Climate risk zoning for gladiolus in the state of Rio Grande do Sul, Brazil

Authors

  • Lilian Osmari Uhlmann Universidade Federal de Santa Maria, Departamento de Fitotecnia, Avenida Roraima, no 1.000, Cidade Universitária, Camobi, CEP 97105-900 Santa Maria, RS.
  • Nereu Augusto Streck Universidade Federal de Santa Maria, Departamento de Fitotecnia, Avenida Roraima, no 1.000, Cidade Universitária, Camobi, CEP 97105-900 Santa Maria, RS.
  • Camila Coelho Becker Universidade Federal de Santa Maria, Departamento de Fitotecnia, Avenida Roraima, no 1.000, Cidade Universitária, Camobi, CEP 97105-900 Santa Maria, RS.
  • Regina Tomiozzo Universidade Federal de Santa Maria, Departamento de Fitotecnia, Avenida Roraima, no 1.000, Cidade Universitária, Camobi, CEP 97105-900 Santa Maria, RS.
  • Natalia Teixeira Schwab Universidade Federal de Santa Maria, Departamento de Fitotecnia, Avenida Roraima, no 1.000, Cidade Universitária, Camobi, CEP 97105-900 Santa Maria, RS.
  • Vithória Morena Ortiz Universidade Federal de Santa Maria, Departamento de Fitotecnia, Avenida Roraima, no 1.000, Cidade Universitária, Camobi, CEP 97105-900 Santa Maria, RS.

DOI:

https://doi.org/10.1590/S1678-3921.pab2020.v55.26678

Keywords:

Gladiolus x grandiflorus, extreme temperatures, PhenoGlad, planting period, planting schedule

Abstract

The objective of this work was to develop a climate risk zoning for the gladiolus (Gladiolus x grandiflorus) crop in the 497 municipalities of the state of Rio Grande do Sul, Brazil. The PhenoGlad model was used to simulate crop development and the occurrence of damages. The model was run for four developmental cycles of gladiolus over 34 years and in 23 locations in the state. The probabilities of 10, 20, and 30% damages due to low and high temperatures were used to define periods suitable for planting. Rio Grande do Sul is adequate for growing gladiolus during most of the year. In the coldest areas of the state, the inadequate planting dates are from March until mid-May due to frost damage. In the hottest regions, the inadequate planting dates are greater from October to January due to heat damage. Because it is stricter, the 10% level of damage is considered more appropriate to define the periods recommended for planting.

 

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Published

2020-04-29

How to Cite

Uhlmann, L. O., Streck, N. A., Becker, C. C., Tomiozzo, R., Schwab, N. T., & Ortiz, V. M. (2020). Climate risk zoning for gladiolus in the state of Rio Grande do Sul, Brazil. Pesquisa Agropecuaria Brasileira, 55(X), e01094. https://doi.org/10.1590/S1678-3921.pab2020.v55.26678