Table II.
Photosynthetic pigments in pea leaves subjected to water deficit or treated with PQ
| Pigment | Treatment
|
||||
|---|---|---|---|---|---|
| C1 | D1 | D2 | C2 | PQ | |
| μg cm−2 | |||||
| Chlorophyll a | 25.93a | 21.46b | 18.14b | 35.51c | 28.55a |
| Chlorophyll b | 9.82ab | 8.93bc | 7.78c | 13.53d | 11.16a |
| β-Carotene | 3.19a | 2.40bc | 1.98c | 4.21d | 2.83ab |
| Neoxanthin | 1.65a | 1.37b | 1.18b | 2.22c | 1.70a |
| Lutein | 5.78a | 5.23ab | 4.45b | 7.99c | 5.90a |
| Violaxanthin | 1.51a | 0.89b | 0.59c | 2.17d | 0.60c |
| Antheraxanthin | 0.16a | 0.26ab | 0.35b | 0.17a | 0.35b |
| Zeaxanthin | 0.07a | 0.28b | 0.40c | 0a | 0.46c |
Plant treatments and statistical analysis are as described in Table I. Values are means of three to four independent plant samples.