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Soybean seed treatment with zinc: absorption and distribution during germination and seedling development evaluated by X-ray spectroscopy and relation with plant performance

Grant number: 19/17967-8
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): October 01, 2019
Effective date (End): July 31, 2021
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Principal Investigator:Francisco Guilhien Gomes Junior
Grantee:Lívia Araújo Rohr
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated research grant:18/13139-0 - Development of imaging analysis procedures to evaluate physical, chemical and physiological properties of seeds and seedlings, AP.ESCIENCE.R


Zinc is a cofactor in enzymatic reactions and therefore participates in several biochemical cycles of plants, including photosynthesis and sugar formation, protein synthesis, fertility and seed production, growth regulation and defense against diseases. The objective of this project is to evaluate the Zn absorption and distribution, applied through seed treatment, during the germination and development of soybean seedlings by X-ray spectroscopy, and to associate with the plant performance at phonological stage V2 (first trifoliolate leaf fully developed, or two nodes). Two soybean seed lots of a same cultivar presenting different vigor levels will be treated with the doses of 0, 2, 4, and 8 g of Zn per kg of seed, using as source micronized zinc oxide (ZnO). Control treatment will consist in untreated seeds. The absorption and distribution of this element in the seeds and seedlings will be mapped by X-ray spectroscopy. Evaluations of leaf area, plant height, root and shoot dry mass, and content and accumulation of zinc by plants will be performed at the phonological stage V2. The efficiency of Zn uptake by soybean seedlings from lower and higher seed vigor lots will be compared with plant evaluations at V2. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
LÍVIA ARAÚJO ROHR; FABIANO FRANÇA-SILVA; CAMILA GRAZIELE CORRÊA; HUDSON WALLACE PEREIRA DE CARVALHO; FRANCISCO GUILHIEN GOMES-JUNIOR. Soybean seeds treated with zinc evaluated by X-ray micro-fluorescence spectroscopy. Scientia Agricola, v. 80, . (18/13139-0, 19/17967-8)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
ROHR, Lívia Araújo. Soybean seed treatment with zinc: absorption and distribution of zinc during germination, and its relation with initial plant performance. 2021. Master's Dissertation - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.

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