当前位置: X-MOL 学术J. Near Infrared Spectrosc. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Measuring the maturity of unopened cotton bolls with near infrared spectroscopy
Journal of Near Infrared Spectroscopy ( IF 1.8 ) Pub Date : 2020-04-02 , DOI: 10.1177/0967033520911463
Robert L Long 1 , Michael P Bange 1
Affiliation  

The boll cutting technique allows cotton producers to gauge the maturity of cotton bolls to help in their decision-making in the final stages of management of their crop leading up to harvest. The aim of this work was to assess the feasibility of using portable near infrared technology as a non-destructive rapid replacement for the manual boll cutting technique. Near infrared spectra (702–1100 nm) were collected from bolls using a Felix F-750 Produce Quality Meter. Spectra were successfully calibrated with two levels of boll maturity (immature and mature) using a partial least squares model for a population of 201 bolls. Independent validation of the model using separate boll populations predicted boll maturity correctly with an average accuracy of 96%. Calibrations that used spectra collected from bolls under field conditions performed similarly to calibrations that used spectra collected from the same bolls under controlled laboratory conditions. There was no preferred spectral sampling location on the bolls that resulted in better calibration performance. Calibration performance did not improve when spectral mathematical pre-treatments were used.

中文翻译:

用近红外光谱测量未开封棉铃的成熟度

棉铃切割技术使棉花生产商能够衡量棉铃的成熟度,以帮助他们在作物管理的最后阶段做出决策,直至收获。这项工作的目的是评估使用便携式近红外技术作为手动切棉技术的非破坏性快速替代技术的可行性。使用 Felix F-750 农产品质量计从棉铃收集近红外光谱 (702–1100 nm)。使用偏最小二乘模型对 201 个棉铃种群使用两个棉铃成熟度水平(未成熟和成熟)成功校准了光谱。使用不同棉铃种群对模型进行的独立验证正确预测棉铃成熟度,平均准确率为 96%。使用在田间条件下从棉铃收集的光谱进行的校准与在受控实验室条件下使用从相同棉铃收集的光谱进行的校准类似。棉铃上没有导致更好校准性能的首选光谱采样位置。当使用光谱数学预处理时,校准性能没有提高。
更新日期:2020-04-02
down
wechat
bug