文献类型: 外文期刊
作者:
Dou, Y. Q.
1
;
Cheng, S.
3
;
Li, X. J.
2
;
Liu, Y.
4
;
Yuan, X. L.
1
;
作者机构: 1.Chinese Acad Agr Sci, Tobacco Res Inst, Qingdao 266101, Peoples R China
2.Shandong Agr Univ, Coll Resources & Environm, Tai An 271018, Shandong, Peoples R China
3.China Tobacco, Shanghai Tobacco Grp Co LTD, Shanghai 200082, Peoples R China
4.China Tobacco, Shandong Linyi Tobacco Co LTD, Linyi 276400, Peoples R China
关键词: flue-cured tobacco;spectral reflectance;chemical composition;inversion model;prediction
期刊名称:APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH ( 影响因子:0.711; 五年影响因子:0.796 )
ISSN: 1589-1623
年卷期: 2017 年 15 卷 4 期
页码:
收录情况: SCI
摘要: We used spectroradiometry to rapidly and nondestructively predict the nicotine content in fluecured tobacco leaves and obtained hyperspectral images of tobacco leaves during the squaring development stage at field conditions. We tested the nicotine content in the lab and analyzed correlations between 28 hyperspectral characteristic parameters and the nicotine content of tobacco leaves to establish inversion models. The result showed that (SDr-Sy)/(SDr+Sy), Rg/Ro, and (Rg-Ro)/(Rg+Ro) provided good correlations for the nicotine content; an inversion model based on (SDr-Sy)/(SDr+Sy) in relation to the nicotine content, Y=-4.2628+5.8974X((SDr-Sy)/(SDr+Sy)) -1.3260X((SDr-Sy)/(SDr+Sy))2, and a multiple regression model based on Rg/Ro, (SDr-Sy)/(SDr+Sy) in relation to the nicotine content, Y=0.4753+1.6982 X(SDr-Sy)/(SDr+Sy) -0.1616X(Rg/Ro), could be used to predict the nicotine content of flue-cured tobacco leaves during the squaring stage.
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