TY - BOOK AU - Darussamin Asril AU - Haris Nurhaimi AU - Suharyanto TI - Several biotechnological techniques to improve genetic characteristics of rubber PB - In: Prosidings of the Lokakarya Nasional Pemuliaan Tanaman Karet, Medan 1992; p227-238 KW - Anther culture KW - Genetic variation KW - Rubber ER -