TY - BOOK AU - Licy J AU - Meenakumari T AU - Meenatoor J R AU - Nazeer M A AU - Premakumari D AU - Saraswathyamma C K TI - Genetic parameters and heterosis in rubber (Hevea brasiliensis) Muell.Arg.V. Hybrid vigour for yield and yield components among the RRII 400 series clones in small scale evaluation PY - 2003/// PB - Indian Journal of Natural Rubber Research KW - Clonal variation KW - Hybrid clones KW - Standard heterosis ER -