Image Number K7690-12
ARS plant pathologist Scott Abney (left) and research assistant Tom Richards check the growth of soybeans inoculated with field isolates of Phytophthora sojae. Disease reactions involving specific genes help identify the 45 races of P. sojae that have been reported in the United States.
Photo by Scott Bauer.
640 pixels wide: (k7690-12.jpg)