Genetic basis quantification for yield gain in maize hybrids
Research quantifies the genetic basis of yield gains in maize hybrids by examining physiological and agronomic factors. Using multi-location trials of historical hybrids, the study identifies traits that have contributed to past genetic improvements, analyzes source–sink optimization over time, and projects candidate traits for future yield gains to support maize breeding strategies and sustainable productivity improvements.
Overview
This research initiative aims to quantify the genetic basis of yield gains in maize hybrids by examining physiological and agronomic factors. By understanding the optimization of source–sink relationships over the years, the project seeks to identify traits that have historically contributed to genetic improvements and predict those that could enhance future yield gains. This study supports maize breeding strategies and sustainable productivity improvements.
Technical specifications
Research Objectives:
- Identify physiological and agronomic reasons for genetic gains in maize hybrids.
- Analyze potential conflicts in genetic optimization.
- Decipher traits that have historically contributed to yield improvements and project future traits.
Methodology:
- Selection of successful maize hybrids from various years.
- Procurement of parent genetic materials from NBPGR.
- Multi-location trials in respective adaptive seasons to gather comprehensive data.
- Genetic analysis to identify and characterize contributing traits and inbreds.
Technology readiness level
The research is currently at a Technology Readiness Level (TRL) of 2, indicating an early stage of development with primary focus on formulating the foundational research framework and initial validation through controlled studies.
About ICAR-Indian Agricultural Research Institute
ICAR-Indian Agricultural Research Institute is a national agricultural research university in New Delhi, pairing fundamental and applied discovery with postgraduate training. Industry partners access co-located experimental farms, controlled-environment facilities, and demonstration plots that support rapid prototyping and field validation. Situated in the National Capital Region and integrated with ICAR’s nationwide network, the institute enables multi-location trials and farmer-facing extension for scalable deployment. Research is backed by ICAR core funding and competitive national grants from agencies such as the Department of Biotechnology and the Department of Science and Technology, with technology transfer and incubation support facilitating licensing and joint development.
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