e-ISSN 2231-8542
ISSN 1511-3701

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Chemical Weed Control in Direct Seeded Rice: The Evaluation of Selected Herbicides for Phytotoxicity to the Rice Plant

Azmi Man and E.S. Lim

Pertanika Journal of Tropical Agricultural Science, Volume 9, Issue 1, April 1986

Keywords: Herbicide; Phytotoxicity; 2,4-D amine; 2,4-DIBE-butachlor, butachlor; benthiocarb; molinate.

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The phytotoxic effect of 2,4-D amine, 2,4-DIBE-butachlor, butachlor, benthiocarb and molinate on rice plants were assessed. Applications of the herbicides at different time resulted in severe phytotoxicity when applied before seeding. Early postemergent applications were also generally phytotoxic, adversely affecting plant growth and grain yield. Late applications 8 to 10 weeks after seeding were least injurious. Among the herbicides, molinate was the least phytotoxic

ISSN 1511-3701

e-ISSN 2231-8542

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