African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12254

Full Length Research Paper

Morphological diversity in oleaginous watermelon (Citrullus mucosospermus) from the Nangui Abrogoua University germplasm collection

Ahou A. Gbotto
  • Ahou A. Gbotto
  • Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire.
  • Google Scholar
Kouamé K. Koffi
  • Kouamé K. Koffi
  • Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire.
  • Google Scholar
Nandy D. Fouha Bi
  • Nandy D. Fouha Bi
  • Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire.
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Serge T. Doubi Bi
  • Serge T. Doubi Bi
  • Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire.
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Hippolyte H. Tro
  • Hippolyte H. Tro
  • Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire.
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Jean-Pierre Baudoin
  • Jean-Pierre Baudoin
  • Unité de Phytotechnie Tropicale et d’Horticulture, Faculté universitaire des Sciences agronomiques de Gembloux, Passage des Déportés 2, B-5030 Gembloux, Belgium.
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Irié A. Zoro Bi
  • Irié A. Zoro Bi
  • Université Nangui Abrogoua, UFR des Sciences de la Nature, 02 BP 801 Abidjan 02, Côte d’Ivoire.
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  •  Accepted: 11 April 2016
  •  Published: 25 May 2016

Abstract

A hundred and seventy-one oleaginous watermelon accessions either collected from different countries or obtained from gene banks were evaluated and compared based on 11 quantitative morphological traits. Principal component analysis on 11 traits revealed 81.19% of the total variability and pointed out variations among accessions, mainly on the basis of fruit size and weight. The dendrogram and factorial discriminant analysis clustered the accessions in four groups. The multivariate analysis of variance showed a significant difference between the four groups and accessions of the group 2 had higher agronomic performances. The confusion matrix gave the details about accessions assignment and pointed out that breeders must have recourse to several multivariate analyses to have better agromorphological classification of accessions. The traits related to fruit size and weight were the most accession distinctive. Consequently, fruit morphological traits could be used for accession identification during collecting missions.

 

Key words: Citrullus mucosospermus, morphological characterization, multivariate analysis, oleaginous cucurbit.