Dissertations, Academic (Ph.D) 91 Rubber 55 Thesis (Ph.D)-Chemistry 42 Thesis (Ph.D)-Botany 22 Agroecological requirements 20 Hevea 16 Rubber plants 13 Polymers 11 Elastomers 10 Natural rubber 10 Latex 9 Plantation crops 9 Polymer technology 8 Thesis (Ph.D)-Polymer chemistry 8 Economics 7 Kerala 6 Rubber chemistry 6 Thermoplastics 6 rubber 6 Chemistry 5 Dissertations, Academic(Ph.D) 5 Polymerization 5 RUBBER 5 Rubber plantations-Kerala 5 Styrene-butadiene rubber 5 Vulcanization 5 Agricultural economics 4 Block copolymers 4 Chemical technology 4 Constitutional courts 4