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da Silva Oliveira CE, Jalal A, Vitória LS, Giolo VM, Oliveira TJSS, Aguilar JV, de Camargos LS, Brambilla MR, Fernandes GC, Vargas PF, Zoz T, Filho MCMT. Inoculation with Azospirillum brasilense Strains AbV5 and AbV6 Increases Nutrition, Chlorophyll, and Leaf Yield of Hydroponic Lettuce. Plants (Basel) 2023; 12:3107. [PMID: 37687354 PMCID: PMC10490540 DOI: 10.3390/plants12173107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/05/2023] [Accepted: 08/06/2023] [Indexed: 09/10/2023]
Abstract
Inoculation with Azospirillum brasilense has promisingly increased plant yield and nutrient acquisition. The study aimed to estimate the dose of A. brasilense that increases yield, gas exchange, nutrition, and foliar nitrate reduction. The research was carried out in a greenhouse at Ilha Solteira, in a hydroponic system in randomized blocks with four replicates. The treatments consisted of doses of inoculation with A. brasilense strains AbV5 and AbV6 via nutrient solution (0, 8, 16, 32, and 64 mL 100 L-1). Inoculation with A. brasilense at calculated doses between 20 and 44 mL provided the highest fresh and dry mass of shoots and roots, number of leaves, and leaf yield. In addition, the calculated doses of inoculation with A. brasilense increased the accumulation of N, P, K, Ca, Mg, S, B, Fe, Mn, and Zn in shoots and roots, except the accumulation of Ca in roots. It also increased cell membrane integrity index (15%), relative water content (13%), net photosynthesis rate (85%), intracellular CO2 concentration (15%), total chlorophyll (46%), stomatal conductance (56%), transpiration (15%), and water use efficiency (59%). Hence, inoculation with A. brasilense at doses between 20 and 44 mL 100 L-1 is considered the best approach for increasing the growth, yield, accumulation of nutrients, and gas exchange of hydroponically grown iceberg lettuce.
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Affiliation(s)
- Carlos Eduardo da Silva Oliveira
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
| | - Arshad Jalal
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
| | - Letícia Schenaide Vitória
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
| | - Victoria Moraes Giolo
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
| | - Thaissa Julyanne Soares Sena Oliveira
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
| | - Jailson Vieira Aguilar
- Department of Biology and Zootechny, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (J.V.A.); (L.S.d.C.); (M.R.B.)
| | - Liliane Santos de Camargos
- Department of Biology and Zootechny, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (J.V.A.); (L.S.d.C.); (M.R.B.)
| | - Matheus Ribeiro Brambilla
- Department of Biology and Zootechny, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (J.V.A.); (L.S.d.C.); (M.R.B.)
| | - Guilherme Carlos Fernandes
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
| | - Pablo Forlan Vargas
- Tropical Root and Starches Center (CERAT), Faculty of Agricultural Science, São Paulo State University—UNESP-FCA, Botucatu 18610-034, SP, Brazil;
| | - Tiago Zoz
- Unit of Mundo Novo, Department of Crop Science, State University of Mato Grosso do Sul—UEMS, Mundo Novo 79980-000, MS, Brazil;
| | - Marcelo Carvalho Minhoto Teixeira Filho
- Department of Plant Protection, Rural Engineering and Soils, Faculty of Engineering, São Paulo State University—UNESP-FEIS, Ilha Solteira 15385-000, SP, Brazil; (A.J.); (L.S.V.); (V.M.G.); (T.J.S.S.O.); (G.C.F.)
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Moreira VDA, Oliveira CEDS, Jalal A, Gato IMB, Oliveira TJSS, Boleta GHM, Giolo VM, Vitória LS, Tamburi KV, Filho MCMT. Inoculation with Trichoderma harzianum and Azospirillum brasilense increases nutrition and yield of hydroponic lettuce. Arch Microbiol 2022; 204:440. [PMID: 35771351 DOI: 10.1007/s00203-022-03047-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/03/2022] [Indexed: 11/29/2022]
Abstract
The use of beneficial fungi and bacteria stimulate plant growth and serve to improve yield and food quality in a sustainable manner. The electrical conductivity of nutrients solution is closely linked to better nutrition of vegetable plants in a hydroponic system. Therefore, objectives of current study were to evaluate the effect of isolated and combined inoculation with Azospirillum brasilense and Trichoderma harzianum under two electrical conductivities on growth, nutrition, and yield of lettuce in hydroponic cultivation. The experiment was designed in a strip-plot block with five replications in a 4 × 2 factorial scheme. The treatments were consisted of four microbial inoculations (without, A. brasilense, T. harzianum and co-inoculation) and electrical conductivities (1.2 and 1.4 dS m-1). Inoculation with A. brasilense and T. harzianum increased lettuce root growth by 47% and 20%, respectively. The single inoculation of T. harzianum provided higher fresh leaves yield (24%) at electrical conductivity of 1.2 dS m-1, while single inoculation with A. brasilense increased fresh leaves yield by 17% at electrical conductivity 1.4 dS m-1. The lowest shoot NO3- accumulation (40%) was observed with inoculation of A. brasilense and highest (28%) with inoculation T. harzianum in both electrical conductivities. Inoculation with A. brasilense increased leaf accumulation of K, P, Ca, Mg, Fe, Mn, Cu, and Zn, which are essential for human nutrition and being recommended to improve yield of lettuce plants in hydroponics. It is recommended to use EC 1.4 dS m-1 of the nutrients solution to improve accumulation of K, Mn, Cu, and Zn, regardless of inoculations for biofortification of lettuce with application of fertilizers.
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Affiliation(s)
- Vitoria de Almeida Moreira
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Carlos Eduardo da Silva Oliveira
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil.
| | - Arshad Jalal
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Isabela Martins Bueno Gato
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Thaissa Julyanne Soares Sena Oliveira
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Guilherme Henrique Marcandalli Boleta
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Victoria Moraes Giolo
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Letícia Schenaide Vitória
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Karen Vicentini Tamburi
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil
| | - Marcelo Carvalho Minhoto Teixeira Filho
- Department of Plant Protection, Rural Engineering and Soils, São Paulo State University-UNESP-FEIS, School of Engineering, Ilha Solteira, São Paulo, 15385-000, Brazil.
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