Step 1: About Ramdeo Mishra.
Ramdeo Mishra is regarded as the father of Indian Ecology. He made pioneering contributions in the field of plant ecology and ecosystem dynamics.
Step 2: His contributions.
He worked extensively on grassland and forest ecosystems, energy flow in ecosystems, and ecological succession. His research established ecology as a recognized discipline in India.
Step 3: Analyzing options.
(A) Ecology: Correct — Mishra is most prominently associated with ecology.
(B) Biotechnology: Incorrect — He did not work in biotechnology.
(C) Green revolution: Incorrect — That is linked to M.S. Swaminathan.
(D) Genetics: Incorrect — Genetics research was not his specialization.
Step 4: Conclusion.
Thus, the name of Ramdeo Mishra is associated with Ecology.