IJCRAR is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCRAR Articles.

INDEXED IN INDEX COPERNICUS - ICI Journals Master List 2016 - IJCRAR--ICV 2016: 81.15 For more details click here

Abstract            Volume:13  Issue-10  Year-2025         Original Research Articles


Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcret@gmail.com

Genotypic Variation in Maize Response to Post-Emergence Herbicides: Implications for Yield and Tolerance
Gemechu Getachew1*, Temesgen Deresa1, Begizew Gola1, Temesgen Chibsa1 and Steven Runo2
1Ethiopian Agricultural Research Institute (EIAR), P.O. Box 2003, Addis Ababa, Ethiopia 2Kenyatta University, Departement of Biochemistry and Biotechnology, Nairobi, Kenya
*Corresponding author
Abstract:

Post-emergence herbicides, Adengo SC 465 and Auxo EC 337, significantly influenced grain yield and phytotoxicity in maize inbred lines, with Adengo causing greater yield reductions (30.6%) than Auxo (16.5%). Grain yield was negatively correlated with phytotoxicity, with tolerant genotypes maintaining stable yields and sensitive lines exhibiting severe injury and substantial yield loss. Differential responses among genotypes were attributed to the herbicides’ active ingredients, safener effectiveness, and environmental conditions. Pronounced genotypic variation indicates exploitable genetic diversity for breeding herbicide-tolerant maize. Integrating tolerant lines with optimized application timing, effective weed management, and complementary agronomic practices is crucial to sustain productivity and reduce labor in smallholder systems. These findings provide insights for improving maize resilience under herbicide stress in Ethiopian agroecologies and similar environments.

Keywords: Maize Inbred lines, Post-emergence herbicides, Phytotoxicity, Genotype variation, Grain Yield.
Download this article as Download

How to cite this article:

Gemechu Getachew, Temesgen Deresa, Begizew Gola, Temesgen Chibsa and Steven Runo. 2025. Genotypic Variation in Maize Response to Post-Emergence Herbicides: Implications for Yield and Tolerance.Int.J.Curr.Res.Aca.Rev. 13(10): 134-146
doi: https://doi.org/10.20546/ijcrar.2025.1310.010
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.


Quick Navigation


Quick Navigation