Investigation of a Multivariate Correction Method for HVI Fibrogram Measurements

Cotton fiber length parameters are used across the cotton industry to select elite germplasm, purchase bales and manage mill throughput. The High Volume Instrument (HVI) provides most commonly parameters, upper half mean (UHML) uniformity index (UI). UI is ratio of (ML) UHML expressed as a percentage. These ML, generated following fibrograph principle highly correlated with two span lengths on fibrogram curve. represent small part do not characterize total within-sample variation. In previous studies, we found that variation captured by whole improves prediction yarn quality. However, HVIs currently calibrated for UI. this study, investigated correction method using set 461 commercial samples correct curve validated an independent 932 samples. procedure lowers Euclidian distance between fibrograms much 35%, bringing measurements into agreement multiple HVIs. This indicates could be improve HVI industry.