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Fifty Generations of Selection for Protein and Oil in Corn 1
Author(s) -
Woodworth C. M.,
Leng Earl R.,
Jugenheimer R. W.
Publication year - 1952
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1952.00021962004400020002x
Subject(s) - agricultural experiment station , library science , citation , selection (genetic algorithm) , engineering , agriculture , geography , archaeology , computer science , artificial intelligence
IFTY generations of selection at the Illinois Station for F h i g h and low protein and high and low oil in corn were completed with the 1949 crop. This experiment was started in 1896 in the Burr White variety by Dr. Cyril G. Hopkins. It was continued to 1921 by Dr. L. H. Smith and his co-workers. Direction of the project was assumed by the senior author in 1921 and continued to the present time with the help of various persons who have been on the Plant Breeding staff since that time. The work was suspended for 3 years, 1942, 1943, and 1944, because of lack of manpower during the war. However, seed of the 1941 crop was held over and used to plant the 1945 crop. Few adequate reports of progress on this experiment have been published especially during the latter part of the 50-generation period. The first report was published by Hopkins ( 3 ) in 1899 after 3 generations; the second by Smith (4) in 1908, after 10 generations; and the third by Winter (6) in 1929, after 2 8 generations. Progress on generations 29 to 50 inclusive has been described in the annual reports of the Illinois Agricultural Experiment Station. Charts showing progress of selection for generations 1 to 47 inclusive were presented by Woodworth and Jugenheimer (7). The purpose of this paper is to give in brief form the main results and trends of selection for protein and oil