Research Article Open Access

Phenotypic Evaluation of Heritability, Agro-Morphological and Yield Characters of Sixteen Amaranthus Linn. Genotypes

Onuoha Samuel Ogechi1 and Olawuyi Odunayo Joseph1
  • 1 Genetics and Molecular Biology Unit, Department of Botany, University of Ibadan, Ibadan, Nigeria

Abstract

The field experiment was conducted to evaluate the heritability, genetic variance, agro-morphological and yield characters of Sixteen Amaranthus genotypes. The seeds of the sixteen (16) genotypes of Amaranthus evaluated in this study were; NG/AA/MAY/09/027, NG/AA/03/11/010, NG/AO/11/08/042, NG/AO/11/08/039, NG/SA/DEC/07/0423, NG/SA/DEC/07/0412, NGB01667, NGB01601, NGB01283, NGB01271, NGB01276, NGB01259, NGB01644, NGB01234, NGB01613 and NGB01662. The results showed that there were variability performances in growth and yield characters of Amaranthus genotypes. NG/AA/MAY/09/027 and NG/AO/11/08/039 had the best growth characters while NG/AO/11/08/042 had best yield performance compared to other genotypes. The stem length recorded the best heritability estimate of 95.5% while weight of dry leaf, weight of fresh and dry inflorescent had least (47.7%). The plant height had a positive significant correlation with number of leaf (r = 0.53), leaf width (r = 0.57), number of branches (r = 0.56) but a strong positive correlation with stem length (r = 0.97), stem girth (r = 0.75), number of inflorescent (r = 0.68), inflorescent length (0.64) and inflorescent width (r = 0.72). Prin. 1 accounted for the highest variation in growth and yield characters with proportion of 0.3376 and eigen value of 4.7269, while Prin. 14 was the least with proportion of 0.0003 and eigen value of 0.0038. Therefore, there could be genetic improvement of NG/AA/MAY/09/027 and NG/AO/11/08/039 genotypes for further improvement of Amaranthus.

American Journal of Agricultural and Biological Sciences
Volume 12 No. 3, 2017, 113-122

DOI: https://doi.org/10.3844/ajabssp.2017.113.122

Submitted On: 17 February 2017 Published On: 3 August 2017

How to Cite: Ogechi, O. S. & Joseph, O. O. (2017). Phenotypic Evaluation of Heritability, Agro-Morphological and Yield Characters of Sixteen Amaranthus Linn. Genotypes. American Journal of Agricultural and Biological Sciences, 12(3), 113-122. https://doi.org/10.3844/ajabssp.2017.113.122

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Keywords

  • Amaranthus
  • Heritability
  • Agro-Morphological
  • Variance