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Oliveira SL, Crusciol CAC, Rodrigues VA, Galeriani TM, Portugal JR, Bossolani JW, Moretti LG, Calonego JC, Cantarella H. Molybdenum Foliar Fertilization Improves Photosynthetic Metabolism and Grain Yields of Field-Grown Soybean and Maize. Front Plant Sci 2022; 13:887682. [PMID: 35720532 PMCID: PMC9199428 DOI: 10.3389/fpls.2022.887682] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/29/2022] [Indexed: 06/02/2023]
Abstract
Foliar fertilization has been used as a supplemental strategy to plant nutrition especially in crops with high yield potential. Applying nutrients in small doses stimulates photosynthesis and increases yield performance. The aim of this study was to evaluate the efficiency of foliar application of molybdenum (Mo) to soybean and maize. The treatments consisted of the presence (+Mo) and absence (-Mo) of supplementation. Plant nutritional status, nitrate reductase (NR) activity, gas exchange parameters, photosynthetic enzyme activity (Rubisco in soybean and maize and PEPcase in maize), total soluble sugar concentration, leaf protein content, shoot dry matter, shoot nitrogen accumulated, number of grains per plant, mass of 100 grains, and grain yield were evaluated. For soybean and maize, application of Mo increased leaf NR activity, nitrogen and protein content, Rubisco activity, net photosynthesis, and grain yield. These results indicate that foliar fertilization with Mo can efficiently enhance nitrogen metabolism and the plant’s response to carbon fixation, resulting in improved crop yields.
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Affiliation(s)
- Sirlene Lopes Oliveira
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | | | - Vitor Alves Rodrigues
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | - Tatiani Mayara Galeriani
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | - José Roberto Portugal
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | - João William Bossolani
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | - Luiz Gustavo Moretti
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | - Juliano Carlos Calonego
- Department of Crop Science, College of Agricultural Sciences, São Paulo State University, Botucatu, Brazil
| | - Heitor Cantarella
- Soils and Environmental Resources Center, Agronomic Institute of Campinas (IAC), Campinas, Brazil
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