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Maize seed treatment with zinc and copper

Grant number: 12/05598-9
Support type:Scholarships in Brazil - Master
Effective date (Start): June 01, 2012
Effective date (End): September 30, 2013
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Principal researcher:Silvio Moure Cicero
Grantee:Marcos Altomani Neves Dias
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated research grant:06/57900-0 - Seed imaging analysis in seed technology research, AP.TEM
Associated scholarship(s):13/00563-5 - Pericarp permeability of maize seeds evaluated with fluorescent tracers, BE.EP.MS


Seed treatment consists in an alternative to provide nutrients to the crops, allowing an uniform distribution of elements required at low levels, as zinc and copper. The supply of those micronutrients is crucial on the achievement of higher yields for maize crop (Zea mays L.) in Brazil, due to the low levels of those elements in soils destined for this crop in the country. This study aims to verify the effects of maize seed treatment with zinc oxide (ZnO) and copper carbonate (CuCO3) on seed quality and initial development of corn plants. Thus, seeds of the hybrid 2B688Hx differing in size and vigor will be used, with two lots containing seeds size 24, with higher and lower vigor, and two lots containing seeds size 20, also with higher and lower vigor. The treatments will consist of two doses of ZnO + CuCO3, two doses of ZnO, two doses of CuCO3 and non-treated. Seed quality will be assessed along five periods by germination test, first count of germination, seedling emergence on sand, seedling emergence index, computer analysis of seedlings (SVIS®) and cold test. On the first period of evaluation, the dry matter of seedlings roots and aerial part will be weighted, followed by the determination of zinc and copper content on those tissues. The data will provide information about the effects of corn seed treatment with zinc and copper, allowing the comparison of results obtained from lots with different seed sizes and physiological potential.

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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)
MARCOS ALTOMANI NEVES DIAS; SILVIO MOURE CICERO. Effect of copper carbonate and zinc oxide applied to seeds on copper and zinc uptake by maize seedlings. Bragantia, v. 75, n. 3, p. 286-291, . (12/05598-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
DIAS, Marcos Altomani Neves. Maize seed treatment with zinc and copper. 2014. Master's Dissertation - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.

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