Evaluation of the Relationship Between HVI Leaf Grade and MDTA3 Measured Percent Trash

The objective of this study was to determine the relationship between HIV leaf grade and mass of trash in a bale of cotton fibers. Data from lint samples collected during the 2005 ginning season from 11 different gins across the cotton belt were used for this evaluation. HVI and MDTA3 measurements were made at Cotton Incorporated. Machine leaf grades were then assigned by the USDA-AMS based on HVI percent area and trash count. Analyses were conducted to examine the relationship between the HVI estimated leaf grade and percent trash by mass determined from the MDTA3.