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Volume 12
Issue 4
10.3390/agriculture12040558
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Article

Particle Film Improves the Physiology and Productivity of Sweet Potato without Affecting Tuber’s Physicochemical Parameters

by
Alexandre Oliveira
1,
Lia-Tânia Dinis
2,*,
Abraão Almeida Santos
3,
Pryanka Fontes
1,
Marcelo Carnelossi
4,
Jailson Fagundes
5 and
Luiz Oliveira-Júnior
6
1
Graduate Program in Agriculture and Biodiversity, Federal University of Sergipe, Saint Cristopher 49100-000, Brazil
2
Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
3
UF/IFAS West Florida Research and Education Center, Milton, FL 32583, USA
4
Department of Food Engineering, Federal University of Sergipe, Saint Cristopher 49100-000, Brazil
5
Department of Animal Science, Federal University of Sergipe, Saint Cristopher 49100-000, Brazil
6
Department of Agronomic Engineering, Federal University of Sergipe, Saint Cristopher 49100-000, Brazil
*
Author to whom correspondence should be addressed.
Agriculture 2022, 12(4), 558; https://doi.org/10.3390/agriculture12040558
Submission received: 14 February 2022 / Revised: 9 April 2022 / Accepted: 11 April 2022 / Published: 14 April 2022
(This article belongs to the Special Issue Effects of Abiotic Stress on Horticultural Crops)
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Abstract

In tropical areas, the lower productivity of sweet potato has been related to unfavorable climatic conditions, as heat stress caused by high temperatures limits the optimal genotypic expression of plants. Innovative techniques, such as particle films, have been proposed to reduce productivity loss caused by such conditions. Herein, we examine whether applying calcium oxide particle films could minimize heat stress on sweet potato under field conditions, reflecting higher productivity. For this purpose, sweet potato plants were exposed to four concentrations of calcium oxide particle film (0, 5, 10, and 15% w/v) applied onto leaves and assessed regarding the physiological, physicochemical, and productivity parameters. Overall, in plants treated with calcium oxide particle films, the photosynthetic rate, intercellular CO2 concentration, water use efficiency, and carboxylation efficiency increased compared to untreated plants. Moreover, we observe a reduction in leaf temperature and stomatal conductance of up to 6.8% and 45%, respectively, in sweet potato plants treated with 10% w/v, resulting in higher productivity (34.97 ton ha−1) compared to the control (21.55 ton ha-1). No effect is noted on tuber physicochemical parameters. In summary, the application of a calcium oxide particle film seems to favor sweet potato crops, alleviating the stress caused by hot climatic conditions in tropical regions.
Keywords: ecophysiology; yield gap; heat stress; bioclimatic conditions; food security ecophysiology; yield gap; heat stress; bioclimatic conditions; food security

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MDPI and ACS Style

Oliveira, A.; Dinis, L.-T.; Santos, A.A.; Fontes, P.; Carnelossi, M.; Fagundes, J.; Oliveira-Júnior, L. Particle Film Improves the Physiology and Productivity of Sweet Potato without Affecting Tuber’s Physicochemical Parameters. Agriculture 2022, 12, 558. https://doi.org/10.3390/agriculture12040558

AMA Style

Oliveira A, Dinis L-T, Santos AA, Fontes P, Carnelossi M, Fagundes J, Oliveira-Júnior L. Particle Film Improves the Physiology and Productivity of Sweet Potato without Affecting Tuber’s Physicochemical Parameters. Agriculture. 2022; 12(4):558. https://doi.org/10.3390/agriculture12040558

Chicago/Turabian Style

Oliveira, Alexandre, Lia-Tânia Dinis, Abraão Almeida Santos, Pryanka Fontes, Marcelo Carnelossi, Jailson Fagundes, and Luiz Oliveira-Júnior. 2022. "Particle Film Improves the Physiology and Productivity of Sweet Potato without Affecting Tuber’s Physicochemical Parameters" Agriculture 12, no. 4: 558. https://doi.org/10.3390/agriculture12040558

APA Style

Oliveira, A., Dinis, L.-T., Santos, A. A., Fontes, P., Carnelossi, M., Fagundes, J., & Oliveira-Júnior, L. (2022). Particle Film Improves the Physiology and Productivity of Sweet Potato without Affecting Tuber’s Physicochemical Parameters. Agriculture, 12(4), 558. https://doi.org/10.3390/agriculture12040558

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