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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Measuring desirable and undesirable color in white and yellow food corn  [1995]

Floyd, C.D. (Texas AandM University, College Station, TX.); Rooney, L.W.; Bockholt, A.J.;

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Subjective field and objective nondestructive laboratory measurements of color in white and yellow corn were compared. L, a, b, and E color values were correlated to subjective field color grades by a trained observer. Physical factors that affect the variability of L, a, b and E color values such as position of the germ and adhering colored cob material were examined. Variability of objective measurements decreased when colored cob material was removed or the kernels were positioned with the germ facing away from the light source during color measurements. Pearson correlation coefficients between field color grades and L, a, b, and E color values were 0.54. Differences in endosperm hardness, pericarp thickness, and pericarp gloss between cultivars with the same subjective field ratings contributed to the low correlation values. The L, a, b, and E color values provide a general index of color especially yellow corn. Important subtle differences in color, particularly in white corn, were not accurately determined by these indices. Subjective evaluation of corn on the cob viewed in the field is the most effective method for selecting appropriate color corn
From the journal
Cereal chemistry (USA)
ISSN : 0009-0352

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
1997
Volume:
72
Issue:
5
Start Page:
488
End Page:
490
All titles:
"Measuring desirable and undesirable color in white and yellow food corn"@eng
Other:
"references"
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
1997
Volume:
72
Issue:
5
Start Page:
488
End Page:
490
All titles:
"Measuring desirable and undesirable color in white and yellow food corn"@eng
Other:
"references"