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ARS Home » Southeast Area » Stuttgart, Arkansas » Dale Bumpers National Rice Research Center » Research » Publications at this Location » Publication #417116
Research Project: Broadening and Strengthening the Genetic Base of Rice for Adaptation to a Changing Climate, Crop Production Systems, and Markets

Location: Dale Bumpers National Rice Research Center

Title: Rice 'Tiara' - High in Antioxidants

Author
item Huggins, Trevis
item MCCLUNG, ANNA - Retired ARS Employee

Submitted to: Plant Genetic Resources
Publication Type: Book / Chapter
Publication Acceptance Date: 8/13/2024
Publication Date: 8/13/2024
Citation: Huggins, T.D., Mcclung, A. 2024. Rice 'Tiara' - High in Antioxidants. Book Chapter. Plant Genetic Resources.

Interpretive Summary:

Technical Abstract: Black or colored rice is a specialty commodity that commands a premium in the marketplace. However, it has not been grown in the USA but generally has been imported from Asia. Aromatic or scented rice also is under high demand in the marketplace and accounts for the majority of the rice imported into the USA. Development of a new rice variety that combines purple bran with an aromatic rice scent that could be cultivated in the Southern USA promised to open a new specialty market for domestic growers. The aromatic purple bran, medium grain variety ‘IAC 600’, was developed by Dr. Candido Bastos at the Instituto Agronomico-Campinas in São Paulo, Brazil in 2001 and then jointly released with the USDA-ARS in the USA. The variety ‘USDA-Tiara’ was derived from an outcross between ‘IAC 600’ and an unknown long grain cultivar identified in a breeder’s field at the USDA-ARS, Rice Research Unit in Beaumont, Texas. Selections for semidwarf height, early maturity, long grain, purple bran color uniformity, tillering and seed set were conducted across eight generations. Genetic markers linked with amylose content, aroma, blast resistance, gelatinization temperature and glabrousness were also used in the selection process. ‘Tiara’ was evaluated in replicated yield trials in Stuttgart, Arkansas and yielded 15% higher grain than its parent ‘IAC 600’ and produced higher whole grain yield, indicating its improved agronomic performance compared to ‘IAC 600’. The development of ‘Tiara’, a long grain, aromatic purple bran rice provides domestic growers with a cultivar that is adapted to production in the Southern USA and an opportunity to compete in the high value specialty market. ‘Tiara’ has high amylose content and an intermediate starch gelatinization temperature, similar qualities to other long grain cultivars adapted to the Southern USA such as Cocodrie and Cheniere. ‘Tiara’ has elevated antioxidant activity due to the phenolics in the colored bran which is associated with human health benefits. This is an ebook chapter that will be published in an ebook titled "Plant Genetic Resources: Success Stories".