[blam]

I've read that one of the most important changes was the one that made the wheat grains stay on the stalk instead of falling off prior to harvest.

[Renfield]

"...I've read that one of the most important changes was the one that made the wheat grains stay on the stalk instead of falling off prior to harvest...."

This is hardly surprising. People garnish what they may. They save a portion of the harvest for seed, and they will harvest more of what stays on the stalk, than what shatters.