Peliculização de sementes de tomate associada ao paclobutrazol
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Data
2014
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Resumo
Seed treatment with paclobutrazol (PBZ) should be enhanced and coating technologies, such as film coating can be applied
uniformly and promising to fix this regulator in the seed coat without allowing a contact damaging the embryo. The objective
of this research was to determine the effects of film coating with paclobutrazol on physiological potential of tomato seeds and
its implications on the growth seedlings. A randomized experiment design was applied in a factorial 2×4 scheme, presence or
absence of the polymer coating Disco AG Red L-203® (0 or 150 ml kg –1 seed) and four concentrations of paclobutrazol – PBZ
(0, 38,5 , 76,9 and 115,4 mg L –1 ). The interaction between factors (film coating x paclobutrazol concentrations) occurred only for
variable electrical conductivity. Regardless of the concentration, paclobutrazol reduced germination, seedling emergence, height,
leaf area and led to an increase in the detection of chlorophyll. Film coating does not interfere with the action of paclobutrazol
on the seeds. Paclobutrazol is effective in seedling growth control, but affect the germination and seed vigor.
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Solanum lycopersicum L., Germinação, Recobrimento de sementes, Regulador de crescimento, Vigor, Solanum lycopersicum L., Seed coating, Germination, Growth regulators, Vigor
Citação
MELO, Aniela Pilar Campos de; SELEGUINI, Alexsander; VELOSO, Valquiria da Rocha Santos. Peliculização de sementes de tomate associada ao paclobutrazol. Bragantia, São Paulo, v. 73, n. 2, p. 123-129, 2014.