What's Up With My Mater Plants?

Ok here you bees. No critters on um. No withered up leaves. They look good. Just not many maters.
This is the one with the most fruit. It has probably 5-7 total but the ones in the picture are the biggest.
MATER1.JPG
Here's the bigger fruits on the above plant.
MATER1 A.JPG

Here's mater plant #2. It has probably the same amount of fruit, but none are any bigger than the next close up.
MATER2.JPG
Here is the closeup of its fruit. It has several , but this is the largest.
MATER2 A.JPG