{"refrec":{"BRefID":25996,"RR":"<b>Dong, W.; Carter, G.A.; Barber, J.T.</b> (2002). Spectral reflectance of <i>Lemna gibba</i> fronds exposed to ethylene glycol. <i>Aquat. Bot. 73(3)</i>: 275-281. <a href=\"https://dx.doi.org/10.1016/S0304-3770(02)00026-8\" target=\"_blank\">https://dx.doi.org/10.1016/S0304-3770(02)00026-8</a>","BEntID":25996,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquat. Bot. 73(3)</i>: 275-281. <a href=\"https://dx.doi.org/10.1016/S0304-3770(02)00026-8\" target=\"_blank\">https://dx.doi.org/10.1016/S0304-3770(02)00026-8</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Dong, W.; Carter, G.A.; Barber, J.T.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Dong, W.; Carter, G.A.; Barber, J.T.","Englishabstract":"Spectroradiometry was used to quantify changes in duckweed frond reflectance that occurred throughout the 400-850 nm spectrum under various ethylene glycol (EG) concentrations and exposure times. The threshold concentration of EG at which a reflectance change could be detected was between 35 and 40 mM (P0.01), approximately, the same as by visual observation. EG-induced changes in frond reflectance were maximal at concentrations of 50 mM or greater. Reflectance changes were detectable within 24 h of exposure to 100 mM EG, 2-3 days prior to changes in frond appearance. 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