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2018
Brito, Marcos E. B.; Soares, Lauriane A. A.; Filho, Walter S. Soares; Fernandes, Pedro D.; Silva, Elaine C. B.; Sá, Francisco V. S.; Silva, Luderlândio A.
Emergence and morphophysiology of Sunki mandarin and other citrus genotypes seedlings under saline stress Journal Article
In: Spanish Journal of Agricultural Research, vol. 16, iss. 1, pp. e0801-e0801, 2018, ISSN: 2171-9292.
Abstract | Links | BibTeX | Tags: agriculture, breeding, Citrus spp., diseases, economics, fertilization, genetic resources, genetics, growth, irrigation, livestock, pests, photosynthesis, physiology, reproduction, rootstock, Salinity, soils, water manage, weeds
@article{Brito2018,
title = {Emergence and morphophysiology of Sunki mandarin and other citrus genotypes seedlings under saline stress},
author = {Marcos E. B. Brito and Lauriane A. A. Soares and Walter S. Soares Filho and Pedro D. Fernandes and Elaine C. B. Silva and Francisco V. S. Sá and Luderlândio A. Silva},
url = {https://revistas.inia.es/index.php/sjar/article/view/9400/3932 https://revistas.inia.es/index.php/sjar/article/view/9400},
doi = {10.5424/SJAR/2018161-9400},
issn = {2171-9292},
year = {2018},
date = {2018-01-01},
journal = {Spanish Journal of Agricultural Research},
volume = {16},
issue = {1},
pages = {e0801-e0801},
publisher = {Ministerio de Agricultura Pesca y Alimentacion},
abstract = {The scarcity of good quality water is a limiting factor for irrigated agriculture, especially in arid and semiarid regions, where water sources generally contain high concentrations of ions. In such conditions, it is essential to cultivate genotypes with economic potential and tolerance to salinity. Considering the importance of citrus and the need to identify genetic materials that adapt to saline stress, this study evaluates the salinity tolerance of 10 genotypes with rootstock potential. For the irrigation water, five levels of electrical conductivity (ECw: 0.8, 1.6, 2.4, 3.2 and 4.0 dS/m at 25 °C) were used in a randomized block design with three replications, and seed germination and growth variables, as well as physiological plant parameters, were evaluated. The germination rate of the hybrid TSKC × CTARG – 019 was the best under salt conditions, as it was the genotype with the highest tolerance to salinity in the germination stage. Salinity reduced the growth of the citrus genotypes, with the possibility of using water with EC of up to 1.6 dS/m in the rootstock formation stage. Salt stress affected the photosynthetic rate of the genotypes ‘San Diego’ citrandarin and TSKC × CTSW – 018 by reducing the stomatal conductance, restricting the diffusion of CO2 into the substomatal camera. The genotypes TSKC × CTARG – 019, TSKC × CTTR – 012 and TSKC × TRBK – 007 have the greatest potential for growth and photosynthetic apparatus efficiency when subjected to salinity.},
keywords = {agriculture, breeding, Citrus spp., diseases, economics, fertilization, genetic resources, genetics, growth, irrigation, livestock, pests, photosynthesis, physiology, reproduction, rootstock, Salinity, soils, water manage, weeds},
pubstate = {published},
tppubtype = {article}
}
The scarcity of good quality water is a limiting factor for irrigated agriculture, especially in arid and semiarid regions, where water sources generally contain high concentrations of ions. In such conditions, it is essential to cultivate genotypes with economic potential and tolerance to salinity. Considering the importance of citrus and the need to identify genetic materials that adapt to saline stress, this study evaluates the salinity tolerance of 10 genotypes with rootstock potential. For the irrigation water, five levels of electrical conductivity (ECw: 0.8, 1.6, 2.4, 3.2 and 4.0 dS/m at 25 °C) were used in a randomized block design with three replications, and seed germination and growth variables, as well as physiological plant parameters, were evaluated. The germination rate of the hybrid TSKC × CTARG – 019 was the best under salt conditions, as it was the genotype with the highest tolerance to salinity in the germination stage. Salinity reduced the growth of the citrus genotypes, with the possibility of using water with EC of up to 1.6 dS/m in the rootstock formation stage. Salt stress affected the photosynthetic rate of the genotypes ‘San Diego’ citrandarin and TSKC × CTSW – 018 by reducing the stomatal conductance, restricting the diffusion of CO2 into the substomatal camera. The genotypes TSKC × CTARG – 019, TSKC × CTTR – 012 and TSKC × TRBK – 007 have the greatest potential for growth and photosynthetic apparatus efficiency when subjected to salinity.
2017
Chaiene, Roberta; Barbosa, Almeida; Marcos, ;; Brito, Eric Barbosa; Vanies, Francisco; Sá, Silva; Walter, ;; Santos, Dos; Filho, Soares; Pedro, ;; Fernandes, Dantas; Luderlândio, ;; Silva, Andrade
Gas exchange of citrus rootstocks in response to intensity and duration of saline stress Journal Article
In: Semina: Ciências Agrárias, vol. 38, iss. 2, pp. 725-738, 2017, ISSN: 1679-0359.
Abstract | Links | BibTeX | Tags: Assimilation rate, Citrus spp, Poncirus hybrids, Salinity, Tolerance.
@article{Chaiene2017,
title = {Gas exchange of citrus rootstocks in response to intensity and duration of saline stress},
author = {Roberta Chaiene and Almeida Barbosa and ; Marcos and Eric Barbosa Brito and Francisco Vanies and Silva Sá and ; Walter and Dos Santos and Soares Filho and ; Pedro and Dantas Fernandes and ; Luderlândio and Andrade Silva},
url = {https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25237},
doi = {10.5433/1679-0359.2017V38N2P725},
issn = {1679-0359},
year = {2017},
date = {2017-01-01},
journal = {Semina: Ciências Agrárias},
volume = {38},
issue = {2},
pages = {725-738},
publisher = {University of Western Sydneys},
abstract = {Soil and water salinity cause physiological disorders in sensitive plants, such as altered gas exchange in citrus genotypes. However, it is possible to analyse these effects and to identify genotypes tolerant to salt stress. An experiment was carried out in order to evaluate the tolerance of citrus genotypes considering the irrigation with saline water during rootstock formation. The study took place under greenhouse conditions in Pombal county, Paraiba, Brazil. A randomised block design was used, with treatments arranged in a factorial scheme (5 x 8). The two factors were: [i] five salinity levels of irrigation water (0.8, 1.6, 2.4, 3.2 and 4.0 dS m-1) and [ii] eight genotypes of citrus rootstocks: 1. ‘Rangpur Santa Cruz’ lime (LCRSTC); 2. common ‘Sunki’ mandarin (TSKC) x ‘Swingle’ citrumelo (CTSW) - 028; 3. TSKC x CTSW - 033; 4. TSKC x CTSW - 041; 5. ‘Volkamer’ lemon (LVK) x ‘Rangpur’ lime (LCR) - 038; 6. ‘Sunki of Florida’ mandarin (TSKFL); 7. TSKC and 8. ‘Florida’ rough lemon (LRF). Gas exchange was evaluated at 15, 30 and 60 days after the beginning of the saline water application. High water salinity reduces gas exchange in citrus genotypes, which was more evident at 15 days from the beginning of stress. The genotypes ‘Santa Cruz Rangpur’ lime, TSKC x CTSW - 041, LVK x LCR - 038 and ‘Florida’ rough lemon exhibit a satisfactory physiological behaviour during the first 30 days of exposure to the stress, showing moderate tolerance to salt stress. The genotypes TSKC x CTSW - 033 and common ‘Sunki’ mandarin are the most sensitive to salinity.},
keywords = {Assimilation rate, Citrus spp, Poncirus hybrids, Salinity, Tolerance.},
pubstate = {published},
tppubtype = {article}
}
Soil and water salinity cause physiological disorders in sensitive plants, such as altered gas exchange in citrus genotypes. However, it is possible to analyse these effects and to identify genotypes tolerant to salt stress. An experiment was carried out in order to evaluate the tolerance of citrus genotypes considering the irrigation with saline water during rootstock formation. The study took place under greenhouse conditions in Pombal county, Paraiba, Brazil. A randomised block design was used, with treatments arranged in a factorial scheme (5 x 8). The two factors were: [i] five salinity levels of irrigation water (0.8, 1.6, 2.4, 3.2 and 4.0 dS m-1) and [ii] eight genotypes of citrus rootstocks: 1. ‘Rangpur Santa Cruz’ lime (LCRSTC); 2. common ‘Sunki’ mandarin (TSKC) x ‘Swingle’ citrumelo (CTSW) - 028; 3. TSKC x CTSW - 033; 4. TSKC x CTSW - 041; 5. ‘Volkamer’ lemon (LVK) x ‘Rangpur’ lime (LCR) - 038; 6. ‘Sunki of Florida’ mandarin (TSKFL); 7. TSKC and 8. ‘Florida’ rough lemon (LRF). Gas exchange was evaluated at 15, 30 and 60 days after the beginning of the saline water application. High water salinity reduces gas exchange in citrus genotypes, which was more evident at 15 days from the beginning of stress. The genotypes ‘Santa Cruz Rangpur’ lime, TSKC x CTSW - 041, LVK x LCR - 038 and ‘Florida’ rough lemon exhibit a satisfactory physiological behaviour during the first 30 days of exposure to the stress, showing moderate tolerance to salt stress. The genotypes TSKC x CTSW - 033 and common ‘Sunki’ mandarin are the most sensitive to salinity.