Fig. 2. Pollen germination in populations derived from oil palm interspecific hybrids (E.oleifera x E. guineensis). A single line pointing the box indicates self pollination. Data with asterisk was obtained from Chaves (1989). Bx1, 2 and 3 are the backcrosses of the OxG hybrid toward E.guineensis. F1 and 2 are the first and second generation. Bol x 1 is the backcross of Bx0 toward E.oleifera.