| Paclobutrazol
residues in the fruits of mango cultivars. |
| Manish
Srivastava,Sant Ram |
| G.B. Pant
University of Agriculture & Technology, Pantnagar-263145, U.P., India |
| The residual
effects of paclobutrazol were investigated in 1996-97 after application
in September and October 1994 and 1995. Paclobutrazol was applied as a
soil drench under the trees of mango cultivars Dashehari, Langra, Chausa
and Fazri. The fruits and seeds contained lower levels of paclobutrazol
than internationally accepted standards (0.5 mg/kg fruit). Evidence was
also produced for an interaction between gibberellin and paclobutrazol
in lettuce hypocotyl bioassays and benzyladenine and paclobutrazol in
radish cotyledon enlargement tests which showed that paclobutrazol
counteracts gibberellin activity in tissues and also interferes with
gibberellin applications. Paclobutrazol also stimulated radish
cotyledon enlargement at low concentrations without counteracting
benzyladenine activity. |
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