Potato Tubers At Critical Water Stage

Considering how little water it has had, I was surprised to see tubers developing on stem branches (red) attached to the potted potato plant. Just shows how determined plants are to survive. Potato tubers are bulky short portions of underground stems.

True roots can also be seen. At this stage, these roots gather as much water as possible to support tuber growth. This is the critical stage in potato development, for water requirements. Limiting water at this stage will drastically reduce crop yield.