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Subjects
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United States (4,893)
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Malus domestica (4,066)
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agricultural statistics (3,200)
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cultivars (2,968)
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genetic variation (2,615)
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Phaseolus vulgaris (2,418)
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crop yield (2,332)
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disease resistance (2,255)
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plant pathogenic fungi (2,020)
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Zea mays (2,015)
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genes (1,853)
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corn (1,816)
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nucleotide sequences (1,651)
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insect pests (1,598)
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genotype (1,586)
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mortality (1,584)
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genetic markers (1,557)
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literature reviews (1,474)
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Triticum aestivum (1,435)
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plant breeding (1,426)
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Authors
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Passmore, Deborah Griscom, 1840-1911 (1,525)
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Newton, Amanda Almira, ca. 1860-1943 (1,213)
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Arnold, Mary Daisy, ca. 1873-1955 (1,060)
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Steadman, Royal Charles, b. 1875 (892)
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United States. Dept. of Agriculture. Economic Research Service. (822)
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Shull, James Marion, 1872-1948 (777)
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Schutt, Ellen Isham, 1873-1955 (720)
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United States Dept. of Agriculture. Economic Research Service. (621)
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Heiges, Bertha (602)
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Dubey, J.P. (343)
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Year
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2008 (4,974)
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2009 (4,567)
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2006 (3,905)
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2007 (3,747)
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2005 (3,412)
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2010 (3,400)
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2004 (2,802)
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2003 (2,115)
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2002 (1,669)
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2011 (1,427)
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