Male sterility in flowering plant was first reported by___________________?
A. Stout (1917)
B. Koelreuter (1763)
C. Brewbaker (1810)
D. Gerstel (1900)
A. Stout (1917)
B. Koelreuter (1763)
C. Brewbaker (1810)
D. Gerstel (1900)