Figure 3.

Germination response of petunia seeds from greenhouse or tent plants to dehydration, salinity, and high-temperature treatment. (A) Germination percentage of seeds from greenhouse or tent plants under polyethylene glycol (PEG), NaCl, and high-temperature treatment. (B–G) Representative images of seed germination on a 1% agar plate infused with PEG8000 (B,C), with NaCl (D,E), or at different high temperatures (F,G). The percentage of germination was recorded after a 7-day imbibition. Six replications, with 25 seeds for each replication (n = 150 total), from greenhouse or tent plants were applied to each treatment. The vertical bars represent the mean ± standard error. ** Significant difference between seeds from greenhouse and tent plants under the same germination condition at p < 0.01 (t-test).