TY - BOOK AU - Annamma Y AU - Marattukalam J G AU - Panikkar A O N TI - Evaluation of twelve clones of Hevea brasiliensis (Willed ex.Adr. De Juss.) Muell. Arg. of exotic and indigenous origin in an estate trial PB - Placrosym IX, Bangalore, 1990. Journal of Plantation Crops, 20 (Supplement): 207-211 KW - Hevea brasiliensis ER -