Fluorescence emission and photochemical yield of parsley under saline waters of different cationic nature

Martins, Juliana Bezerra; Júnior, José Amilton Santos; Leal, Lucas Yago de Carvalho; Paulino, Martha Katharinne Silva Souza; Souza, Eliane Helena Alvim de; Gheyi, Hans Raj

doi:10.1016/j.scienta.2020.109574

Cited by 5 publications

(8 citation statements)

References 28 publications

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“…On the other hand, Martins et al (2020), when exposing parsley plants to nutrient solutions prepared in brackish waters with a prevalence of Na + , found that the Fv/F 0 ratio was maximal (3.18) at the estimated ECns of 5.49 dS m -1 . Although the same trend was verified in the present study, the difference between the maximum values can be attributed to the asymmetry in the tolerance of the crops and the difference in management practices adopted.…”

Section: Resultsmentioning

confidence: 99%

“…Coriander (Coriandrum sativum L.) is a vegetable with high demand for consumption worldwide (Prachayasittikul et al, 2017), mainly in the Northeastern region of Brazil, having wide use in cooking (Menezes et al, 2020). Faced with water limitations, especially in arid and semi-arid regions, the use of brackish water can be an alternative to enable the practice of agriculture, and in this context, studies that have evaluated the viability of using the available brackish waters in the cultivation of leafy vegetables, have already been carried out (Campos Júnior et al, 2018;Martins et al, 2020), but with a focus on management techniques.…”

Section: Introductionmentioning

confidence: 99%

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Physiological aspects and production of coriander using nutrient solutions prepared in different brackish waters

Navarro

Júnior

Martins

et al. 2022

Rev. bras. eng. agríc. ambient.

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The analysis of chlorophyll fluorescence is one of many ways to quantify the salt damage to photosynthetic performance and crop production. Thus, the present study aimed to evaluate the photochemical efficiency and production of coriander, cultivar ‘Verdão’, as a function of the electrical conductivity levels of the nutrient solution and the cationic nature. The experimental design was in randomized blocks, in a 4 × 3 factorial scheme, with four replicates. The treatments consisted of four electrical conductivities of the nutrient solutions (ECns = 1.6, 3.2, 4.8, and 6.4 dS m-1) and three kinds of water of different cationic natures (Na+; Ca2+; Mg2+), which were prepared with the dissolution of different salts - NaCl, CaCl2.2H2O, and MgCl2.6H2O in supply water (ECw = 0.12 dS m-1), that is, three predominant cationic natures. The study was carried out in a greenhouse between November and December 2019 at the Fertigation and Salinity Laboratory of the Agricultural Engineering Department of the Universidade Federal Rural de Pernambuco. It was found that the increase in the electrical conductivity of the nutrient solution affected reaction centers, photochemical activity, and carboxylation efficiency and resulted in reductions in stomatal conductance, CO2 assimilation rate, and therefore, in the biomass production of coriander. Different cationic prevalence in water causes differences in the intensity of salt damage, especially with increasing concentration.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physiological aspects and production of coriander using nutrient solutions prepared in different brackish waters

Navarro

Júnior

Martins

et al. 2022

Rev. bras. eng. agríc. ambient.

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“…Studies in various plant species have shown that salt stress results in a decrease in F v /F m (Huang et al, 2014;Martins et al, 2020;Sun et al, 2021). A reduction of F v /F m can be used as an indicator of photo-inhibition in stressed plants (Hichem et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Combining Genome and Gene Co-expression Network Analyses for the Identification of Genes Potentially Regulating Salt Tolerance in Rice

et al. 2021

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Salinity stress tolerance is a complex polygenic trait involving multi-molecular pathways. This study aims to demonstrate an effective transcriptomic approach for identifying genes regulating salt tolerance in rice. The chromosome segment substitution lines (CSSLs) of “Khao Dawk Mali 105 (KDML105)” rice containing various regions of DH212 between markers RM1003 and RM3362 displayed differential salt tolerance at the booting stage. CSSL16 and its nearly isogenic parent, KDML105, were used for transcriptome analysis. Differentially expressed genes in the leaves of seedlings, flag leaves, and second leaves of CSSL16 and KDML105 under normal and salt stress conditions were subjected to analyses based on gene co-expression network (GCN), on two-state co-expression with clustering coefficient (CC), and on weighted gene co-expression network (WGCN). GCN identified 57 genes, while 30 and 59 genes were identified using CC and WGCN, respectively. With the three methods, some of the identified genes overlapped, bringing the maximum number of predicted salt tolerance genes to 92. Among the 92 genes, nine genes, OsNodulin, OsBTBZ1, OsPSB28, OsERD, OsSub34, peroxidase precursor genes, and three expressed protein genes, displayed SNPs between CSSL16 and KDML105. The nine genes were differentially expressed in CSSL16 and KDML105 under normal and salt stress conditions. OsBTBZ1 and OsERD were identified by the three methods. These results suggest that the transcriptomic approach described here effectively identified the genes regulating salt tolerance in rice and support the identification of appropriate QTL for salt tolerance improvement.

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“…The use of brackish water in the preparation of a nutrient solution in hydroponic vegetable crops has been widely adopted, mainly in semi-arid regions where the water has a high concentration and variability of salts (Martins et al, 2020). Sodium, magnesium, and calcium are the most prevalent ions in waters (Paiva et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…In parsley plants exposed to different cationic natures there are changes in production (Martins et al, 2019b), water relationships (Martins et al, 2019a), and photochemical efficiency (Martins et al, 2020). However, studies that address aspects of use efficiency and relationships between nutrients are still scarce.…”

Section: Introductionmentioning

confidence: 99%

Ionic relationships between macronutrients and sodium in parsley under nutrient solutions prepared with brackish water

Muchecua

Júnior

Menezes

et al. 2022

Rev. bras. eng. agríc. ambient.

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The concentration and nature of ions directly influence ionic relationships between macronutrients and sodium, especially in the context of plants grown under saline conditions. The goal of this study was to analyze the efficiency of use of N, P, K, Ca, Mg, and S, the efficiency of Na accumulation, and the relationships between Ca+2, Mg+2, Na+, and K+ after analysis of parsley, cultivar Graúda Portuguesa, plant tissues exposed to nutrient solutions prepared with brackish water with different cationic natures. The treatments consisted of exposing plants to nutrient solutions (ECns = 1.7, 2.7, 3.7, 4.7, 5.7, and 6.7 dS m-1) prepared with brackish water obtained by solubilizing different salts, NaCl, CaCl2.2H2O, MgCl2.6H2O, and KCl in supply water (ECw = 0.12 dS m-1). Two cultivation cycles were conducted, adopting a completely randomized experimental design in both (6 × 4 factorial scheme), with four replicates. The efficiency of the use of macronutrients and sodium accumulation was more affected by the cationic nature of the water at the highest concentration levels. Except for the Ca+2 - Mg+2 ratio, all other cationic ratios were affected by the increase in the concentration of salts in the nutrient solution.

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Fluorescence emission and photochemical yield of parsley under saline waters of different cationic nature

Cited by 5 publications

References 28 publications

Physiological aspects and production of coriander using nutrient solutions prepared in different brackish waters

Physiological aspects and production of coriander using nutrient solutions prepared in different brackish waters

Combining Genome and Gene Co-expression Network Analyses for the Identification of Genes Potentially Regulating Salt Tolerance in Rice

Ionic relationships between macronutrients and sodium in parsley under nutrient solutions prepared with brackish water

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