《Table 2 Effect of intravital staining on leaf color indices C*, H0and CIRG in C.comosum var.variega

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《Effect of Intravital Staining on Leaf Surface Coloring and Plant Carbon and Nitrogen Nutrition in Chlorophytum comosum var. variegatum》

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The values followed by different lower case letters were significantly different at P﹤0.05.

As shown in Table 1，all the three treatments with coloring agents had a significant effect on leaf color indices of C.comosum var.variegatum.a*，b*and L*in all the three treatments gradually increased over time after the addition of coloring agents.On day 20 of staining treatment，the a*value in treatments T2and T3was significantly higher than that in T1and CK，while the a*value in T1treatment was significantly lower than that in the other three treatments.On day 60 of staining treatment，the a*value in treatments T1，T2，T3and CK was increased by 12.32%，7.35%，7.78%and-0.52%，respectively，indicating that the green color of the leaves was decreased and the red color was increased by the treatment with coloring agents.In addition，in a decreasing order of a*value on day 60，the four treatments were T3>T2>T1>CK，and the a*value in Treatment T3was significantly higher than that in T1and CK，and the a*value in CK was significantly lower than that in the other three treatments.On day 20 of staining treatment，the a*value in T2and T3was significantly higher than that in other treatments，while the a*value in CK was significantly lower than that of the other treatments；the b*value of T1，T2，T3and CK was increased by 38.08%，0.30%，3.64%and 2.90%，respectively.The results showed that the blue color was weakened and the yellow color was enhanced，and the effect in T1was most obvious.In a decreasing order of b*value on day 20，the four treatments were T1>T3>T2>CK，with significant differences in b*value.The L*value of T3was significantly lower than that of T2and CK on day20，and the L*value in T1，T2，T3and CK was increased by16.77%，7.95%，16.78%and 6.14%，indicating the leaf brightness was increased.In a decreasing order of L*value，the four treatments were T1>T3>CK>T2，and the L*value in T1and T3were significantly greater than that in T2and CK.