Results of the fourth international spring wheat yield nursery, 1967 -1968. - International Maize and Wheat Improvement Center; International Maize and Wheat Improvement Center (Mexico : International Maize and Wheat Improvement Center, 1971)
Includes bibliographical references.
Keywords: Wheat -- Varieties -- Tables -- Periodicals; Wheat -- Field experiments -- Tables -- Periodicals. -- Periodicals; Wheat -- Yields -- Tables -- Periodicals