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United States Department of Agriculture

Agricultural Research Service

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Location: Market Quality and Handling Research

2013 Annual Report

1a. Objectives (from AD-416):
Develop virginia- and runner-type peanut cultivars with enhanced sensory quality and improved shelf-life.

1b. Approach (from AD-416):
Sensory quality of roasted seeds from breeding lines from the North Carolina Agricultural Research Service's peanut breeding program will be evaluated by a sensory panel, and composition of seed components related to flavor and shelf-life will be determined.

3. Progress Report:
This project is related to in-house objective 2 addressing how to improve flavor and flavor consistency and reduce off-flavor potential in peanut varieties, breeding lines, germplasm and peanut products. For the twelfth year, samples from the UPPT were subjected analysis for tocopherols, sugars and fatty acids. Five locations provided 13 peanut breeding lines. Differences were found in flavor among the lines, but all lines had acceptable flavor quality. This data was made available to breeders for evaluation and identification of lines with desired chemical and nutritional attributes. Sensory quality testing of samples from the multi-state Uniform Peanut Performance Tests (UPPT) was done at the Market Quality Unit. These results were subjected to statistical evaluation. Restricted maximum likelihood estimation of variance components reflecting a range of interactions was performed. These components were effects of year, production region, year-by-year region interaction, location with regions, year-by-location interaction in region, genotype, year-by-genotype interaction, region-by-genotype interaction, year-by-region-by-genotype interaction, location-by-genotype interaction in region, year-by-location-by-genotype interaction in region, kernel grade within genotype, year-by-grade interaction in genotype, region-by-grade interaction in genotype, year-by-region-by-grade interaction in genotype, location-by-grade interaction in region and genotype.

4. Accomplishments

Last Modified: 05/29/2017
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