The 2nd Round Trial of CSITC 2017 was completed at the end of June 2017
Date Posted: 12 Jul, 2017
From the Secretariat
CSITC ROUND TRIALS IN THEIR TENTH YEAR
The 2nd Round Trial of 2017 conducted under the auspices of the Task Force on Commercial Standardization of Instrument Testing of Cotton (CSITC RT 2017-2) was completed at the end of June 2017, and results have been distributed. CSITC Round Trials are now in their tenth year, a remarkable achievement in the long history of efforts to improve and standardize instrument testing of cotton.
Improvement
Over the last five years, the median score on the combined properties evaluation has improved by about one-fifth, from 0.46 to 0.38. This indicates that the CSITC Round Trials are leading to systematic and sustained improvement in cotton quality testing around the world.
Average laboratory performance has improved remarkably in testing color Rd (reflectance) and color +b (yellowness), and there have also been improvements in testing micronaire, strength and length uniformity. However, the inter-instrument variation in tests for length is the same in 2017 as it was in 2012. Laboratory performance on parameters other than color started from better levels, and so there has been less room for improvement.
Round Trial Procedures
Testing facilities submitted results from 124 instruments during RT 2017-2. Each round trial consists of four samples prepared by the U.S. Department of Agriculture (USDA) and sent to participating laboratories. Each sample is tested in each laboratory six times a day for five days for all six CSITC parameters of micronaire, length, length uniformity, strength, Rd and +b, resulting in a total of 720 measurements from each instrument. Results are downloaded electronically and sent to the Bremen Fibre Institute (FIBRE) for evaluation. Because of the large number of observations over a five-day period, the resulting pattern of results can be used for detailed diagnostic evaluation.
Laboratories are not given grades or pass/fail results, and all results are confidential. The purpose of CSITC round trials are to facilitate improvements in both accuracy and precision among cotton testing laboratories around the world.
Typical inter-Instrument variation, given as standard deviations:
CSITC RT 2017-2
| Property | Standard Deviation based on Single Tests |
Standard Deviation based on 30 tests/sample |
| Micronaire | 0.071 mic | 0.058 mic |
| Strength | 0.953 g/tex | 0.687 g/tex |
| Length | 0.0155 inches | 0.0108 inches |
| Length Unif. | 0.716 units | 0.400 units |
| Color Rd | 0.588 units | 0.489 units |
| Color +b | 0.318 units | 0.268 units |
Laboratories are given an overall ranking, as well as rankings for performance on each of the six parameters. Rankings are based on the results of each lab in coming closest to the mean (average) values for all laboratories participating in the Round Trial on all six parameters.
The range of scores for the combined properties evaluation among the 124 instruments was 0.13 to 1.68 (a score of zero would be perfect), and the median overall evaluation of combined properties was 0.38.
Optional Parameters
In addition to the 6 parameters for ranking, an additional 4 parameters were included for information purposes: Short Fiber Index (SFI), Maturity, Trash Area and Trash Count. The inter-laboratory variations for the four additional parameters are higher than the variations for the 6 parameters approved by CSITC. Therefore, laboratories are not evaluated according to the optional parameters. Nevertheless, the resulting deviations for each parameter provide useful information to market participants.
The typical inter-Instrument variation, given as standard deviations:
CSITC RT 2017-2
| Property | Standard Deviation based on Single Tests |
Standard Deviation based on 30 tests/sample |
| Trash Count | 6.26 | 5.39 |
| Trash Area | 0.055% | 0.043% |
| Maturity | 1.61 units | 1.55 units |
| SFI | 1.27 units | 1.10 units |
Since 2012, the standard deviation of inter-instrument test results for maturity and SFI have fallen (meaning they improved) by nearly half, and the measurement of trash count improved by about one-fourth. Inter-instrument variation in the measurement of trash area is about the same in 2017 as it was in 2012. The inter-instrument variations for Maturity and SFI have improved to such an extent that the Task Force on CSITC will consider adding these parameters to the list of official CSITC parameters at its next meeting on August 25 in Memphis.
Within-Limits Evaluations
Laboratories are also being informed as to what proportion of their test results are within a given limit for each parameter. This information provides additional practical information that will be useful in improving testing performance.
Average Percentage of Instruments Testing Within Established Limits:
CSITC RT 2017-2
| Property | Limit chosen by CSITC | Average % of results inside the limits | % of instruments with all sample results inside the limits | Average % of results inside the limits | % of instruments with 95% of sample results inside the limits |
| based on 30 tests/sample | based on 30 tests/sample | based on 1 test/sample | based on 1 test/sample | ||
| Micronaire | 0.20 units | 100 | 100 | 98.8 | 92.7 |
| Strength | 2.0 g/tex | 97.2 | 88.7 | 94.4 | 66.9 |
| Length | 0.030 inches | 99 | 96 | 96 | 75.8 |
| Length Unif. | 2.0 units | 98.2 | 96 | 97 | 91.1 |
| Color Rd | 1.5 units | 92.9 | 90.2 | 92.3 | 83.7 |
| Color +b | 0.5 units | 91.1 | 75.6 | 85.5 | 40.7 |
Information about CSITC and overall Round Trial results (information for individual laboratories is confidential) is available at www.CSITC.org.
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Dr. Keshav R. Kranthi, Ph.D is the Chief Scientist at the International Cotton Advisory Committee (ICAC), Washington, DC. Before joining the ICAC, he served as the Director of the Central Institute for Cotton Research (CICR) in Nagpur, India, from 2008 to 2017. Dr. Kranthi has thirty-five years of experience as a cotton scientist. He received a gold medal in his Ph.D. in 1991 and has been honored with more than a dozen awards, including the Best CPP Program Award for Research Leadership by the Renewable Natural Resources Research International, UK; the ICAC Researcher of the Year Award in 2009; the Vasantrao Naik Smruti Pratisthan Award in 2004; the ICAR National Award for Leader of Best Team Research in 2006; Fellow of the National Academy of Agricultural Sciences in 2009; the ISCI Recognition Award in 2010; Krishi Gaurav Award in 2010; Bhumi Nirman Award in 2011; ISCI Fellow in 2017; the Plant Protection Recognition Award in 2016 by the National Academy of Agricultural Sciences; Suresh Kotak Global Cotton Award in 2023 and the CRDA life time achievement Award in 2024. Dr. Kranthi has four patents granted in South Africa, Mexico, China, and Uzbekistan, and six patent applications in India. He has published more than 100 peer-reviewed research papers, 20 books/handbooks/manuals, 17 book chapters, and more than 50 popular articles. Dr. Kranthi has presented invited talks and conducted training sessions in more than 40 countries. His research citations are in excess of 6,500. As the chief principal investigator, he coordinated and led more than 35 externally funded international collaboration research projects.
Dr. Charudatta Mayee, Ph.D is a distinguished Indian agricultural scientist and administrator with over five decades of contributions to Indian agriculture. Dr. Mayee currently serves as Adjunct Professor at IARI, New Delhi, and several ICAR institutions and universities. Dr Mayee served as Vice Chancellor of MAU Parbhani, Director of the Central Institute for Cotton Research (ICAR-CICR), Nagpur, and Agriculture Commissioner for the Government of India. Dr Mayee served as Vice President of the National Academy of Agricultural Sciences (NAAS) India. Dr. C.D. Mayee has received numerous accolades spanning five decades, recognizing his transformative contributions to agricultural science. He is an Alexander von Humboldt Fellow and has received lifetime achievement awards from multiple institutions. His early career was marked by the Prof. M.J. Narasimhan Academic Award (1974) and V.P. Gokhale Award (1998), followed by national honors like the Vasantrao Naik Krishi Award (2002), ICAR Outstanding Team Research Award (2003), and Dr. B. Vishwanath Award (2005). He received Lifetime Achievement Awards from the Indian Society for Cotton Improvement (2008), National Academy of Agricultural Sciences (2011), and Indian Phytopathological Society (2017), among others. Four universities conferred Honorary Doctorates (D.Sc.) for his pioneering work (2009–2023). Recent distinctions include the Best Cotton Scientist Award (2022, Cotton Association of India), Krishi Maharshi for Cotton R&D (2024) and the winner of the ICAC Researcher of the Year Award 2025.
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Dr Olivier Zieschank studied Management at the university of Lausanne, where he graduated in 2005. Until 2010, he worked in a Swiss-based start-up that specialized in negotiating cell tower lease agreements, where he became associate director. In 2010, he returned to university and studied applied economics in Neuchatel, Switzerland. He wrote his PhD in Economics at the University of Freiberg, Germany, where he developed a theory of organization. Mr Zieschank was appointed Economist at the ITMF in August 2017 and became director in January 2021.
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Name: Mary Concilia Anchang
Besim Özek
SIDDHARTHA RAJAGOPAL, Executive Director – TEXPROCIL