Persistence and movement of paclobutrazol residues in a mango orchard soil.
Shalini L., Sharma D.
Author Affiliation: Advenus Therapeutics, 21 and 22, Peenya Ind. Area, Phase 2, Bangalore 560 058, India.
Bulletin of Environmental Contamination and Toxicology 76 : 930-934
Abstract : The persistence and mobility of paclobutrazol in 5-year-old mango cv. Totapuri orchards in Bangalore, Karnataka, India were studied. The soil in the orchard was sampled at 0-15, 15-30, 30-45 and 45-60 cm depth at 1 h intervals after the application of paclobutrazol and 5, 10, 15, 30, 60, 120, 150, 180 and 210 days after the treatment. The paclobutrazol residues in the soil at fortification rates of 0.01 and 0.1 µg/g were 85.4-89.2%. paclobutrazol residues in the soil surface decreased with time. The half-life of paclobutrazol residues in the soil surface varied from 30.7 to 29.7 days with high and low concentrations of paclobutrazol, respectively.