Leaf water potential of papaya subjected to irrigation depths under semi-arid climate

Authors

  • Willker Paulo Oliveira Viana
  • Alexsandro dos Santos Brito
  • Elcivan Pereira Oliveira
  • Cláudio Roberto Meira de Oliveira
  • Leandro Santos Peixouto

Abstract

Water scarcity and high evapotranspiration rates in the Brazilian Northeast region, especially due to climate change, are major limiting factors to the papaya crop. This study aimed to evaluate the leaf water potential in papaya plants at different dates, times of the day (6:00, 8:00, 10:00, 12:00, 14:00, 16:00 and 18:00) and irrigation depths to indicate the crop water deficit. The experiment followed a randomized block design, with four treatments (50, 75, 100 and 125 % of the irrigation depth required to reach the field capacity). The leaf water potential measurements between 12:00 and 14:00 showed the greatest differences among the applied irrigation depths, thus being the most suitable interval for assessing the water status. The water potential of -2.5 MPa can be used as a critical limit for ‘Sunrise Solo’ papaya plants.

KEYWORDS: Carica papaya L., psychrometrics, water deficit.

Downloads

Download data is not yet available.

Downloads

Published

2025-05-27

How to Cite

VIANA, Willker Paulo Oliveira; BRITO, Alexsandro dos Santos; OLIVEIRA, Elcivan Pereira; OLIVEIRA, Cláudio Roberto Meira de; PEIXOUTO, Leandro Santos. Leaf water potential of papaya subjected to irrigation depths under semi-arid climate. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, p. e81185, 2025. Disponível em: https://revistas.ufg.br/pat/article/view/81185. Acesso em: 5 dec. 2025.

Issue

v. 55 (2025)

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.