A Physio-Morphological Trait-Based Approach for Breeding Drought Tolerant Wheat.

Area of Science:

• Agricultural Science
• Plant Breeding
• Climate Change Adaptation

Background:

• Drought significantly impacts global wheat production, threatening food security.
• Developing high-yielding, drought-tolerant wheat varieties is a critical research priority, especially with climate change.
• Current breeding selection based on grain yield is complex and time-consuming.

Purpose of the Study:

• To identify key physio-morphological traits for targeting drought tolerance in wheat at various growth stages.
• To review advancements in high-throughput phenotyping for assessing drought tolerance in wheat under field conditions.
• To propose integrating these strategies into breeding programs for climate change mitigation.

Main Methods:

• Literature review of physio-morphological traits relevant to wheat drought tolerance.
• Analysis of recent developments in high-throughput phenotyping platforms (HTPPs).
• Discussion on integrating phenotyping data with breeding strategies.

Main Results:

• Specific physio-morphological traits can be targeted at early growth stages for efficient drought tolerance selection.
• High-throughput phenotyping platforms offer advanced capabilities for field-based drought tolerance assessment.
• Genomic and molecular approaches benefit significantly from high-quality phenotypic data.

Conclusions:

• A growth-stage-based, high-throughput phenotyping approach is essential for improving drought-tolerant wheat breeding efficiency.
• Integrating early-stage trait selection with advanced phenotyping can accelerate the development of climate-resilient wheat.
• Further research and application of these integrated strategies are needed to combat drought impacts on wheat production.