90 years ago: the beginning of hybrid maize.
Crow
J F
JF
Laboratory of Genetics, University of Wisconsin, Madison 53706, USA.
D005823:Genetics / Q000266:history*; D049673:History, 20th Century; D006824:Hybridization, Genetic; D014481:United States; D003313:Zea mays / Q000235:genetics / Q000266:history*