Genotypic variability in anthocyanins, total phenolics, and antioxidant activity among diverse waxy corn germplasm

Thumbnail Image
Date
2015-05-01
Authors
Harakotr, Bhornchai
Suriharn, Bhalang
Scott, Marvin
Lertrat, Kamol
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Person
Scott, M. Paul
Affiliate Professor
Research Projects
Organizational Units
Organizational Unit
Agronomy

The Department of Agronomy seeks to teach the study of the farm-field, its crops, and its science and management. It originally consisted of three sub-departments to do this: Soils, Farm-Crops, and Agricultural Engineering (which became its own department in 1907). Today, the department teaches crop sciences and breeding, soil sciences, meteorology, agroecology, and biotechnology.

History
The Department of Agronomy was formed in 1902. From 1917 to 1935 it was known as the Department of Farm Crops and Soils.

Dates of Existence
1902–present

Historical Names

  • Department of Farm Crops and Soils (1917–1935)

Related Units

Journal Issue
Is Version Of
Versions
Series
Department
Abstract

Identification of germplasm sources of waxy corn (Zea mays L. var. ceratina) with high variability for anthocyanins, phenolic compounds, and antioxidant activity is an important phase for waxy corn breeding for improvement of useful phytochemicals. The objectives of this study were to evaluate 49 genotypes of waxy corn for color parameters, monomeric anthocyanin content (MAC) and total phenolic content (TPC), and antioxidant activities. The experiment was conducted under field conditions in a randomized complete block design with three replications for two seasons in the rainy and the dry season 2010. Corn genotypes and seasons were significantly different (P ≤ 0.01) for most traits under study except for TPC. Variations due to genotype were large for all characters, accounting for 74.43–95.70 % of total variations. The interactions between genotype and season were significant for all characters. Forty-nine corn genotypes were divided into four groups based on antioxidants and their activities. Significant and positive correlations were found among the anthocyanins, phenolics, and antioxidant activities, and correlation coefficients between anthocyanins with 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ability and Trolox equivalent antioxidant capacity (TEAC) assays were high (r = 0.94 and 0.88, respectively). All of the Hunterlab color parameters, including chroma and hue angle were highly correlated with anthocyanins, phenolics and their activities and therefore could be used as indirect selection criteria for improving levels of antioxidants and antioxidant activity in waxy corn.

Comments

This is article is published as Harakotr, Bhornchai, Bhalang Suriharn, Marvin Paul Scott, and Kamol Lertrat. "Genotypic variability in anthocyanins, total phenolics, and antioxidant activity among diverse waxy corn germplasm." Euphytica 203, no. 2 (2015): 237-248, doi: 10.1007/s10681-014-1240-z.

Description
Keywords
Citation
DOI
Copyright
Collections