Same story for me: small fruits if no irrigation. Like this year.
But I must add that, as I have been partially cultivating under plastic in 2021 and 2022, I must say that even if not irrigated you can get nice yields : notably on watermelons, and on nearly all cucurbits, particularly the very warm loving crops like luffas… I don’t like plastic, because I believe it cannot be good on the long run, especially for the soil, but I believe that it could be very interesting for the first stage of a breeding project with outcrossers, when you create a grex, in this stage (generation 1 and 2 or so) where you want to generate loads of crosses, i.e. loads of fruits and seeds to reselect on. And too, it helps the crops become more precocious (2 to 3 weeks I would say), which may help doing two generations a year in that early stage …
I would have never think about that and even more suggested it if I had to buy some : here I get some used ones from farmers, prior they send it to thrash. They use it for silage. It is kind of unnatural, but depending of your stage of your breeding project, you may consider it as a way to accelerate it, and maybe do 2 generations in a year… Where I am at I believe it could not be possible, even if I was transplanting plants I would have grown very early in the season, but maybe you can.
EDIT 16 january 2024: after having red this thread To use plastic, or not, in growing - a wealth of academic sources I would say that I do not recommend plastic anymore and to anyone. That will too imply a shift in my personnal practice. Probably more hoeing and/or using more hay to mulch instead of my very usual and very practical plastic tarp.