African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 688

Full Length Research Paper

Clonal trial of five genotypes of “camu-camu”, Myrciaria dubia (h.b.k) mc. Vaugh, in non-flooded area

Sergio Pinedo1, Sixto Iman1, Mario Pinedo2*, Armando Vasquez3 and Herman Collazos3
1Subdivision of Research in Genetic Resources and Biotechnology, Agricultural Experimental Station “San Roque”, Agrarian Innovation National Institute (INIA), Northern Samar, Philippines. 2Peruvian Amazon Research Institute (IIAP)- Probosques, Peru. 3Faculty of Agronomy, Peruvian Amazon National University (UNAP), Iquitos- Perú.
Email: [email protected]

  • Article Number - 3489AB92798
  • Vol.5(1), pp. 40-46, January 2011
  •  Accepted: 11 November 2010
  •  Published: 31 January 2011

Abstract

The objective of this research was to evaluate fruit yield, other agronomic characteristics and content of ascorbic acid (aa) of five promissory genotypes of “camu-camu” in non-flooded area of the experimental field “El Dorado”. The plantation has been established for 4 years and is located in 03° 56’ 50’’S, 73° 25’ 13’’W and 118 a.s.l. altitude, which is part of INIA-EEA“San Roque”4. The clones evaluated were MD-013, MD-014, MD-015, MD-017 and MD-020 and they stood out in the previous analysis in the national camu-camu germplasm collection of INIA. The experiment was established with a completely randomized block statistical design (CRBD) with five treatments and four replications, and each experimental unit consisted of nine plants, with a distance of 3 x 3 m. During the reproductive phenology which was 9 months long, nine variables were evaluated: Leaf length (cm), leaf width (cm), petiole length (cm), number of basal branches, basal branch diameter (cm), number of fruits, fruits weight (g), fruits yield (kg) and ascorbic acid (mg/100 g). As a result, “petiole length” was different statistically (F = 3.96, p = 0.028). The heritability was low for all the variables: “leaf length” (h2 = 0.13), “leaf width” (h2 = 0.06), “basal branches diameter” (h2 = 0.004), “number of fruits per plant” (h2 = 0.17), “ascorbic acid content” (h2 = 0.002), “petiole length” (h2 = 0.43), “number of basal branches” (h2 = 0.33), “weight of fruits per plant” (h2 = 0.29) and “fruits yield” (h2 = 0.26). However, fruit yield showed a range of 2.0 to 2.6 kg / plant (2200 to 2800 kg / ha).

 

Key words: Ascorbic acid, “camu-camu”, heritability, Myrciaria dubia, yield.

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