Dormant seeds are stimulated to sprout by the effect of?

The effect of water is what stimulates dormant seeds to sprout. When a dormant seed comes into contact with water, it absorbs the water and begins to swell. This swelling causes the seed coat to rupture and the radicle, or first root, to emerge. The radicle then grows down into the soil, anchoring the plant and absorbing nutrients. The hypocotyl, or stem, then emerges from the seed and grows up towards the sun. The cotyledons, or first leaves, then emerge from the seed and begin to photosynthesize, producing food for the plant.