Table 2 Pigments index and chlorophylls a/b ratio evolution along the incubation time (0, 10 and 14 days) in the different treatments (Control, 25% UW, 50% UW, 75%UW and 100%UW)

Ratio Ch a/Ch b

Days

Control

25% UW

50% UW

75% UW

100% UW

0

2

1.94

1.58

1.61

1.53

10

2.56

2.99

3.06

2.67

2.24

14

2.98

2.3

1.78

2.73

1.39

Pigment index (Carotenoids/Chl a)

Days

Control

25% UW

50% UW

75% UW

100% UW

0

0.13

0.19

0.23

0.25

0.27

10

0.22

0.22

0.13

0.23

0.2

14

0.12

0.24

0.26

0.7

0.2