Overview
- The peer-reviewed paper, published Wednesday in Scientific Reports, reports rice seeds sprouted 30% to 40% faster when exposed to rain-like sound.
- In lab tubs, the team tested about 8,000 submerged rice seeds under dripping water that produced rain-like vibrations measured by hydrophones.
- Field recordings from puddles and ponds matched the lab signals, tying the experiments to conditions seeds experience during real storms.
- The authors propose that raindrop-driven vibrations dislodge statoliths, dense gravity-sensing particles inside seed cells, which signals germination to begin.
- Because water and soil carry sound better than air, a nearby drop can create pressures at a seed comparable to standing a few meters from a jet engine.