Multiple regression analysis for evaluation of the effect of insect populations on upland rice yield

Authors

  • Evane Ferreira
  • José Francisco da Silva Martins
  • Sinval Silveira Neto
  • José Ruy Porto de Carvalho

DOI:

https://doi.org/10.1590/S1678-3921.pab1982.v17.15848

Keywords:

economic entomology, losses and benefits estimations

Abstract

The influence of insects on rice yield was studied using multiple regression step wise procedure. The equations with maximum values of coefficient of determinations (R2) were selected. The regression equations established for 1977/78. 1978/79, 1979/80 indicated that the insect populations were responsible for 23.6, 28.4 and 34.6% grain yield loss, respectively. The results further indicated that the presence of some other insects showed positive effect on yield.

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How to Cite

Ferreira, E., Martins, J. F. da S., Neto, S. S., & Carvalho, J. R. P. de. (2014). Multiple regression analysis for evaluation of the effect of insect populations on upland rice yield. Pesquisa Agropecuaria Brasileira, 17(5), 671–675. https://doi.org/10.1590/S1678-3921.pab1982.v17.15848

Issue

v.17, n.5, maio 1982

Section

ENTOMOLOGY