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United States Department of Agriculture

Agricultural Research Service

Title: Registration of 'nc 12c' Peanut

Authors
item Isleib, Thomas - NCSU
item Rice, Peter - NCSU
item Bailey, Jack - NCSU
item Mozingo, Robert - VA POLYTECHNICAL INSTIT
item Pattee, Harold

Submitted to: Crop Science
Publication Type: Germplasm Release
Publication Acceptance Date: February 28, 1997
Publication Date: N/A

Interpretive Summary: NC 12C is a virginia-type cultivar with the alternate branching pattern characteristic. Its growth habit is intermediate between bunch and runner-types. It has large seeds with a tan seed coat. It is resistant to Cylindrocladium black rot (CBR) comparable to that of the partially resistant cultivar NC 10C. NC 12C was selected from a cross made in 1984 between NC 7 and NC 9. Single plants were selected in the second generation on the basis of pod size and shape. Second generation families were harvested in bulk in the third and fourth generations. Single plants were selected in the fifth generation. NC 12C is derived from a single fifth generation plant and will be in the sixteenth generation when it becomes available to growers. Seed has been maintained in bulk since the last single-plant selection with some selection against a recurrent contaminant with light pink seed coat. Flavor attributes of roasted samples from the NCSU trials were evaluated by a trained sensory panel under the direction of USDA personnel. Adjusted to common values of roast color and fruity attribute, the flavor of NC 12C is comparable to NC 10C in the sweet, bitter, and roasted peanut attributes. The ratio of oleic to linoleic acid in the fatty acid profile of NC 12C was significantly higher than that of NC 10C but significantly lower than that of NC 7.

Technical Abstract: NC 12C is a virginia-type cultivar with the alternate branching pattern characteristic of Arachis hypogaea ssp. hypogaea var. hypogaea, growth habit intermediate between bunch and runner, large seeds (940 mg/seed) with tan testa, and resistance to Cylindrocladium black rot (CBR) comparable to that of the partially resistant cultivar NC 10C. NC 12C was selected from a cross made in 1984 between NC 7 and NC 9. Single plants were selected in the F2 generation on the basis of pod size and shape. F2-derived families were harvested in bulk in the F3 and F4 generations. Single plants were selected in the F5 generation. NC 12C is derived from a single F5 plant and will be in the F16 generation when it becomes available to growers. Seed has been maintained in bulk since the last single-plant selection with some selection against a recurrent contaminant with light pink testa. Flavor attributes of roasted samples from the NCSU trials were evaluated by a trained sensory panel under the direction of USDA personnel. Adjusted to common values of roast color and fruity attribute, the flavor of NC 12C is comparable to NC 10C in the sweet, bitter, and roasted peanut attributes. The ratio of oleic to linoleic acid in the fatty acid profile of NC 12C was significantly higher than that of NC 10C (1.76 vs. 1.58), but significantly lower than that of NC 7 (1.76 vs. 2.22).

Last Modified: 12/20/2014
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