Mitigation of salt stress damages in Carica papaya L. seedlings through exogenous pretreatments of gibberellic acid and proline

  1. Sergio Joaquín Álvarez Méndez 1
  2. Antonio Urbano Gálvez 1
  3. Jalel Mahouachi 1
  1. 1 Universidad de La Laguna

    Universidad de La Laguna

    San Cristobal de La Laguna, España


Agricultura técnica = Chilean Journal of Agricultural Research

ISSN: 0718-5839

Year of publication: 2022

Volume: 82

Issue: 1

Pages: 167-176

Type: Article

DOI: 10.4067/S0718-58392022000100167 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Agricultura técnica = Chilean Journal of Agricultural Research


Cited by

  • Scopus Cited by: 3 (29-10-2023)
  • Web of Science Cited by: 2 (18-10-2023)
  • Dimensions Cited by: 2 (25-03-2023)

JCR (Journal Impact Factor)

  • Year 2022
  • Journal Impact Factor: 1.7
  • Journal Impact Factor without self cites: 1.5
  • Article influence score: 0.22
  • Best Quartile: Q2
  • Area: AGRICULTURE, MULTIDISCIPLINARY Quartile: Q2 Rank in area: 28/58 (Ranking edition: SCIE)
  • Area: AGRONOMY Quartile: Q3 Rank in area: 49/88 (Ranking edition: SCIE)

SCImago Journal Rank

  • Year 2022
  • SJR Journal Impact: 0.406
  • Best Quartile: Q2
  • Area: Agronomy and Crop Science Quartile: Q2 Rank in area: 143/383
  • Area: Animal Science and Zoology Quartile: Q2 Rank in area: 191/469

Scopus CiteScore

  • Year 2022
  • CiteScore of the Journal : 3.1
  • Area: Animal Science and Zoology Percentile: 72
  • Area: Agronomy and Crop Science Percentile: 61

Journal Citation Indicator (JCI)

  • Year 2022
  • Journal Citation Indicator (JCI): 0.52
  • Best Quartile: Q2
  • Area: AGRONOMY Quartile: Q2 Rank in area: 50/126
  • Area: AGRICULTURE, MULTIDISCIPLINARY Quartile: Q2 Rank in area: 29/85


(Data updated as of 25-03-2023)
  • Total citations: 2
  • Recent citations: 2


Salinity is a serious threat for global agriculture, especially in arid and semi-arid regions where its incidence leads to considerable damages in the crop growth and production. Carica papaya L. is currently one of the most cultivated fruit crops in the tropical and subtropical areas, and generally, papaya cultivars exhibit a moderate sensitivity to salinity, although such responses may depend on the genotypes. In the present study, papaya seedlings were subjected to salt stress (100 mM NaCl) for 41 d and to exogenous gibberellic acid (GA3; 0.1 mM) and proline (10 mM) pretreatments to evaluate plant physiological variables linked to stress responses. Analysis of the data (P < 0.05) showed a general decrease of plant growth parameters induced by solely salt stress compared to control, such as stem height (47%) and thickness (33%) and plant fresh and dry mass (84% and 83%, respectively), as well as a reduction in the stomatal opening (93%), chlorophylls (40%) and carotenoids (71%) concentration. By contrast, a significant increase was found in foliar and radicular proline levels under stress (87% and 47%). Exogenous foliar GA3 or proline respectively induced a better performance of plants under salt stress by increasing stomatal conductance (444% or 350%), stem height (142% or 144%) and plant biomass (49% or 41%) regarding solely stressed plants, and leading to pigments concentrations close to those from control plants. The results suggest that exogenous gibberellic acid and proline as growth regulator and osmo-regulator solute, respectively could increase papaya seedlings adaption against salt stress.