Growth and physiology of citrus rootstocks under salt stress

Authors

  • Francisco Vaniés da Silva Sá Universidade Federal de Campina Grande
  • Marcos Eric Barbosa Brito Universidade Federal de Campina Grande
  • Rômulo Carantino Lucena Moreira Universidade Federal de Campina Grande
  • Luderlândio de Andrade Silva Universidade Federal de Campina Grande
  • Walter Soares dos Santos Filho Empresa Brasileira de Pesquisa Agropecuária
  • Lizaiane Cardoso de Figueiredo Universidade Federal de Campina Grande
  • Hans Raj Gheyi Universidade Federal do Recôncavo Baiano
  • Pedro Dantas Fernandes Universidade Federal de Campina Grande

DOI:

https://doi.org/10.14393/BJ-v34n1a2018-36553

Keywords:

Citrus spp., Chlorophyll fluorescence, Growth rate, Gas exchange, Salinity

Abstract

In order to study the growth and physiology of citrus rootstocks under saline water irrigation, during formation of rootstocks, an assay was carried out in a factorial scheme, 2 x 6, corresponding to two levels of salinity of the nutrient solution: 0.3 and 4.0 dS m-1 and six genotypes provided by the Citrus Breeding Program of Embrapa Cassava & Fruits-CBP, distributed in randomized block design with three replications. The genotypes were: 1.'Santa Cruz Rangpur' lime (SCRL) (Citrus limonia Osbeck), 2. 'Florida Rough' lemon (FRL) (Citrus jambhiri Lush.), 3. 'Volkamer' lemon (VKL) (C. volkameriana V. Ten. &Pasq.), 4. CSM x SWC- 028, 5. CSM x SWC- 033 and 6.CSM x SWC-041, the last three hybrids of common 'Sunki' mandarin (CSM) [C.sunki (Hayata) hort. ex Tanaka] with 'Swingle' citrumelo (SWC) [C. paradisi Macfad. x Poncirus trifoliata (L.) Raf.]. Nucellar plants from these genotypes were grown in alternative hydroponic system, using Leonard jars. Application of nutrient solution made with saline water started from 90 days after sowing until 120 days, when the growth and physiology parameters of plants were evaluated. Salt stress influenced the growth and physiological parameters in all genotypes. Salt stress did not influence the chlorophyll a fluorescence in the genotypes VKL and CSM x SWC- 041, indicating no damage to the photosynthetic apparatus. The CSM x SWC- 041, 'Santa Cruz Rangpur' lime, 'Florida Rough' lemon and 'Volkamer' lemon are the more tolerant genotypes to salinity based on growth rate.

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Published

2018-08-08

How to Cite

SÁ, F.V. da S., BRITO, M.E.B., MOREIRA, R.C.L., SILVA, L. de A., SANTOS FILHO, W.S. dos, FIGUEIREDO, L.C. de, GHEYI, H.R. and FERNANDES, P.D., 2018. Growth and physiology of citrus rootstocks under salt stress . Bioscience Journal [online], vol. 34, no. 4, pp. 907–916. [Accessed20 May 2022]. DOI 10.14393/BJ-v34n1a2018-36553. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/36553.

Issue

Section

Agricultural Sciences