UPM Institutional Repository

Effect of Organosilicone Surfactant on Uptake and Translocation of Glyphosate in Pennisetum Polystachion L


Citation

Teo, Kee Chiong (1997) Effect of Organosilicone Surfactant on Uptake and Translocation of Glyphosate in Pennisetum Polystachion L. Masters thesis, Universiti Putra Malaysia.

Abstract

The effect of adding organosilicone surfactant, Pulse® on efficacy, uptake and translocation of glyphosate (Roundup®) for the control of Pennisetum polystachion was evaluated in the glasshouse. The dose-response study with glyphosate on 9-week old P. polystachion showed that at the rate of 1.08 kg a.e.iha, glyphosate caused complete mortality of the plants. It was estimated that dosage between 360 to 540 g a.e./ha gave 50% mortality. When Pulse® was added to the glyphosate spray solutions, the bioefficacy of glyphosate on P. polystachion increased as the concentration of Pulse® increased. The optimum concentration ofPulse® was 0.2 % w/w above which no significant increase in the bioefficacy was observed. Spray deposition studies using tlourescent tracer technique revealed that the mixture of glyphosate and Pulse® gave 42% higher spray deposition compared to glyphosate alone, thus contributing to the increase in bioefficacy of glyphosate observed in the mixture.


Download File

[img] PDF
FP_1997_1_A.pdf

Download (1MB)

Additional Metadata

Item Type: Thesis (Masters)
Subject: Glyphosate
Subject: Plant translocation
Subject: Pennisetum
Call Number: FP 1997 1
Chairman Supervisor: Associate Professor Dr. Dzolkhifli Omar
Divisions: Faculty of Agriculture
Depositing User: Mohd Nezeri Mohamad
Date Deposited: 07 Apr 2011 04:27
Last Modified: 07 Apr 2011 04:29
URI: http://psasir.upm.edu.my/id/eprint/10389
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item