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Published online 8 September 2006
Published in Crop Sci 46:2263-2269 (2006)
© 2006 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Seeds

The Delivery System for Crop Science

Dennis M. TeKrony*

Dep. of Plant and Soil Science, Univ. of Kentucky, 429 Plant Science Bldg., 1405 Veterans Dr., Lexington, KY 40546-0321


Figure 1
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Fig. 1. The universities (States) with seed science graduate programs in the USA: 1960 (Oregon State, Mississippi State, Iowa State, and Cornell; additional programs added in 1980 (California-Davis, Washington State, Colorado State, Montana State, Texas Tech, Louisiana State, Alabama A&M, Florida, Kentucky, Ohio State, Michigan State); additional programs in 1990 (Brigham Young, Virginia Tech) and the total number of faculty in all universities for each year.

 

Figure 2
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Fig. 2. The number of MS and PhD graduates from seed science graduate programs in each state from 1990 to 2000 and the total from all states for the decade.

 

Figure 3
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Fig. 3. Average yields in USA for soybean, corn, cotton and wheat from 1955 to 2004. Data from annual issues of Crop Production (USDA).

 

Figure 4
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Fig. 4. Average retail seed costs (dollars/unit, not adjusted for inflation) for all corn, wheat, soybean (A) and cotton and alfalfa (B) seed planted in USA from 1955 to 2004. Unit: soybean, wheat = bushel; corn = 80 000 kernels; cotton = 100 pounds, alfalfa = pound.

 

Figure 5
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Fig. 5. The total number of seed science graduate faculty in each state university in 2005 and the MS and PhD graduates from these programs (in parenthesis) for each state from 2000 to 2005. The total graduates from all states for the 5 yr was 59.

 

Figure 6
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Fig. 6. Seed expenditures' share of total cash operating costs (dollars/planted acre) for corn, soybean, wheat, and cotton from 1975–2004; www.ers.usda.gov/Data/CostsAndReturns/.

 

Figure 7
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Fig. 7. The applications of biotechnology in agriculture will flow from various areas of research as input and output traits through seed as a delivery system to the farmer. (With permission from Dr. Kent J. Bradford, University of California–Davis.)

 





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