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10.3390/plants9060722
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Article

Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus

by
Daniele Nogueira dos Reis
1,
Fabiano Guimarães Silva
1,*,
Reginaldo da Costa Santana
1,
Thales Caetano de Oliveira
1,
Mariângela Brito Freiberger
1,
Fábia Barbosa da Silva
2,
Elídio Monteiro Júnior
3 and
Caroline Müller
4
1
Plant Tissue Culture Laboratory, Goiano Federal Institute of Science and Technology—Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
2
Plants Stress Study Laboratory, University of São Paulo, Luiz de QueirózAgriculture School, P.O. Box 9, 13418-900 Piracicaba, SP, Brazil
3
Biodiversity Laboratory, Minas South Federal Institute of Science and Technology—Campus Poços de Caldas, 37713-100 Poços de Caldas, MG, Brazil
4
Ecophysiology and Plant Productivity Laboratory, Goiano Federal Institute of Science and Technology—Campus Rio Verde, P.O. Box 66, 75901-970 Rio Verde, GO, Brazil
*
Author to whom correspondence should be addressed.
Plants 2020, 9(6), 722; https://doi.org/10.3390/plants9060722
Submission received: 7 May 2020 / Revised: 29 May 2020 / Accepted: 1 June 2020 / Published: 8 June 2020
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Abstract

The production of high-quality seedlings and their use in commercial planting reduce pressure on natural areas. Eugenia dysenterica DC is a native fruit tree from the Brazilian Cerrado, whose nutritional requirements are still unclear. This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) supplementation on the physiology, growth and nutrient uptake, and use efficiencies of E. dysenterica seedlings grown in glasshouse conditions. The following rates were used in separate experiments: 0, 50, 100, 200, and 400 mg dm−3 N and 0, 100, 200, 400, and 600 mg dm−3 P. The experiment was conducted in a randomized block with four replications. The lowest N rate (50 mg dm−3) increased the stomatal conductance (gS) and, consequently, resulted in the highest transpiration (E), electron transport (ETR), and photosynthetic (A) rates. Also, rates of 50 mg dm−3 and 100 mg dm−3 N increased the Root Uptake Efficiency (RUE) and plant Nutrient Use Efficiency (NUE) for macronutrients and the RUE for micronutrients, stimulating plant growth. Phosphorous fertilization resulted in the maximum values for photosynthesis, electron transport rate, total dry mass, and NUE at the 200 mg dm−3 rate. The results of this study suggest that fertilization with 50 mg dm−3 N and 200 mg dm−3 P is suitable for the development of E. dysenterica seedlings.
Keywords: macronutrients; mineral nutrition; cagaita; Brazilian Cerrado macronutrients; mineral nutrition; cagaita; Brazilian Cerrado
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MDPI and ACS Style

Nogueira dos Reis, D.; Guimarães Silva, F.; da Costa Santana, R.; Caetano de Oliveira, T.; Brito Freiberger, M.; Barbosa da Silva, F.; Monteiro Júnior, E.; Müller, C. Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus. Plants 2020, 9, 722. https://doi.org/10.3390/plants9060722

AMA Style

Nogueira dos Reis D, Guimarães Silva F, da Costa Santana R, Caetano de Oliveira T, Brito Freiberger M, Barbosa da Silva F, Monteiro Júnior E, Müller C. Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus. Plants. 2020; 9(6):722. https://doi.org/10.3390/plants9060722

Chicago/Turabian Style

Nogueira dos Reis, Daniele, Fabiano Guimarães Silva, Reginaldo da Costa Santana, Thales Caetano de Oliveira, Mariângela Brito Freiberger, Fábia Barbosa da Silva, Elídio Monteiro Júnior, and Caroline Müller. 2020. "Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus" Plants 9, no. 6: 722. https://doi.org/10.3390/plants9060722

APA Style

Nogueira dos Reis, D., Guimarães Silva, F., da Costa Santana, R., Caetano de Oliveira, T., Brito Freiberger, M., Barbosa da Silva, F., Monteiro Júnior, E., & Müller, C. (2020). Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus. Plants, 9(6), 722. https://doi.org/10.3390/plants9060722

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