Inspired by this comic by Azul Crescent: https://old.reddit.com/r/factorio/comments/1ifugy3/comicsuggestion_gleba_productivity/

Artwork brazenly stolen from said comic

Adds an infinitely researchable tech (like Processing Unit Productivity) to increase the output of Yumako and Jellynut fruit processing.
Note: this increases both the amount of mash/jelly produced, as well as the amount of seeds