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Effect of glufosinate-ammonium, glycophosphate and imazapyr herbicides at two spraying volumes on Imperata cylindrica (L.) Raeuschel


Citation

Mohamad, Rosli and Awang, Yahya and Jusoff, Muhammad Saizam and Puteh, Adam (2011) Effect of glufosinate-ammonium, glycophosphate and imazapyr herbicides at two spraying volumes on Imperata cylindrica (L.) Raeuschel. Journal of Food, Agriculture and Environment, 9 (3&4). pp. 854-857. ISSN 1459-0255; ESSN: 1459-0263

Abstract

Imperata cylindrica (L.) Raeuschel is a problematic weed of the tropical region which causes significant losses in cultivated and non-cultivated areas, and is difficult to control. A field study was conducted to evaluate the effectiveness of glufosinate-ammonium, glyphosate and imazapyr herbicides on a stand of the weed in the field. The herbicide treatments were applied at their recommended field rates (glufosinate-ammonium at 3 kg a.i. ha-1; glyphosate at 1.65 kg a.e. ha-1; imazapyr at 0.75 kg a.e. ha-1), at two spray volumes of 400 and 800 L ha-1. Visual observation on foliage kill was related to the tiller number/unit area and mass production of the green foliage and fresh rhizomes, and the short-term plant succession pattern was also evaluated. Spray volumes of 400 and 800 L ha-1 did not influence the effectiveness of the herbicides on the weeds, however, significant kill (>80% kill) of the foliage was observed for each herbicide when compared with the control. Glufosinate-ammonium caused fast kill (within 1 week after treatment (wat)) of I. cylindrica foliage, but plant regeneration was faster (within 10 wat) than treatments with glyphosate or imazapyr which killed both the foliage and rhizomes (within 3 and 13 wat, respectively), resulting in longer control period and minimal regrowth of the weed. Regeneration of other plant species was much less in imazapyr treatment compared with those of the glyphosate or glufosinate-ammonium. Plants regenerated were mostly of the broadleaf species.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: WFL Publisher
Keywords: Herbicides effectiveness; Imperata cylindrica; Glufosinate-ammonium; Glyphosphate; Imazapyr
Depositing User: Nur Farahin Ramli
Date Deposited: 29 Nov 2013 02:05
Last Modified: 03 Nov 2015 00:46
URI: http://psasir.upm.edu.my/id/eprint/23659
Statistic Details: View Download Statistic

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