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Revista Brasileira de Sementes
Print version ISSN 0101-3122
AVELAR, Suemar Alexandre Gonçalves et al. The use of film coating on the performance of treated corn seed. Rev. bras. sementes [online]. 2012, vol.34, n.2, pp.186-192. ISSN 0101-3122. http://dx.doi.org/10.1590/S0101-31222012000200001.
The main objective of seed coating technology using polymers is to improve the physical, physiological and sanitary characteristics of seed performance. The objectives of the present study were to determine: the plantability of corn seeds treated with insecticide, fungicide and graphite, covered with a film coating; the dust retention on treated corn seeds; and the leaching of applied products on corn seeds covered by a film coating. Seed plantability was determined by counting the skips and double seeds; dust was determined by using fiberglass paper in mg.100 g-1 of seeds; and the leaching was determined by collecting the material leached in a 10 cm layer of sand after irrigation. The following conclusions were made: seeds covered with film coating effectively reduce skips and double seeds; film coating effectively reduces the formation of dust from the seeds; film coated seeds minimize the leaching of the insecticide applied in seed treatment; and there are differences in effectiveness related to film coating type and dosage.
Keywords : polymer; plantability; dust; leaching.