The study of the linear relations between plant characteristics is important to identify traits for indirect selection of plants with large fresh and dry matter production. The objectives of this research were to evaluatethe linear relations amongtraits of jack bean (Canavalia ensiformis) and identify traitsfor indirect selection. In experimental area of 160 m2, 194 plants were collected randomly at 202 days after sowing. The traits plant height, stem diameter, number of nodes, number of leaves, number of pods, fresh matter of pods, fresh matter of aerial part without pods, fresh matter of aerial part, dry matter of pods, dry matter of aerial part without pods and dry matter of aerial part were measured in each plant. The mean and coefficient of variation were calculated for each trait. The linear relations among the traits were studied through correlation and path analyzes. The number of pods showed to have positive linear relation with fresh and dry matter of pods. The number of leaves has positive linear relation with fresh and dry matter of aerial part without pods and with fresh and dry matter of aerial part. It is concluded that the number of pods and leaves can be used for indirect selection of jack bean plants.
Additional key words: Canavalia ensiformis, correlation, path analysis, indirect selection.
ABSTRACT
El estudio de las relaciones lineales entre caracter\uedsticas de las plantas es importante para identificar rasgos que permitan la selecci\uf3n indirecta de aquellas con mayor producci\uf3n de masa fresca y seca. Los objetivos de este trabajo fueron evaluar las relaciones lineales entre caracteres de frijol de cerdo (Canavalia ensiformis) e identificar caracteres para la selecci\uf3n indirecta. En un \ue1rea experimental de 160 m2, a los 202 d\uedas despu\ue9s de la siembra, se seleccionaron, al azar, 194 plantas. En cada planta se midieron los caracteres altura de planta, di\ue1metro del tallo, n\ufamero de nudos, n\ufamero de hojas, n\ufamero de vainas, masa fresca de vainas, masa fresca de parte a\ue9rea sin vainas, masa fresca de parte a\ue9rea, masa seca de vainas, masa seca de parte a\ue9rea sin vainas y masa seca de parte a\ue9rea. Para cada car\ue1cter se calcul\uf3 la media y el coeficiente de variaci\uf3n. Se investig\uf3 la relaci\uf3n lineal entre los caracteres por medio de an\ue1lisis de correlaci\uf3n y de trayectoria (path analysis). El n\ufamero de vainas mostr\uf3 relaci\uf3n lineal positiva con la masa fresca y seca de vainas. El n\ufamero de hojas present\uf3 relaci\uf3n lineal positiva con la masa fresca y seca de la parte a\ue9rea sin vainas y con la masa fresca y seca de la parte a\ue9rea. Se concluye que el n\ufamero de vainas y de hojas se puede utilizar para la selecci\uf3n indirecta del frijol de cerdo.
Palabras clave adicionales: Canavalia ensiformis, correlaci\uf3n, an\ue1lisis de trayectoria, selecci\uf3n indirecta. .<br
