababa, Ethiopia.
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T. R. Sharma
  • T. R. Sharma
  • Department of Agricultural Biotechnology, Chaudhary Sarwan Kumar Himachal Pradesh Agricultural University, Palampur 176 062, India.
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  •  Received: 26 March 2014
  •  Accepted: 12 November 2014
  •  Published: 30 November 2014

Abstract

Knowledge of correlation among different traits and further partitioning of the correlation coefficients into direct and indirect effects on yield is one of the approaches to understand the nature and extent of the relationship among characters. The objective of this study was to determine the degree of associations between seed yield and yield components of lentil. In this study, 228 genotypes from diversified origin were considered. The experiment was conducted at three locations using randomized complete block design and augmented design. Significant strong positive phenotypic and genotype correlations were observed between seed yield and biomass, seed weight per plant, number of seed per plant and number of pods per plant. These four yield-contributing characters had also strong positive correlations with each other. The path coefficient analysis is in harmony, with the phenotypic and genotypic correlation, that is, seed weight per plant, followed by number of pods per plant, biomass yield and 100 seed weight have a considerable positive direct effect on lentil seed yield. However, days to 50% flowering, days to 90% maturity and rust disease severity score had negative phenotypic correlation and negative direct effect on seed yield.

 

Key words: Genotype correlation coefficient, lentil, path analysis, phenotype correlation coefficient.