Title
Selection of myrciaria dubia clones under conditions of the savanna/ forest transition of roraima through multivariate analysis
Other title
Selección de clones de Myrciaria dubia en condiciones de transición sabana/bosque en Roraima mediante análisis multivariado
Date Issued
01 January 2022
Access level
open access
Resource Type
journal article
Author(s)
Sakazaki R.T.
Chagas E.A.
Chagas P.C.
De Araujo M.D.C.R.
Neto J.L.L.M.
Grigio M.L.
Zborowski L.G.C.
Da Silva Siqueira R.H.
Amaya J.Z.E.
Publisher(s)
Universidad Nacional de Colombia
Abstract
Camu-camu (Myrciaria dubia), a fruit from the Amazon region, has received attention due to its high content of antioxidant compounds such as ascorbic acid and polyphenols. This study’s objective was to select camu-camu clones according to their morphological characteristics using multivariate analyses. We evaluated 56 camu-camu clones distributed in three blocks with two plants per experimental plot. The variables measured were plant height (H), number of basal branches (NBB), number of terminal buds (NTB), basal stem diameter (BSD), chlorophylls a (Chl a) and b (Chl b), and total chlorophyll (Chl a + b). Principal component (PCA) and multivariate clustering analyses were performed using the average linkage mean and Mahalanobis distance algorithms. After 24 months, results showed that the characteristics that least contributed to clone selection was NBB. The plant height (H), number of terminal buds (NTB), basal stem diameter (BSD), chlorophylls a (Chl a) and b (Chl b), and total chlorophyll (Chl a + b) had the most positive contribution towards the initial selection of camu-camu clones at two years of age. The 22 camu-camu clones showed the highest rate of vegetative development or vegetative quality index (VQI) in the transitional savanna/forest area of the northern Amazon, Brazil, after two years of transplanting.
Start page
67
End page
75
Volume
40
Issue
1
Language
English
OCDE Knowledge area
Agronomía
Ecología
Ciencias de las plantas, Botánica
Subjects
Scopus EID
2-s2.0-85138204798
Source
Agronomia Colombiana
ISSN of the container
0120-9965
Sponsor(s)
We thank the graduate program in Agronomy-POSAGRO at UFRR and the Brazilian Agricultural Research Corporation (EMBRAPA) for the logistics for research development, and the Coordination for the Improvement of Higher Education Personnel (CAPES) for the scholarship of the first author.
Sources of information:
Directorio de Producción Científica
Scopus