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Effects of the plant growth regulators, cobalt and molybdenum on the physiology of ‘Crimson Seedless’ grapevines

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Abstract

Hormonal balance is important for plant metabolism and, consequently, berry development of grapevines (Vitis vinifera L.). Exogenous application of plant growth regulators (PGRs) combined with mineral elements, in satisfactory dosages, can promotes physiologic efficiency. We investigated the effect of foliar application of PGRs alone or combined with mineral elements on 'Crimson Seedless’ grapevines. The metabolism and development of the plants were examined. The treatments were applied via foliar spraying consisting in a PGRs mixture [cytokinin (kinetin—Kt), auxin [4-Indole-3-butyric acid (IBA)], and gibberellin (gibberellic acid—GA3)] and a cobalt (Co) and molybdenum (Mo) mixture were studied. The PGRs and nutrients combined acted as protectors against stress, presenting increases in antioxidant enzyme activities but with a low level of lipid peroxidation. We concluded that the mixture of PGR applied alone or combined with mineral elements favoured content of photosynthetic pigments in the grapevines leaves, antioxidant enzyme activity, translocation and accumulation of reserves.

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Acknowledgements

The authors wish to thank the National Council for the Improvement of Higher Education (CAPES) for the scholarship grant and Dr. Martha Maria Mischan (Universidade Estadual Paulista ‘Júlio de Mesquita Filho’—UNESP, Instituto de Biociências, Biostatistics Department) for substantial help with the statistical analysis.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.

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Correspondence to Amanda Cristina Esteves Amaro Baron.

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Communicated by P. Wojtaszek.

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Amaro Baron, A.C., Baron, D., Souza, E.R. et al. Effects of the plant growth regulators, cobalt and molybdenum on the physiology of ‘Crimson Seedless’ grapevines. Acta Physiol Plant 44, 63 (2022). https://doi.org/10.1007/s11738-022-03394-7

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  • DOI: https://doi.org/10.1007/s11738-022-03394-7

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