Source Degree of Freedom (df) Sum of Squares (SM) Mean Squares MS = SS/df F-Statistics P-value Shoots       Different concentration 3 2.30222 0.01904 523.25 0.000 Different days 2 0.03808 0.76741 12.98 0.007 Error 6 0.00880 0.00147   3 Total 11 2.34910       Roots           Different concentration 3 1.2672 0.4224 3210.5 0.000 Different days 2 0.0178 0.00891 67.72 0.000 Error 6 0.00078 0.00013     Total 11 1.28587       F = MSB/MSE, The between-sample variance, S2B = SSB/k -1, where k is the number of samples or treatment and is often called the Mean Square Between, MSB = SSB/k-1, The within-sample variance, S2W = SSW/n-k, where n is the total number of observations in all the samples is often called the Mean Square Within or Mean Square Error, MSE = SSE/n-k,

Table 4: ANOVA table for arsenic ions absorption efficiency of shoots and roots.