Ivan TUMANOV, USSR Plant physiologist. Professor; associate, Institute of Plant Physiology, USSR Academy of Science, since 1947; corresponding member, USSR Academy of Science; since 1953.
TUMANOV, Ivan was born in 1894.
1923 graduated Kiev Agriculture Institute.
1925-1942 at All-Union Institute of Phytoculture, Leningrad. Since 1940 at Institute of Plant Physiology, USSR, Academy, of Science. Main works deal with winterhardiness, drought-resistance, water regime and fruitfulness of agricultural crops.
Initiated experimental study of physiological nature of damping, leaching and destruction of plants under an ice crust.