Time (Days)

Parameter

Control

Irgarol 1051 concentrations (µg/l)

F (p)

LSD

0.25 µg/l

0.50 µg/l

0.75 µg/l

0

Chl.a

0.582 ± 0.002^a

0.582 ± 0.002^a

0.582 ± 0.002^a

0.582 ± 0.002^a

1111.304**

(<0.001)

0.003

Chl.b

0.210 ± 0.001^a

0.210 ± 0.001^a

0.210 ± 0.001^a

0.210 ± 0.001^a

147.692**

(<0.001)

0.002

Total

0.792

0.792

0.792

0.792

2

Chl.a

0.730 ± 0.004^a

0.632 ± 0.02^b

0.591 ± 0.001^d

0.632 ± 0.003^c

12477.465**

(<0.001)

0.004

Chl.b

0.230 ± 0.001^a

0.271 ± 0.004^b

0.243 ± 0.004^d

0.201 ± 0.002^c

804.000**

0.003

Total

0.960

0.903

0.834

0.833

4

Chl.a

1.150 ± 0.008^a

0.950 ± 0.013^b

0.941 ± 0.02^d

0.662 ± 0.003^d

22491.304**

(<0.001)

0.004

Chl.b

0.540 ± 0.008^a

0.480 ± 0.006^b

0.302 ± 0.001^d

0.294 ± 0.010^d

1760.000**

(<0.001)

0.002

Total

1.690

1.430

1.243

0.956

8

Chl.a

4.280 ± 0.004^a

3.260 ± 0.011^b

1.510 ± 0.04^d

1.473 ± 0.006^d

12261.818**

(<0.001)

0.004

Chl.b

1.520 ± 0.015^a

1.140 ± 0.007^b

0.742 ± 0.004^d

0.401 ± 0.004^d

348.333**

(<0.001)

0.003

Total

5.800

4.400

2.252

1.874

12

Chl.a

3.220 ± 0.003^a

2.640 ± 0.019^b

1.424 ± 0.006^c

0.840 ± 0.005^d

8030.182**

(<0.001)

0.003

Chl.b

1.400 ± 0.005^a

0.850 ± 0.004^b

0.561 ± 0.03^c

0.360 ± 0.007^d

3450.000**

(<0.001)

0.002

Total

4.620

3.490

1.985

1.200

16

Chl.a

3.350 ± 0.021^a

2.140 ± 0.02^b

1.020 ± 0.02^d

0.650 ± 0.004^c

51107.027**

(<0.001)

0.004

Chl.b

1.220 ± 0.004^a

0.810 ± 0.01^b

0.570 ± 0.008^d

0.310 ± 0.005^c

17730.000**

(<0.001)

0.002

Total

4.570

2.950

1.590

0.960