[4] Sankaran S, Mishra A, Ehsani R, et al. Computers and Electronics in Agriculture, 2010, 72: 1.
[8] Liu D, Sun D W, Zeng X A. Food and Bioprocess Technology, 2014, 7(2): 307.
[9] Li H D, Xu Q S, Liang Y Z. Analytica Chimica Acta, 2012, 740: 20.
[10] Mehmood T, Liland K H, Snipen L, et al. Chemometrics and Intelligent Laboratory Systems, 2012, 118: 62.
[12] Yu K Q, Zhao Y R, Li X L, et al. Plos One, 2014, 9: e116205.
[14] Galval R K H, Araujo M C U, Jose G E, et al. Talanta, 2005, 67(4): 736.
[15] Carter G C. American Journal of Botany, 1993, 80(3): 239.
[16] Moshou D, Bravo C, Oberti R, et al. Biosystems Engineering, 2011, 108(4): 311.
[17] Penuelas J, Filella I, Biel C, et al. International Journal of Remote Sensing, 1993, 14(10): 1887.