Final answer:
Centipedegrass does not have better submersion tolerance than St. Augustinegrass, and the statement is false. Different grass species adapt to submersion in various ways, but there is no direct comparison provided for these two species.
Step-by-step explanation:
The statement that Centipedegrass has superb submersion tolerance than St. Augustinegrass is false. Submersion tolerance refers to a plant's ability to survive underwater for extended periods, and grasses vary considerably in this trait. Following a general study of plant responses to waterlogged conditions, it can be inferred that different grass species have developed various mechanisms to cope with such stress, including the modification of their roots and the formation of aerenchyma, enhanced gas diffusion, and changes in enzymatic activities such as peroxidase. Yet, there is no specific evidence within the provided reference material to indicate the comparative submersion tolerance between Centipedegrass and St. Augustinegrass.