We know that plants are harmed by excess water. But plants survive under flooded condition. How are they able to manage excess water?

Solution:

Some rice types are able to withstand flooding. These rice cultivars have special characteristics that enable plants endure floods. In the event of a flood, the stems of these plants grow swiftly. This keeps a portion of the foliage above water at all times. The hollow stems allow gases to exchange. As a result, many rice cultivars can withstand flooding for up to one month.