Abstract
Abstract: This study aimed to evaluate the near-infrared spectroscopy potential in analyzing the quality of cottonseed regarding different physiological quality levels, noting the need for faster techniques and tools to aid decision making. It was used eight samples of cottonseed with and without lint, presenting different physiological quality. The “high” (lots 1, 4, 5, 6 and 7) and “low” (lots 2, 3 and 8) vigor levels were defined based on vigor tests carried out and on the Normative Instruction 45/2013. The near infrared spectroscopy spectra was obtained from four types of sample preparations: whole seeds, cut in a half, without tegument and grounded seeds. Using the spectra and the grouping of lots in high and low vigor, cross validation models were optimized, built using the PLS - DA method, making it possible to predict seed classes. Grounded seeds were the best type of sample preparation, with 95% of correct predictions for high vigor seeds and 100% of low vigor (both for seeds with lint) and with 100% correct predictions for high vigor seeds and 91.7% low vigor (without lint).
Highlights
The cotton crop represents an important part of generating income and employment on a national and global scale
Vigor tests that differentiate the physiological potential of the materials are carried out so that complementary information is obtained for the internal quality control of the companies producing cottonseed, but are generally, they are more time-consuming evaluations
The seeds used were supplied by the company Bayer®, in which these samples were from eight lots of different physiological seed qualities, in which each sample was divided into seeds with and without lint, and to identify each sample it was given a numbering from 1 to 8
Summary
The cotton crop represents an important part of generating income and employment on a national and global scale. Considering all the technology used for cotton production, it is important to use high quality seeds in order to obtain satisfactory results in the field. Mattioni et al (2012) observed that the use of seeds of medium and low quality originate plants that cannot be equated, in development and productivity, with those of high-quality seeds. In the post-harvest stages of cottonseed, the evaluation of the seed lots allows estimating their aggregate value for both reception, delineation and commercialization purposes, as well as to predict the number of seeds required for planting. Vigor tests that differentiate the physiological potential of the materials are carried out so that complementary information is obtained for the internal quality control of the companies producing cottonseed, but are generally, they are more time-consuming evaluations
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
