Utilization of Parthenium Leaf Extract for the Effective Management of Purple Nutsedge (Cyperus rotundus)
Megha V Rajeev
Department of Agronomy, The Indian Agriculture College, Radhapuram, Tirunelveli – 627 111, India.
Iyarin Thanka Mahil E *
Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu – 641114, India.
Mohanapriya R
Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu – 641114, India.
Vishnuvardhan Reddy K
Department of Agronomy, The Indian Agriculture College, Radhapuram, Tirunelveli – 627 111, India.
*Author to whom correspondence should be addressed.
Abstract
Quick emergence of Cyperus create competition in the crop production which reduces the crop yield. Nowadays, the more importance is given to sustainable agriculture. Application of allelochemicals can control the Cyperus sustainably. With this notion, field experiment was conducted at The Indian Agriculture College, Radhapuram during summer 2023 to evaluate utilization of Parthenium leaf extract (PLE) for the effective management of Purple nutsedge (Cyperus rotundus). The experiment was laid out in completely randomized block design (CRD) having three replications and seven treatments viz., PLE @ 10%, 11%, 12%, 13%, PLE @ 10% + Glyphosate @ 1.5%, Glyphosate @ 1.5% alone and Control. Application of PLE @ 11% on 3, 10 and 20 DAP, significantly reduces the Cyperus rotundus germination percentage, dry weight, Vigour Index, total Cyperus length, tuber weight, moisture content, chlorophyll content and also improved the Cyperus control efficiency due to the presence of allelochemicals.
Keywords: Cyperus rotundus, allelochemicals, parthenium leaf extract, vigour index, cyperus control efficiency