Ralph Merrill Caldwell (1903 to 1976) was an American plant breeder, mycologist and plant pathologist, born in Brookings, South Dakota. Through his work with the US Department of Agriculture and Purdue University he developed disease-resistant cultivars of a wide variety of plants, among them widely grown wheat cultivars. He took a bachelor degree in agronomy at South Dakota State University and a doctorate in plant pathology at the University of Wisconsin in 1929, led barberry eradication for the Department of Agriculture in Wisconsin, and from 1937 to 1950 headed the Department of Botany and Plant Pathology at Purdue before returning to full-time research on cereal breeding. He was a fellow of the American Phytopathological Society, the American Society of Agronomy and the Crop Science Society of America.
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Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota – November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
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1. Ralph Merrill Caldwell (Wikipedia)
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Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
Lead, death date
Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
Lead, occupation
Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
Lead, nationality
Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
Works In: Plant Breeding, Lead, field of work
Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
Works In: Plant Pathology, Lead, field of work
Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
In Group: Plant Breeding and Genetics, Lead, group placement
Ralph Merrill Caldwell (June 27, 1903, Brookings, South Dakota, November 2, 1976, College Station, Texas) was an American plant breeder, mycologist, and plant pathologist
Member Of: United States Department of Agriculture, Biography, institution
Through his work with the U.S. Department of Agriculture and Purdue University
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