Location: Cotton Structure and Quality ResearchTitle: Analysis of results from the national cotton variety testing program
Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: 3/28/2019
Publication Date: 6/1/2019
Citation: Thibodeaux, D.P., Delhom, C.D., Dowd, M.K. 2019. Analysis of results from the national cotton variety testing program. Beltwide Cotton Conference, January 8-10, 2019. New Orleans, Louisiana. p. 671-676.
Technical Abstract: The National Cotton Variety Testing Program reports data from annual, experimental cotton trials grown across the US Cotton Belt. The trials, in existence since 1960, are conducted at approximately twenty locations throughout six regions around the country. Data were obtained from conventional High Volume Instrument (HVI) measurements along with the breaking strength of yarns spun from the test cottons. The fiber and yard property data for the National Standards from 2014 to 2016 were analyzed by analysis of variance and correlational analysis by year, growth region, and variety. Special consideration was given to HVI measures of elongation (ELO) and spinning consistency index. As a whole, the standard cottons did not exhibit significant differences in micronaire, length, length uniformity or strength within the three years of study. Within the same variety and location, annual changes in ELO were apparent. Yarn tenacity follows the trend of elongation.