Estimating chlorophyll concentration and its relationship with crude protein concentration in three species of Urochloa in the Piedemonte Llanero, Colombia

Authors

  • Álvaro Rincón Castillo Red de Ganadería y Especies Menores, Corporación Colombiana de Investigación Agropecuaria (Agrosavia), C.I. La Libertad, Villavicencio, Meta, Colombia.
  • Mauricio Álvarez de León Red de Cultivos Transitorios, Agrosavia, C.I. La Libertad, Villavicencio, Meta, Colombia.
  • Oscar Pardo Barbosa Red de Ganadería y Especies Menores, Corporación Colombiana de Investigación Agropecuaria (Agrosavia), C.I. La Libertad, Villavicencio, Meta, Colombia.
  • Mary Alejandra Amaya Red de Ganadería y Especies Menores, Corporación Colombiana de Investigación Agropecuaria (Agrosavia), C.I. La Libertad, Villavicencio, Meta, Colombia.
  • Raúl Alejandro Díaz Giraldo Red de Ganadería y Especies Menores, Corporación Colombiana de Investigación Agropecuaria (Agrosavia), C.I. La Libertad, Villavicencio, Meta, Colombia.

DOI:

https://doi.org/10.17138/tgft(7)533-537
Abstract Authors How to Cite

Abstract

To establish the relationship between the intensity of the green color of leaves and their crude protein (CP) concentration in Urochloa brizantha, U. decumbens and U. humidicola pastures in the Piedemonte Llanero, Colombia, the leaf chlorophyll concentration was measured (in SPAD units), classified based on the Munsell color chart and compared with the leaf CP concentration determined by the Kjeldahl method. The regression analysis between chlorophyll and CP concentrations showed coefficients of determination (r2) between 0.76 and 0.88. While collection of additional data will allow colorimetric charts based on the Munsell color chart to be developed which can be used to predict CP levels for each of these species, the relationships generated can be used to develop recommendations to assist farmers in the region in their decisions on use and fertilizing of these pastures.

Author Biography

Oscar Pardo Barbosa, Red de Ganadería y Especies Menores, Corporación Colombiana de Investigación Agropecuaria (Agrosavia), C.I. La Libertad, Villavicencio, Meta, Colombia.

Zootecnista, MSc en produccion Animal con enfasis en Nutricion de Rumiantes, Investigadors de CORPOICA (AGROSAVIA), por mas de 25 años, Especialista en pastos tropicales de suelos acidos, profesor de catedra de maestria en la universidad de lso Llanos y responsable tecnico del laboratorio de Nutricion Animal

How to Cite

Rincón Castillo, Álvaro, Álvarez de León, M., Pardo Barbosa, O., Amaya, M. A., & Díaz Giraldo, R. A. (2019). Estimating chlorophyll concentration and its relationship with crude protein concentration in three species of Urochloa in the Piedemonte Llanero, Colombia. Tropical Grasslands-Forrajes Tropicales, 7(5), 533–537. https://doi.org/10.17138/tgft(7)533-537

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Published

2019-11-30

Issue

Vol. 7 No. 5: November 2019

Section

Short Communications