Perhaps high level of potassium or the seeds you have saved are a new cultivar.
Can you send me some of those seeds or descendants of them. Maybe a specific soil microbe/stressor
Iterations are fine, we don't have to be perfect
My 2nd Location:Florida HardinessZone:10 AHS:10 GDD:8500 Rainfall:2in/mth winter, 8in/mth summer, Soil:Sand pH8 Flat
We can fix it! We just need some baling wire, some WD-40, a bit of duct tape and this tiny ad: