RESILIENCE STRATEGIES AND PATHWAYS TOWARD ROOT TO CAPSULE FOR SESAME YIELD ENHANCEMENT UNDER WATERLOGGED CONDITION
Climate Adaptation
Sesame—the seed behind your tahini and toasted noodle toppings—is quietly disappearing from flood-prone farms worldwide, and researchers are now racing to breed versions that can keep their roots when the rains don't drain.
When sesame fields flood, the plants essentially start to suffocate because their roots can't get enough oxygen. Some sesame plants fight back by growing special roots and changing their internal chemistry to handle the stress. Scientists are now using that natural resilience to breed tougher varieties and combine them with smarter planting techniques like raised beds and better drainage.
Key Findings
Sesame responds to waterlogging by forming adventitious roots and aerenchyma (air-channel tissue), which are structural adaptations that help maintain some oxygen flow to submerged roots.
Biochemical defenses—including antioxidant enzyme activation and accumulation of protective osmolyte compounds—are documented stress responses that partially explain varietal differences in flood survival.
Molecular breeding tools including gene mapping, marker-assisted selection, and gene editing are identified as viable pathways to develop waterlogging-resistant sesame cultivars, especially when paired with raised-bed planting and participatory farmer trials in flood-prone regions.
chevron_right Technical Summary
Sesame crops are highly vulnerable to waterlogging—too much water cuts off oxygen and can devastate yields. This review compiles the latest science on how sesame plants survive flooding and how breeders can develop tougher varieties using both genetic tools and smarter farming practices.
Abstract Preview
Abstract: Sesame is one of the oldest cultivated oilseeds in the world. Waterlogging stress severely hampers crop yields especially in areas with erratic rainfall and poor rainfall drainage system....
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Sesame is a plant in the genus Sesamum, also called benne. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds, which grow in pods. World production in 2024 was 6.7 million tonn...