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Economic Botany

, Volume 49, Issue 2, pp 153–161 | Cite as

Hybridization betweenPsidium guajava andP. guineense (Myrtaceae)

  • Leslie R. Landrum
  • W. Dennis Clark
  • William P. Sharp
  • Jeff Brendecke
Article

Abstract

Psidium guajava andP. guineense are characterized, illustrated and contrasted. Population samples ofPsidium guajava andP. guineense and apparent hybrids were collected from four localities: two in Mexico, one in Honduras, and one in Argentina. Seven morphological characters, one micromorphological (stomatal density), and one chemical character (presence or absence of myricetin) that distinguish the parent species were found to be useful in the evaluation of specimens and population variation. Results were consistent with the hypothesis that hybridization occurs between these species, but in three localities it may not go beyond Fl ’s. Back crossing between hybrids andP. guajava was not detected at any locality.

Key Words

Psidium guajava Psidium guineense guava hybridization 

Hibridación entrePsidium guajava L. y Psidium guineense Sw. (Myrtaceae)

Résumé

Se recolectaron muestras de poblaciones dePsidium guajava, P. guineense y posibles híbridos en cuatro localidades: dos en México, una en Honduras, una en Argentina. Se encontraron útiles en la evaluación de especímenes y variación de poblaciones siete características morfológicas, una micromorfológica (densidad de stomata), y una química (presencia o ausencia de myricetin) que distinguen las especies padres. Los resultados indican que hibridación ocurre entre las especies, pero en tres localidades es posible que hay solamente Fl ’s. No se detectaron cruces entre híbridos yP. guajava en ninguna localidad.

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Copyright information

© New York Botanical Garden, Bronx, NY 10458 U.S.A 1995

Authors and Affiliations

  • Leslie R. Landrum
    • 1
  • W. Dennis Clark
    • 1
  • William P. Sharp
    • 1
  • Jeff Brendecke
    • 1
  1. 1.Department of BotanyArizona State UniversityTempeUSA

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