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ARS Home » Southeast Area » Tifton, Georgia » Crop Genetics and Breeding Research » Research » Publications at this Location » Publication #348185
Title: Variability of arginine content and yield components in Valencia peanut germplasm

Author
item ANINBON, C - Khon Kaen University
item JOGLOY, S - Khon Kaen University
item VORASOOT, N - Khon Kaen University
item NUCHADOMRONG, S - Khon Kaen University
item Holbrook, Carl - Corley
item KVIEN, C - University Of Georgia
item PUPPALA, N - New Mexico State University
item PATANOTHAI, A - Khon Kaen University

Submitted to: Breeding Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/15/2017
Publication Date: 12/30/2017
Citation: Aninbon, C., Jogloy, S., Vorasoot, N., Nuchadomrong, S., Holbrook Jr, C.C., Kvien, C., Puppala, N., Patanothai, A. 2017. Variability of arginine content and yield components in Valencia peanut germplasm. Breeding Science . 67:207-212.

Interpretive Summary: Arginine is an important amino acid with several health benefits, and is found at higher concentration in peanut seed than in many other but crops. The object of this study was to evaluate arginine content and yield components of a large, diverse group of Valencia peanut accessions for the purpose of identifying line that would be useful in a breeding program targeting high arginine content and pod yield. One hundred and thirty peanut genotypes were grown under field conditions for two years. Arginine content was analyzed in peanut seeds at harvest using spectrophotometry. Yield and yield components were recorded for each genotype. Significant genetic differences were observed, and two were identified that had high arginine content, pod yield and good agronomic traits. These two genotypes should be promising parents in breeding programs targeting improved arginine content and yield.

Technical Abstract: Peanut seeds are rich in arginine, an amino acid that has several positive effects on human health. Establishing the genetic variability of arginine content in peanut will be useful for breeding programs that have high arginine as one of their goals. The objective of this study was to evaluate the variation of arginine content, pods/plant, seeds/pod, seed weight, and yield in Valencia peanut germplasm. One hundred and thirty peanut genotypes were grown under field conditions for two years. A randomized complete block design with three replications was used for this study. Arginine content was analyzed in peanut seeds at harvest using spectrophotometry. Yield and yield components were recorded for each genotype. Significant differences in arginine content and yield components were found in the tested Valencia peanut germplasm. Arginine content ranged from 8.68-23.35 ug/g seed. Kremena was the best overall genotype of high arginine content, number of pods/plant, 100 seed weight and pod yield.