“…Line 'IJR' (Indeterminate Jamaica Red = PI 163122) was first recognized as being heat tolerant in Puerto Rico (Baiges et al, 1996). Recent lines, purposely bred for stable yield response across varied high day and night temperature environments, include: TARS-HT1 and -HT2 kidneys (Porch et al, 2010), TARS-MST1 black , 'Verano' (Beaver et al, 2008), 'Bella' (Beaver et al, 2018a), and snap beans (Wasonga et al, 2010). However, many beans bred and released in Puerto Rico for other traits (described above) exhibit tolerance to high temperatures because it was a common stress in the selection environments: L-226-10 and L-227-1 (Freytag et al, 1985), 'Verano' (Beaver et al, 2008), and 'Badillo' (Beaver et al, 2010).…”