Open Access

Table 1

ΔK changes as the time of exposure sun and air is increased.

Time (h) 2014 2015 2016
0 0.037 Ca −0.055 Db −0.040 Db
56 0.162 Aa 0.024 Cb −0.018 Cc
112 0.111 Ba 0.041 Bb 0.006 Bc
168 0.115 Bb 0.140 Aa 0.011 Ac

Note: Different superscript letters in the same row indicate significant difference between mean values (P <0.05).

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