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AGRI 2022

Sarker Mohammad Rezaul Karim

Sarker Mohammad Rezaul Karim, Speaker at Agriculture Conferences
Universiti Putra Malaysia, Malaysia
Title : Allelochemicals in Rice - A Biochemical Tool for Defensing Against Weeds


Rice is a key crop for meeting global food demand and ensuring food security. However, the crop has been facing great problem to combat the weed problem. Synthetic herbicides, pose a severe threat to the human health and agro-ecosystems. Allelochemicals for using as bioherbicides, are powerful tools for biological weed management. The dynamics of plant species in various situations are also determined by allelopathy. Phenolics and momilactones are the most common allelochemicals responsible for herbicidal effects. The allelochemical dispersion is influenced not only by crop variety but also by climatic conditions. This study insights the concepts of allelopathy and allelochemicals, types of allelochemicals, techniques of investigating allelopathic potential in rice, modes of action of allelochemicals, pathways of allelochemical production in rice, biosynthesis of allelochemicals in rice, factors influencing the production of allelochemicals in plants, genetical manipulation to develop allelopathic traits in rice, significance of rice allelopathy in sustainable agriculture etc. Understanding this biological phenomenon may thus aid in the development of new and novel weed-control tactics while allowing farmers to manage weeds in an environmentally friendly manner.


Professor Dr. S. M. Rezaul Karim is an Agronomist with specialization in Weed Science having teaching and research experience of more than 35 years.  Prof. Karim obtained his M. Sc. Ag. in Agronomy from Bangladesh Agricultural University, Mymensingh in 1981, M. Phil from University of Reading, England, UK in 1991, PhD from University of Aberdeen, Scotland, UK in 1999.  He is an author of five books of Weed Science and three book chapters in the same discipline. He has published more than 110 papers in reputed journals. Prof. Karim joined the Universiti Putra Malaysia as IOI Chair on 12 November 2021.

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