Alfalfa from two different sections, one treated with a foliar spray designed to increase photosynthesis, and one untreated, show dramatically different leaf and stem structures.
The foliar application included calcium, magnesium, sulfur, iron, manganese, and boron.
As you can see in the photos, the treated alfalfa has a larger diameter stem, and the stem is also filled solid with pectins.
The treated alfalfa also has larger leaves with a higher width to length ratio and a higher leaf to stem ratio.
All of these factors contribute to improved forage digestibility and increased energy content.