Fiber Quality Relatonships in SJV Cotton: HVI and Advanced Spinning Comparisons

Large scale variety testing programs have existed for California’s San Joaquin Valley (SJV) for many years, and detailed fiber and yarn quality analyses have been part of the testing programs.  As the types of cotton planted in the SJV and acreage planted has changed in recent years, more interest has developed for evaluations of relationships between various types of fiber and yarn quality analyses and parameters used to assess potential for improvements in cotton quality by variety choice.   Ongoing variety trials have multiple locations spread across soil types and geographic regions and therefore represent a large data set to begin to assess for methods to refine choices of testing parameters.  Data shown in this poster is a continuation of some efforts that will be considered in trying to determine acceptable minimum data sets for continuing fiber and yarn quality analyses.  Some initial efforts and correlations will be the focus of this presentation, while future efforts will focus more on statistical evaluations of relationships between parameters.