Treatment

Days of treatment

Total root length/cm

Taproot length/cm

Lateral root length/cm

pH4

4

145.32 ± 6.10a(a)

7.62 ± 0.73a(a)

137.10 ± 4.88a(a)

8

153.52 ± 2.54b(a)

8.29 ± 0.17a(a)

144.72 ± 2.42b(a)

12

159.26 ± 0.99b(a)

8.78 ± 0.76a(a)

150.05 ± 0.91b(a)

pH4.5

4

154.39 ± 1.19a(b)

8.14 ± 0.64a(a)

145.93 ± 0.58a(b)

8

166.42 ± 3.57b(b)

8.85 ± 0.57ab(a)

156.73 ± 3.21b(b)

12

174.85 ± 2.31c(b)

9.63 ± 0.61b(a)

163.34 ± 1.38c(b)

pH5

4

159.38 ± 0.97a(bc)

8.51 ± 0.29a(a)

150.88 ± 0.49a(c)

8

177.31 ± 1.75b(c)

9.36 ± 0.27b(b)

167.12 ± 1.50b(c)

12

189.63 ± 0.51c(c)

10.53 ± 0.46c(b)

178.88 ± 0.44c(c)

pH6

4

164.58 ± 2.43a(c)

8.78 ± 0.43a(a)

155.23 ± 2.15a(c)

8

187.62 ± 1.50b(d)

9.85 ± 0.92b(b)

177.09 ± 0.48b(d)

12

208.96 ± 1.49c(d)

11.25 ± 0.40c(c)

197.96 ± 1.59c(d)