The harvested flowers were immediately treated with UV-B radiation
for 60 min. The experiment included two levels of UV-B radiation:
(1) 0 μW cm−2 (CK), and (2) 400 μW cm−2 (UV-B). After UV-B
radiation, the flowers were put into the incubator (25 °C, 80% humidity)
for 6 h. Each treatment had five replications.