Sweet orange selections’ sensitivity to water deficit

Authors

  • Yuri Caires Ramos Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, SP
  • Francisco de Assis Alves Mourão Filho Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, SP
  • Eduardo Sanches Stuchi Embrapa Mandioca e Fruticultura, Cruz das Almas, BA
  • Paulo Cesar Sentelhas Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, SP
  • André Luiz Fadel Universidade de São Paulo, Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, SP

DOI:

https://doi.org/10.1590/S1678-3921.pab2016.v51.22268

Keywords:

Citrus sinensis, agrometeorological model, yield loss

Abstract

The objective of this work was to evaluate the water‑deficit sensitivity of 17 sweet orange selections budded on 'Sunki' mandarin along five growing seasons. An agrometeorological model related to orange yield loss caused by water deficit was used, and the relationship between the estimated and observed values was determined. Sensitivity to water deficit of selections can be classified as high, medium, and low, and this ranking is unprecedented for Brazilian conditions. Sensitivity to water deficit was ranked as high for the sweet orange selections 'Pera Milton Teixeira', 'Pera IAC', 'IAC 2000', Pera 2, 'IAC 420 Seleta Rio', and Pera 3, and as low for the selections 'Bidwells Bar', 'IPR Jaffa', 'Torregrosa', and 'Sanguínea'.

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Published

2016-02-29

How to Cite

Ramos, Y. C., Mourão Filho, F. de A. A., Stuchi, E. S., Sentelhas, P. C., & Fadel, A. L. (2016). Sweet orange selections’ sensitivity to water deficit. Pesquisa Agropecuaria Brasileira, 51(1), 86–89. https://doi.org/10.1590/S1678-3921.pab2016.v51.22268

Issue

v.51, n.1, jan. 2016

Section

SCIENTIFIC NOTES