Salt-Tolerant Crops: Time to Deliver.

Area of Science:

• Agricultural Science
• Plant Physiology
• Genetics

Background:

• Significant advances in understanding crop salinity tolerance exist.
• However, practical applications to enhance crop salt tolerance remain limited.

Purpose of the Study:

• To highlight the gap between scientific understanding and practical application of salinity tolerance in crops.
• To propose effective strategies for improving crop salt tolerance for farmers.

Main Methods:

• Review of historical approaches: intraspecific variation and introgression from relatives.
• Discussion of limitations: trait introgression difficulties, yield penalties, and breeding priorities.
• Exploration of alternative strategies: grafting and domestication of wild species.

Main Results:

• Traditional breeding methods for salt tolerance often face challenges.
• Salinity is not a primary focus for many crop breeders, hindering progress.
• Grafting and domestication present feasible, near-term solutions.

Conclusions:

• There is a critical need to translate research on salinity tolerance into practical solutions for farmers.
• Revisiting techniques like grafting with salt-tolerant rootstocks is recommended.
• Domesticating wild, salt-tolerant species offers a viable future pathway for crop improvement.