TY - BOOK AU - Annamma Y. AU - Licy J. AU - Panikkar A.O.N. TI - Genetic improvement in Hevea: Achievements, problems and perspectives PY - 1990/// PB - National Symposium on New trends in Crop Improvement of Perennial Species, 30 August 1990, Rubber Research Institute of India, Kottayam, India. KW - Crop improvement KW - Germplasm ER -