In the U.S. Western found that Calendula percent germination temperatures 20° c, germination percentage is 80 percent, and at temperatures above 35° c, make the slower Calendula germination percentage (Eberle et al.,)
In the western US Marigold is found to have the highest percentage of germination temperature is 20 degrees Celsius with 80 percent and the percentage of germination at temperatures above 35 degrees Celsius, making the percentage of seed germination is slow (Eberle et al., 2013).
In the western society of the United States. Marigold is found that percentage germination temperature of 20 C germination is 80% and at higher temperature 35 C percentage germination of marigold slowly. (Eberle et al, 2013).