Effects of herbicides on seed germination and control of Pennisetum polystachion (L.) schult


Citation

Ahmad Faiz M. A., . Effects of herbicides on seed germination and control of Pennisetum polystachion (L.) schult. pp. 120-130. ISSN 1511-1768

Abstract

Studies were carried out in Petri dishes to identify herbicides which could eventually inhibit seed germination of Pennisetum polystachion (L.) Schult. Amongst the pre-emergence herbicides ametryn was the most effective compared with alachlor metolachlor oxyfluorfen imazethapyr and diuron while amongst the contact herbicides paraquat and glufosinate ammonium were more effective than monosodium methanearsonate (MSMA) and sodium chlorate. Amongst the post-emergence herbicides imazapyr was more effective than glyhosate isopropylamine and glyphosate trimesium while triclopyr was more effective than 2 4-D dimethylamine bentazone fluroxypyr metsulfuron methyl and dicamha. In field trials minimum effective rates for the kill of P. polystachion were 1.44 kg ae/ha for glyphosate isopropylammine 1.08 kg ae/ha for glyphosate trimesium 0.5 kg ae/ha for imazapyr and 2.0 kg ai/ha for MSMA. Glufosinate ammonium was almost as effective as pre-mixed glyphosate isopropylamine ammonium sulphate in killing the weed and these herbicides were more effective than paraquat pre-mixed paraquat diuron and slashing.


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Abstract

Studies were carried out in Petri dishes to identify herbicides which could eventually inhibit seed germination of Pennisetum polystachion (L.) Schult. Amongst the pre-emergence herbicides ametryn was the most effective compared with alachlor metolachlor oxyfluorfen imazethapyr and diuron while amongst the contact herbicides paraquat and glufosinate ammonium were more effective than monosodium methanearsonate (MSMA) and sodium chlorate. Amongst the post-emergence herbicides imazapyr was more effective than glyhosate isopropylamine and glyphosate trimesium while triclopyr was more effective than 2 4-D dimethylamine bentazone fluroxypyr metsulfuron methyl and dicamha. In field trials minimum effective rates for the kill of P. polystachion were 1.44 kg ae/ha for glyphosate isopropylammine 1.08 kg ae/ha for glyphosate trimesium 0.5 kg ae/ha for imazapyr and 2.0 kg ai/ha for MSMA. Glufosinate ammonium was almost as effective as pre-mixed glyphosate isopropylamine ammonium sulphate in killing the weed and these herbicides were more effective than paraquat pre-mixed paraquat diuron and slashing.

Additional Metadata

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Item Type: Article
AGROVOC Term: Pennisetum
AGROVOC Term: Weeds
AGROVOC Term: Seed germination
AGROVOC Term: Herbicides
AGROVOC Term: Ametryn
AGROVOC Term: Weed control
AGROVOC Term: Paraquat
AGROVOC Term: Glufosinate ammonium
AGROVOC Term: Sodium chlorate
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:28
URI: http://webagris.upm.edu.my/id/eprint/23296

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