BUD DEVELOPMENT IN THE RHIZOMES OF IMPERATA CYLINDRICA (L.) BEAUV. AFTER GLYPHOSATE TREATMENT

S. A. LEE

Abstract

Glyphosate at 3.3, 6.7 and 10.0 kg a.i./ha provided very effective kill of the aerial shoots. Extensive decay of rhizomes occurred in plots treated with glyphosate at 6.7 and 10.0 kilogrammes. Six weeks after foliar treatment, rhizomes from untreated and glyphosate-treated plots were sectioned and placed in petri dishes. Twenty-four days after sectioning, rhizome sections from plots treated with glyphosate at 3.3,6.7 and 10.0 kg a.i./ha showed a significant reduction in the number of new rhizomes and shoots when compared to the untreated control. There was a significant reduction in the total length of new rhizomes and shoots by all glyphosate treatments.

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