Calibration of HVI cotton elongation measurements

作     者：DELHOM Christopher D. HEQUET Eric F. KELLY Brendan ABIDI Noureddine MARTIN Vikki B. DELHOM Christopher D.;HEQUET Eric F.;KELLY Brendan;ABIDI Noureddine;MARTIN Vikki B.

作者机构：USDA-ARSNew OrleansLA 70124USA Texas Tech UniversityLubbockTX 79409USA Cotton IncorporatedCaryNC 27513USA. 

出 版 物：《Journal of Cotton Research》 (棉花研究（英文）)

年 卷 期：2020年第3卷第4期

页      面：268-277页

学科分类：09[农学] 0901[农学-作物学] 

基　　金：This work was supported by USDA-ARS(6054–44000-079D)and Cotton Incorporated(Project 17–616) 

主　　题：Cotton Elongation High volume instrument Tenacity Work-to-rupture 

摘      要：Background:The strength of cotton fiber has been extensively studied and significant improvements in fiber strength have been made,but fiber elongation has largely been ignored,despite it contributing to the energy needed to break fibers,which affects fiber handling and *** Volume Instruments(HVI)measure fiber elongation but have not been calibrated for this property,making the measurement unavailable for comparative work among *** prior work,a set of elongation calibration materials had been developed based on Stelometer results.A round trial of ten Australian and *** was conducted on six cotton samples representing a range of 4.9%to 8.1%***:By scaling the HVI elongation values of each instrument to the values of the two calibration samples,the coefficient of variation in instrument measurements was reduced from an average of 34%for the uncalibrated measurements to 5%for the calibrated *** reduction in variance allows for the direct comparison of results among instruments.A single-point elongation calibration was also assessed but found to be less effective than the proposed two-point ***:The use of an effective calibration routine on HVI measurement of cotton significantly reduces the coefficient of variation of the elongation measurement within and between *** implementation of the elongation calibration will allow testing and breeding programs to implement high-speed elongation testing which makes the use of elongation values possible in breeding programs.