An improved method of artificial pollination in corn. By G.N. Collins and J.H. Kempton.
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TextSeries: United States. Dept. of Agriculture. Bureau of Plant Industry. Circular ; no. 89Publication details: Washington, Govt. Print. Off., 1912.Description: 7 p. illus. 23 cmSubject(s): LOC classification: - SB19 .A33 no. 89
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