Weather
'Cold insurance' for crops: Researchers unlock 'on-demand' climate resilience
Key Points
Rapidly intensifying global climate instability is causing increasingly erratic temperature fluctuations. When sudden cold snaps strike during a crop's critical flowering window, they trigger irreversible pollen abortion, slashing yields of staple crops by 20% to 60%. Passive defenses offer minimal protection at a high cost, while breeding for continuous cold resistance often backfires by wasting vital energy under normal temperatures.
Rapidly intensifying global climate instability is causing increasingly erratic temperature fluctuations. When sudden cold snaps strike during a crop's critical flowering window, they trigger irreversible pollen abortion, slashing yields of staple crops by 20% to 60%. Passive defenses offer minimal protection at a high cost, while breeding for continuous cold resistance often backfires by wasting vital energy under normal temperatures. Shifting the breeding paradigm toward "on-demand" climate resilience—maintaining high yields in favorable seasons while securing stable performance under stress—is critical.