New method of estimation of pre-harvest yield in graniferous sorghum cultivation

Authors

  • C. Domínguez National University of Córdoba. Faculty of Agricultural Sciences. Córdoba, Argentina.
  • R. E. Rodríguez National University of Córdoba. Faculty of Agricultural Sciences. Córdoba, Argentina.
  • G. Giambastiani National University of Córdoba. Faculty of Agricultural Sciences. Córdoba, Argentina.

Keywords:

productivity, yield prediction, leaf morphology

Abstract

In the absence of a practical and precise method for estimating pre-harvest yield of graniferous sorghum, it was proposed that such a procedure be developed. Samples of pan leaves from 23 graniferous sorghum hybrids were analyzed in which the correlations between different morphological variables and the weight of the grains contained in them were studied. The morphological variables evaluated were the diameter of the peduncle (DPP), the length (LP) and the width (AP) of the panicle. It was concluded that by means of a simple linear regression and using the DPP or the average AP of a sample of at least 50 panojas as the regressor variable, an accurate estimation of the weight of the grains in the panicle can be made.

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References

Di Rienzo J.A., Casanoves F., Balzarini M.G., Gonzalez L., Tablada M., Robledo C.W. InfoStat versión 2017. Grupo InfoStat, FCA, Universidad Nacional de Córdoba, Argentina. URL http://www.infostat.com.ar

Edmeades G.O., Lafitte H.R. 1993 Defoliation and plant density effects on maize selected for reduced plant height. Agron. J. 85: 850-857.

Pereyra, V.R., Farizo, C.L. 1979. Estimación del rendimiento de girasol utilizando el diámetro de los capítulos. En: Reunión de Actualización en Producción de Girasol, INTA, Balcarce, Argentina, pp. 6-12.

Published

2019-07-31

Issue

Section

Reports of results/advances