ZnCl₂ conc., mM

Total chlorophylls, µg g⁻¹ fr wt.

Carotenoids, µg g⁻¹ fr wt.

ALA, nmoles g⁻¹ fr wt

0.0

115 ± 5 (100)

16.0 ± 1.3 (100)

333 ± 8 (100)

0.001

94 ± 7 (82)

15.9 ± 1.0 (99)

346 ± 9 (104)

0.01

108 ± 9 (94)

15.5 ± 1.1 (97)

355 ± 13 (107)

0.1

101 ± 9 (88)

15.4 ± 1.1 (96)

375 ± 14 (113)

1

121 ± 7 (105)

15.6 ± 1.4 (98)

410 ± 15 (123)

2

109 ± 12 (95)

16.0 ± 1.9 (100)

449 ± 5** (135)

5

106 ± 9 (92)

15.9 ± 0.6 (99)

475 ± 9** (143)

R² value

0.007

0.152

0.818