Rapid Analysis of Dry Matter Content and Other Quality Traits in Cassava using the ASD QualitySpec® Trek

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00:00:00 Welcome
00:00:20 Introduction
00:01:52 Rapid Analysis of Dry Matter Content and Other Quality Traits in Cassava using the ASD QualitySpec® Trek
00:02:16 Outline
00:03:18 Cassava (‘Yuca’, ‘Tapioca’, etc.)
00:04:09 Advances in cassava improvement: NextGen
00:06:12 Genomic selection:1. Training population -(phenotyping + genotyping)2. Model validation – phenotyping
00:09:07 Phenotyping is critical in the current modern cassava improvement
00:11:17 Modern cassava improvement vs available phenotyping protocols for dry matter content: Oven-drying
00:12:58 Modern improvement methods vs available phenotyping protocols for dry matter content: Gravity method
00:14:19 Towards large-scale, rapid and accurate phenotyping in cassava: NIRS
00:17:05 Calibration protocol
00:18:49 DMC calibration in cassava using the portable ASD QualitySpec® Trek NIRS
00:20:19 DMC calibration in cassava using the portable ASD QualitySpec® Trek NIRS: Data pre-processing
00:23:16 DMC calibration in cassava using the portable ASD QualitySpec® Trek NIRS: Data pre-processing
00:25:08 DMC calibration in cassava using the portable ASD QualitySpec® Trek NIRS: Reference datasets
00:26:15 Sample preparation and data pre-treatment can affect calibration performance
00:28:11 Calibration with references from specific gravity vs oven drying methods
00:29:03 NIRS derived vs Sg and Oven-dried DMC
00:31:20 Calibration for other traits in cassava and future directions: Carotenoids
00:33:24 Calibration for other traits in cassava and future directions: Carotenoids
00:34:21 Calibration for other traits in cassava and future directions: Starch and pasting properties
00:35:23 NIRS deployment to NextGen breeding programs
00:37:00 Considering cost-efficiency of NIRS in cassava breeding program
00:39:34 Conclusion
00:41:00 Acknowledgements
00:41:32 Questions?
00:41:43 Q&A and Contact Information
00:43:23 NIRS deployment to NextGen breeding programs
00:44:51 Q&A and Contact Information
00:45:43 ASD QualitySpec® Trek Portable Spectrometer
00:46:10 Q&A and Contact Information

This webinar focuses on analyzing and processing dry matter content in addition to other quality traits in cassava using the Malvern Panalytical ASD QualitySpec® Trek Portable Spectrometer.

演讲嘉宾

Dr. Ugochukwu “Ugo” Ikeogu is a Post-doctoral Research Associate at Cornell University in the Section of Plant Breeding and Genetics. He holds both a Bachelor’s degree in Agronomy and Crop Science and Master’s in Plant Breeding and Genetics from Nigeria’s Michael Okpara University of Agriculture, Umudike, where he worked on Soybean adaptation and improvement. His PhD research at Cornell University focused on high throughput phenotyping, the use of genomic information and efficient statistical tools in speeding-up genetic gain in cassava. Ugo pioneered the use of portable visible and near-infrared spectrometer (Vis/NIRS) for rapid and standardized phenotyping of quality traits in cassava using linear and non-linear calibration models and assisted in developing strategies and methods for the implementation of genomic selection and other tools for cassava improvement. He is currently working as a Post-doc on high-throughput phenotyping using thermal and hyperspectral imaging tools, transcriptomic and metabolomics profiling of stress responses in Setaria.

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- What will you learn?
The significance of the portable spectrometer in rapid evaluation of quality traits in cassava improvement.
Development of calibration models for different quality traits in cassava.​​