Biofortification of waterleaf (Talinum triangulare) seedlings with zinc and its benefits to growth and development

Keywords: Agronomic biofortification, Mineral nutrition, leafy vegetable

Abstract

Zinc (Zn) is an important micronutrient in the metabolic processes of plants and animals, and its deficiency in humans can cause several physiological disorders. One way to increase the availability of this nutrient is through the biofortification technique. The waterleaf (Talinum triangulare (Jacq.) Willd) is a vegetable that has great potential for biofortification, since it is consumed and cultivated in several countries. Thus, the aim of this work is to analyze the benefits of zinc biofortification to the growth and development of T. triangulare seedlings. Six Zn concentrations were applied via soil: T1 - control; T2 - 12.5 mg kg-1; T3 - 25 mg kg-1; T4: - 50 mg kg-1; T5 - 100 mg kg-1; and T6 - 200 mg kg-1. The variables analyzed were: length, number of mature and new leaves, buds, dry leaf mass, stem, root, aerial and total part, in addition to the root/aerial part ratio, relative growth rate and zinc and manganese contents. The T6 provided an increase of 284% in zinc and a reduction of 23.97% in manganese compared to T1. Growth and development variables were not significantly affected by different doses of Zn. The T5 and T6 proved to be the most suitable for the biofortification of the species, however additional studies are necessary.

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Author Biographies

Beatriz Costa de Oliveira Queiroz de Souza, Universidade Federal do Oeste do Pará-UFOPA

Interdisciplinary Bachelor in Water Sciences and Technology and undergraduate student in the Bachelor of Biological Sciences at the Federal University of Western Pará. PIBITI fellow by CNPq and intern at the Laboratory of Plant Physiology and Plant Growth. She works in the field of vegetable biofortification, having experience in the field of ethnobotany and mycorrhizal interactions.

Geysa Manuelle Figueira da Silva, Universidade Federal do Oeste do Pará - UFOPA

Bachelor of Biological Sciences and Water Sciences and Technology. Collaborator of the Laboratory of Plant Physiology and Plant Growth at the Federal University of Western Pará. She works with osmotic conditioning of seeds and has experience in biofortification of vegetables and mycorrhizal interactions.

Ivan Alves dos Santos Júnior, Universidade Federal do Oeste do Pará - UFOPA

Master in Biosciences, Bachelor in Biological Sciences (2019) and Graduated in Interdisciplinary Bachelor in Water Sciences and Technology (2016) from the Federal University of Western Pará - UFOPA. He has experience in the area of Environmental Sciences, Limnology, Water Quality, Plant Physiology, Biochemistry and Herpetology.

Haroldo Sá Miranda Júnior, Universidade Federal do Oeste do Pará - UFOPA

Graduating from the Bachelor of Agronomy and intern at the Laboratory of Plant Physiology and Plant Growth at the Federal University of Western Pará. He works with mycorrhizae and has experience in vegetable biofortification, agricultural mechanization and geoprocessing,

Marcos Diones Ferreira Santana, Universidade Federal do Oeste do Pará - UFOPA

Graduated in Biological Sciences at the Federal University of Pará (UFPA), Master in Botany (Applied Botany / Mycology) by the National Institute for Research in the Amazon (INPA) and PhD in Biodiversity and Biotechnology at Rede Bionorte (Museu Goeldi / UFPA). He is currently a server at the Federal University of Oste do Pará (UFOPA), where he studies the diversity, ecology and potential of mycorrhizal fungi; diversity, ecology and biotechnological potential of mushrooms from the western region of Pará and collaborates with the curatorship of the fungi collection at the HSTM-UFOPA Herbarium.

Túlio Silva Lara, Universidade Federal do Oeste do Pará - UFOPA

Professor of the Bachelor's Degree in Biological Sciences and coordinator of the Laboratory of Plant Physiology and Plant Growth at the Federal University of Western Pará. He has experience in osmotic conditioning of seeds, biofortification of vegetables and cereals and mycorrhiza.

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V. 64 (2021): RCA AJAES
Published
2021-05-05
Issue
Vol 64 (2021): RCA AJAES
Section
Scientific Articles

Copyright (c) 2021 Beatriz Costa de Oliveira Queiroz de Souza, Geysa Manuelle Figueira da Silva, Ivan Alves dos Santos Júnior, Haroldo Sá Miranda Júnior, Marcos Diones Ferreira Santana, Túlio Silva Lara

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