Caracterización fenotípica de accesiones de especies de Rubus L. de los municipios de Pamplona y Chitagá, región Nororiental de Colombia

Giovani Orlando Cancino-Escalante,Enrique Quevedo-García,Claudia Díaz-Carvajal,Luis Roberto Sánchez-Montaño

doi:10.11144/javeriana.sc16-3.pcor

Giovani Orlando Cancino-Escalante, Enrique Quevedo-García + Show 2 more

Open Access

https://doi.org/10.11144/javeriana.sc16-3.pcor

Copy DOI

Journal: Universitas Scientiarum	Publication Date: Nov 1, 2011
Citations: 15	License type: cc-by

Affiliation: University of Pamplona

Abstract

Objective. To identify the cultivated and wild species of Rubus in 53 farms with commercial plantations of Rubus glaucus Benth, owned by four blackberry grower associations in the towns of Pamplona and Chitagá, (Norte de Santander, Colombia). Materials and methods. Three to five specimens were collected from each farm and along the roadside. Plants aged 9 to 12 months since their plantation in the commercial farms and wild materials with characteristics of Rubus were selected. Twenty two descriptors (fourteen quantitative and eight qualitative) were assessed. We considered the seventh and eighth branch buds both male and female (with five repetitions) and fruits and flowers of each material. Principal component analysis was done with the fourteen quantitative variables, to identify the descriptors that most contribute to the morphological differentiation of accessions. A conglomerate analysis was used for grouping accessions according to their similarity and dissimilarity. Results. Among the 147 accessions analyzed from the different farms, our study determined the presence of 6 different taxa: R. glaucus Benth (with and without spines), R. alpinus Macfad, R. adenotrichos Schltdl, R. rosifolius Sm., R. bogotensis Kunth and R. floribundus Kunth Conclusions. The descriptors that differentiated the species and discriminated them by groups by providing 77% of the information with the use of principal component analysis, were: length and width of central and lateral leaflets, length of flower and leaf structures, apex shape and number of secondary veins. Key words: Rubus glaucus Benth, identification, taxa, descriptors, principal component analysis, conglomerate analysis

Highlights

Caracterização fenotípica dos acessos de espécies de Rubus L. dos municípios de Pamplona e Chitagá, nordeste da Colômbia
Reconhecer as espécies cultivadas e silvestres de Rubus em 53 fazendas com plantações comerciais de Rubus glaucus Benth, pertencentes a quatro associações de produtores de amora nos municípios de Pamplona e Chitagá (Norte de Santander, Colômbia)
Planta escandente hasta 4 m, ramosa, tallo anguloso, con aristas prominentes, con pelos glandulares de diferentes tamaños, estrigosos, rectos, con aguijones pequeños, 4-5 por entrenudo; estípulas, una a cada lado en la base del peciolo, 7 mm longitud, lineares lanceoladas; peciolos rectos, delgados, 4-5.2 cm; con 5-8 aguijones curvos, indumento estrigoso-glandularpeciolulos de los foliolos laterales cortos, 4-5 mm delgados del central 2.4–2.5 cm; láminas ovadooblongas, base cordada, ápice atenuado, margen dentada; Rubus rosifolius Sm

Summary

Introduction

Caracterização fenotípica dos acessos de espécies de Rubus L. dos municípios de Pamplona e Chitagá, nordeste da Colômbia. El presente estudio de tipo descriptivo planteó como objetivo, reconocer las especies silvestres y cultivadas de Rubus en 53 fincas comerciales de R. glaucus de cuatro asociaciones de cultivadores de mora en la Provincia de Pamplona.

Results

Conclusion