RT info:eu-repo/semantics/article
T1 Morphological Characterization of Opuntia Accessions from Tenerife (Canary Islands, Spain) Using UPOV Descriptors
A1 Rodríguez Rodríguez, Elena María
A1 Díaz Delgado, Goretti L.
A1 Ríos, Domingo
A1 Cano, María Pilar
A1 Lobo, María Gloria
A2 Ingeniería Química y Tecnología Farmacéutica
A2 Grupo Integrado de Ciencia y Tecnología de los Alimentos
Instituto Canario de Investigaciones Agrarias (ICIA)
K1 cactus pear
K1 cladodes
K1 flower
K1 fruit
K1 spines
K1 multivariate analysis
AB Twenty Opuntia accessions from Tenerife (Canary Islands, Spain) were classified according to 52 quantitative and qualitative descriptors, including the traits of the cladodes, flowers, fruits, and spines, as described by the International Union for the Protection of New Varieties of Plants (UPOV) guidelines. A database composed of 20 accessions and 52 traits was used to performa cluster analysis based on the Euclidian distance and Ward’s method and a canonical discriminant analysis. In terms of the analyzed characteristics, cactus pears with orange flesh showed less variability than cactus pears with white or purple flesh. Good classifications according to fruit flesh color were obtained using discriminant analysis. As a result of the cluster analysis, Opuntia plant accessions with white, orange, or purple-fleshed fruits were classified into four homogeneous groups according to the cubic clustering criteria. This study proves that it was possible to make apreliminary classification of Opuntia varieties from the Canary Islands based on a few main morphological characteristics. To improve the classification, a molecular analysis of the different Opuntia plants is necessary.
YR 2024
FD 2024
LK http://riull.ull.es/xmlui/handle/915/39771
UL http://riull.ull.es/xmlui/handle/915/39771
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 22-nov-2024