Newfound Rice Gene Shifts Flowering By 1.5 Hours To Dodge Heat Damage

Breakthrough Gene Offers Rice Relief from Heat Stress

As rising temperatures linked to El Niño and extended dry spells threaten rice yields, researchers from Japan's National Agriculture and Food Research Organization (NARO), alongside other Japanese institutions and the International Rice Research Institute (IRRI), have made a significant discovery. They identified a gene named EMF3, or Early Morning Flowering 3, which enables rice plants to flower earlier in the day when temperatures are more favorable.

This timing adjustment allows rice to dodge heat stress during its critical flowering period, a phase crucial for grain development. By shifting flowering to the cooler early morning hours, the chances of reduced yields in tropical and subtropical regions diminish. The findings are detailed in the Plant Biotechnology Journal, highlighting a promising avenue for bolstering rice production amidst climate challenges.