Is the statement "The germination temperature for peas and radishes is +50 °C" true or false?

The statement is false.

A temperature of +50 °C is generally too high for the germination of most seeds, including peas and radishes, and would likely kill the embryo. Typical optimal germination temperatures for peas are around 15-20 °C, and for radishes, around 15-25 °C.