Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia

During 2014, in the province of Pamplona, Colombia, a study on the peach variety Jarillo was carried out in order to classify a series of morphometric variables in this crop, grown at three different altitudes (Pamplona, 2,170 m a.s.l., Chitaga, 1,870 m a.s.l., and Pamplonita, 1,670 m a.s.l). The co...

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Main Authors: Quevedo-García, Enrique, Darghan, Aquiles Enrique, Fischer, Gerhard
Format: Online
Language:spa
Published: Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2017
Subjects:
Online Access:https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/6140
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author Quevedo-García, Enrique
Darghan, Aquiles Enrique
Fischer, Gerhard
author_facet Quevedo-García, Enrique
Darghan, Aquiles Enrique
Fischer, Gerhard
author_sort Quevedo-García, Enrique
collection OJS
description During 2014, in the province of Pamplona, Colombia, a study on the peach variety Jarillo was carried out in order to classify a series of morphometric variables in this crop, grown at three different altitudes (Pamplona, 2,170 m a.s.l., Chitaga, 1,870 m a.s.l., and Pamplonita, 1,670 m a.s.l). The conditional Latin hypercube sampling approach was used to select samples of the trees. In the leaves, the width was measured with the length of the limbs and the limbus area using the software ImageJ. In the fruits, the longitudinal r on the equatorial diameter and dry weight were measured. The linear discriminant analysis technique was applied, which was complemented with boxes diagram by farm with the values of the discriminant function for the samples of the different groups and ended with the scatter plot of the two best discriminant functions. This classification suggested different agronomic management plans for Pamplonita and Chitagá, especially for the harvest that involved the dry weight of the fruits. There is a common area between Pamplona and Pamplonita, which can be attributed to the fact that both are in the Catatumbo basin. The values of length and width of the limbus and limbus area were highly discriminating characteristics in this study and were susceptible to change because of environmental factors. The study concluded that the farms Chitagá and Pamplonita were clearly discriminated according to the measured variables, reaching discriminant function with 89.3% separation in the variables.
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spelling oai:oai.revistas.uptc.edu.co:article-61402020-08-03T23:59:12Z Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia Clasificación de variables morfológicas del duraznero (Prunus persica L. Batsch) ‘Jarillo’ en la montaña santandereana Colombiana mediante análisis discriminante lineal Quevedo-García, Enrique Darghan, Aquiles Enrique Fischer, Gerhard morfometría muestreo hipercubo latino condicional clasificación estadística During 2014, in the province of Pamplona, Colombia, a study on the peach variety Jarillo was carried out in order to classify a series of morphometric variables in this crop, grown at three different altitudes (Pamplona, 2,170 m a.s.l., Chitaga, 1,870 m a.s.l., and Pamplonita, 1,670 m a.s.l). The conditional Latin hypercube sampling approach was used to select samples of the trees. In the leaves, the width was measured with the length of the limbs and the limbus area using the software ImageJ. In the fruits, the longitudinal r on the equatorial diameter and dry weight were measured. The linear discriminant analysis technique was applied, which was complemented with boxes diagram by farm with the values of the discriminant function for the samples of the different groups and ended with the scatter plot of the two best discriminant functions. This classification suggested different agronomic management plans for Pamplonita and Chitagá, especially for the harvest that involved the dry weight of the fruits. There is a common area between Pamplona and Pamplonita, which can be attributed to the fact that both are in the Catatumbo basin. The values of length and width of the limbus and limbus area were highly discriminating characteristics in this study and were susceptible to change because of environmental factors. The study concluded that the farms Chitagá and Pamplonita were clearly discriminated according to the measured variables, reaching discriminant function with 89.3% separation in the variables. Durante el 2014 en la provincia de Pamplona, Colombia, se realizó un estudio sobre la variedad de duraznero Jarillo, con el fin de clasificar una serie de variables morfométricas distribuidos en tres fincas de diferenter altitud (Pamplona, 2.170 msnm; Chitagá, 1.870 msnm y Pamplonita, 1.670 msnm). Para el muestreo de árboles se utilizó el hipercubo latino condicional. En las hojas se midió el ancho por la longitud de limbos y el área del limbo usando el software ImageJ. En los frutos se midió el diámetro longitudinal sobre ecuatorial y los pesos secos. Se aplicó la técnica del análisis discriminante lineal, el cual se complementó con el diagrama de cajas por finca con los valores de la función discriminante para las muestras de diferentes grupos y se finalizó con la gráfica de dispersión de las dos mejores funciones discriminantes. Esta clasificación sugiere un manejo agronómico diferenciado entre Pamplonita y Chitagá, sobre todo en la cosecha, pues esta involucra el peso seco de los frutos. Existe un área común entre Pamplona y Pamplonita, lo cual puede atribuirse a que ambas se encuentran en la cuenca del Catatumbo. Los valores de largo por ancho del limbo y área del limbo fueron caracteres fuertemente discriminantes en este estudio, son susceptibles de variar debido a factores ambientales. El estudio concluyó que las fincas Chitagá y Pamplonita se discriminan claramente en lo que respecta a las variables medidas, alcanzando la función discriminante un 89,3% de separación en las variables. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2017-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/6140 10.17584/rcch.2017v11i1.6140 Revista Colombiana de Ciencias Hortícolas; Vol. 11 No. 1 (2017); 39-47 Revista Colombiana de Ciencias Hortícolas; Vol. 11 Núm. 1 (2017); 39-47 Revista Colombiana de Ciencias Hortícolas; Vol. 11 No 1 (2017); 39-47 Revista Colombiana de Ciencias Hortícolas; V. 11 N. 1 (2017); 39-47 Revista Colombiana de Ciencias Hortícolas; v. 11 n. 1 (2017); 39-47 2422-3719 2011-2173 spa https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/6140/pdf
spellingShingle morfometría
muestreo hipercubo latino condicional
clasificación estadística
Quevedo-García, Enrique
Darghan, Aquiles Enrique
Fischer, Gerhard
Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia
title Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia
title_alt Clasificación de variables morfológicas del duraznero (Prunus persica L. Batsch) ‘Jarillo’ en la montaña santandereana Colombiana mediante análisis discriminante lineal
title_full Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia
title_fullStr Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia
title_full_unstemmed Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia
title_short Classification with linear discriminant analysis of morphological variables in peach (Prunus persica L. Batsch) ‘Jarillo’ in the Santandereana Mountains, Colombia
title_sort classification with linear discriminant analysis of morphological variables in peach prunus persica l batsch jarillo in the santandereana mountains colombia
topic morfometría
muestreo hipercubo latino condicional
clasificación estadística
topic_facet morfometría
muestreo hipercubo latino condicional
clasificación estadística
url https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/6140
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