What is wrong with my Pink ponderosa tomato

Question

I have a garden of tomatoes only. They’re all doing good except my Ponderosa plant. It is yellowing at the bottom of the plant badly.

Answer 1

Yellowing can happen for many reasons. First check should be is the plant getting enough water? This article will go over some other reasons for yellowing leaves:
https://www.gardeningknowhow.com/edible/vegetables/tomato/yellow-tomato-leaves.htm