Description:
RSD1978004PL002 X RSD1978004PL004 = 78-4-2 X 78-4-4; controlled pollination of P sylvestris at USDA-IDRS, Brawley, California, made by C Corbett under direction of JB Carpenter. Controlled pollination made in order to propagate P sylvestris for move to CVARS (since no offshoots produced by P sylvestris). See RSD 1978003 and RSD 1978004 for further information on parent trees.