Treatments**

Day

L*

a*

b*

Control

1

89.76^A

−3.66^N

16.14^Q

15

88.04^A

−4.08^O

17.92^K

30

86.89^A

−4.55^P

19.35^H

T₁

1

30.93^F

9.41^H

25.55^B

15

30.09^F

9.33^I

23.92^C

30

31.88^F

8.32^K

18.77^J

T₂

1

44.57^BCD

8.66^J

25.92^A

15

34.91^EF

7.72^L

20.92^E

30

34.1^EF

7.31^M

20.06^F

T₃

1

48.99^BC

11.66^G

17.83^L

15

47.17^BC

11.72^F

17.47^M

30

46.62^BC

11.72^F

16.82^O

T₄

1

50.05^B

12.73^C

19.51^G

15

46.12^BCD

12.29^D

17.74^L

30

44.84^BCD

11.85^E

17.02^N

T₅

1

43.64^BCD

13.92^A

19.21^I

15

42.56^CD

12.89^B

16.77^O

30

39.3^DE

12.7^C

16.51^P

SE±

1.48

0.237

0.638