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Drum priming of bell pepper seeds using plant bioregulator

Grant number: 13/11260-3
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): August 15, 2013
Effective date (End): August 14, 2014
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Principal Investigator:Julio Marcos Filho
Grantee:Clíssia Barboza Mastrangelo
Supervisor: Mark A. Bennett
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Research place: Ohio State University, Columbus, United States  
Associated to the scholarship:11/07842-1 - Priming of pepper seed with bioregulators, BP.DR


Irregular seedlings stands in the field is a limiting factor in commercial bell pepper production. Seed priming can become a promising alternative due to benefits on the germination and seedling emergence, especially under unfavorable environmental conditions. The combination of the priming technique with the addition of plant growth regulators may also result in additional benefit, favoring the antioxidant enzymes activity, seedlings development and stress tolerance. However, further studies should be conducted to the improvement of the technique with bioregulators and confirmation of its possible advantages. In order to evaluate the efficiency of drum priming of bell pepper seeds using bioregulator will be performed pre-germination treatments in 24-epibrassinolide on the germination and seed vigor. The research will be developed in the Department of Horticulture and Crop Science at The Ohio State University - OSU in Columbus, United States, using two bell pepper cultivars (AF-6 and AF-7) each represented respectively by three and four hybrid seed lots. Germination and seed vigor of the lots will be evaluated by germination, germination first count, emergence speed, seedling image analysis by software SVIS developed at the OSU, and the antioxidant response of seeds, determined by activity of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX), by using of the polyacrylamide gel electrophoresis technique (PAGE). (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)
DA SILVA, CLISSIA BARBOZA; MARCOS-FILHO, JULIO; JOURDAN, PABLO; BENNETT, MARK A.. Performance of Bell Pepper Seeds in Response to Drum Priming with Addition of 24-Epibrassinolide. HORTSCIENCE, v. 50, n. 6, p. 873-878, . (11/07842-1, 13/11260-3)

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