Those are the biggest 1 week old transplants that I have ever seen. How tall were they when you planted them out in the garden? Did you bury 80% of the plant in the ground?

I guessing that you had some big plants and just barely buried the root balls. Your plants are suffering from transplant shock and will have a tough time recovering because of the way they are planted. The huge plant is trying to grow but the root system can't keep up.

If my guess is wrong, let me know. It could be some other issues.

Good luck,

Gary

They were huge transplants... but they were also in huge pots. Hardly rootbound at all. It might well be transplant shock, but a) many of them have grown significantly in the last week and b) many other ones the same size or larger and are looking very good. I'm sure every plant is different and the wilting is understandable... but what's the browning all about?

I think you had a few that didn't like transplanting.
I do see new healthy growth on that pic 2. sometimes the bottoms are history but worry more about the new growth.
You might want to make a water circle to make sure the water stays near the plant. I bet you used to fill up the pot and let it soak in but now you dont have a lip to fill so you might be underwatering them.