African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 718

Full Length Research Paper

Variability, heritability and genetic advance in upland cotton (Gossypium hirsutum L.)

R. Dhivya
  • R. Dhivya
  • Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641 003, India.
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P. Amalabalu
  • P. Amalabalu
  • Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641 003, India.
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R. Pushpa
  • R. Pushpa
  • Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641 003, India.
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D. Kavithamani
  • D. Kavithamani
  • Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641 003, India.
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  •  Received: 27 August 2013
  •  Accepted: 23 September 2013
  •  Published: 31 January 2014

Abstract

The analysis of variance study indicated the presence of significant difference among all the traits in Gossypium hirsutum accessions. The highest phenotypic coefficient of variation (GCV) and genotypic coefficient of variation (GCV) were recorded by seed index, plant height, lint index and boll weight. Genotypic co-efficient of variation had a similar trend as PCV. High heritability along with high genetic advance was observed in traits viz., number of sympodia per plant, single plant yields, seed index and micronaire value. The combinations of high heritability with high genetic advance will provide a clear base on the reliability of that particular character in selection of variable entries. Based on per se performance, the accessions MCU5, TCH1715, TCH1716 and G cot 16 were identified as potential donors for single plant yield (g), number of bolls per plant, 2.5% span length (mm) and bundle strength (g/tex).  So these accessions may be utilized for crossing programme to improve a particular character in crop improvement.

Key words: Genetic variability, heritability, genetic advance, upland cotton.