| Well-watered | Early-season drought | Late-season drought | Summer drought | Analysis of variance treatment |
---|---|---|---|---|---|
No. of whorls | 2.3 (0.1) a | 2.3 (0.1) a | 2.3 (0.1) a | 2.2 (0.1) a | 0.49ns |
Internode length (cm) | 61.8 (3.1) a | 58.3 (3.1) ab | 60.0 (2.2) ab | 50.6 (3.0) b | 3.29ns |
Branches per whorl | 7.6 (0.2) ab | 6.8 (0.2) a | 7.6 (0.2) ab | 7.7 (0.2) b | 3.89* |
Branch diameter (cm) | 7.8 (0.2) a | 6.3 (0.2) b | 6.4 (0.2) b | 4.9 (0.1) c | 45.8*** |
Branch length (cm) | 40.3 (1.9) a | 29.2 (1.3) b | 31.3 (1.7) b | 20.8 (1.3) c | 44.2*** |
Needle length (cm) | 12.9 (0.4) a | 12.1 (0.2) a | 12.1 (0.5) a | 10.3 (0.3) b | 10.6*** |
Fascicles per tree | 2643 (404) a | 2297 (167) a | 1704 (123) a | 1547 (290) b | 3.61* |
Litterfall (grams) | 5.0 (0.7) ab | 1.9 (0.3) b | 6.9 (1.1) a | 7.1 (1.3) a | 9.31** |