Salt Tolerance Indicators in ‘Tahiti’ Acid Lime Grafted on 13 Rootstocks

Gabriel O. Martins, Stefane S. Santos, Edclecio R. Esteves, Raimundo R. de Melo Neto, Raimundo R. Gomes Filho, Alberto S. de Melo, Pedro D. Fernandes, Hans R. Gheyi, Walter S. Soares Filho and Marcos E. B. Brito ()
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Gabriel O. Martins: Post Graduate Program in Water Resources, Universidade Federal de Sergipe (UFS), Campus of São Cristóvão, São Cristóvão 49100-000, SE, Brazil
Stefane S. Santos: Center of Agrarian Sciences of Sertão (CCAS), Universidade Federal de Sergipe (UFS), Campus of Sertão, Nossa Senhora da Glória 49680-000, SE, Brazil
Edclecio R. Esteves: Center of Agrarian Sciences of Sertão (CCAS), Universidade Federal de Sergipe (UFS), Campus of Sertão, Nossa Senhora da Glória 49680-000, SE, Brazil
Raimundo R. de Melo Neto: Center of Agrarian Sciences of Sertão (CCAS), Universidade Federal de Sergipe (UFS), Campus of Sertão, Nossa Senhora da Glória 49680-000, SE, Brazil
Raimundo R. Gomes Filho: Post Graduate Program in Water Resources, Universidade Federal de Sergipe (UFS), Campus of São Cristóvão, São Cristóvão 49100-000, SE, Brazil
Alberto S. de Melo: Center of Biological and Health Sciences, Universidade Estadual da Paraíba (UEPB), Campus I, Campina Grande 58429-500, PB, Brazil
Pedro D. Fernandes: Center of Tecnologia and Natural Resources (CTRN), Universidade Federal de Campina Grande (UFCG), Campina Grande 58429-900, PB, Brazil
Hans R. Gheyi: Center of Tecnologia and Natural Resources (CTRN), Universidade Federal de Campina Grande (UFCG), Campina Grande 58429-900, PB, Brazil
Walter S. Soares Filho: National Research Center of Cassava and Fruit Crops (CNPMF), Empresa Brasileira de Pesquisa Agropecuaria, Cruz das Almas 44380-000, BA, Brazil
Marcos E. B. Brito: Center of Agrarian Sciences of Sertão (CCAS), Universidade Federal de Sergipe (UFS), Campus of Sertão, Nossa Senhora da Glória 49680-000, SE, Brazil

Agriculture, 2022, vol. 12, issue 10, 1-30

Abstract: The citrus yield is limited by soil and/or water salinity, but appropriate rootstocks can ensure the sustainability of the production system. Therefore, the objective of the present research was to evaluate the salt content in the soil and the production and physiological aspects of the ‘Tahiti’ acid lime combined with thirteen rootstocks, irrigated with saline water in the first two production years to identify indicators of salt tolerance. The rootstocks evaluated were: ‘Santa Cruz Rangpur’ lime, ‘Indio’, ‘Riverside’ and ‘San Diego’ citrandarins, ‘Sunki Tropical’ mandarin, and eight hybrids, obtained from the Citrus Breeding Program of Embrapa Cassava and Fruits. The waters used had three saline levels: 0.14, 2.40, and 4.80 dS m −1 , in a randomized block adopting a split-plot design, with rootstocks in the plots and saline waters in the subplots, with four replicates. From August 2019 to February 2021, fruit harvests and agronomic traits were measured. At the end of each production year, the soil characteristics, leaf gas exchange, and chlorophyll a fluorescence analysis were performed. It was concluded that: (1) the effects of water salinity on citrus are of osmotic nature, reducing gas exchange, (2) the salinity did not significantly damage the photosynthetic apparatus until the second year of production, and (3) using more stable, salt-tolerant rootstocks makes it possible to cultivate ‘Tahiti’ acid lime under irrigation with waters of 2.4 dS m −1 electrical conductivity.

Keywords: chlorophyll a fluorescence; Citrus spp.; fruit production; Poncirus hybrids; salt balance (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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