Table 3. Changes in leaf thickness and mesophyll cell wall thickness (Means ± S.D.) in Bt-SY63 and SY63 under ambient and elevated O3.
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Leaf thickness (μm )
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Mesophyll cell wall thickness (um)
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|---|---|---|---|---|---|---|---|
| Variety | Treatment | 64-DAS | 85-DAS | 105-DAS | 64-DAS | 85-DAS | 105-DAS |
| Bt-SY63 | A-O3 | 273.01±8.16 | 283.76±11.37 | 299.08±15.71 | 0.19±0.01 | 0.24±0.02 | 0.22±0.03 |
| E-O3 | 301.97±8.31 | 295.91±2.03 | 296.55±22.67 | 0.26±0.05 | 0.22±0.05 | 0.20±0.01 | |
| SY63 | A-O3 | 303.97±16.26 | 304.08±21.26 | 296.40±12.48 | 0.25±0.02 | 0.22±0.03 | 0.24±0.02 |
| E-O3 | 292.57±6.72 | 286.59±1.75 | 289.13±10.14 | 0.23±0.02 | 0.25±0.01 | 0.23±0.02 | |
| Effect | Significance of repeated measures of general linear model | ||||||
| Leaf thickness | Mesophyll cell wall thickness | ||||||
| O3 | n.s. | n.s. | |||||
| Variety | n.s. | * | |||||
| O3 × variety | * | n.s. | |||||
| Time | n.s. | n.s. | |||||
| Time × O3 | n.s. | n.s. | |||||
| Time × variety | n.s. | n.s. | |||||
| Time × O3 × variety | n.s. | * | |||||
A-O3, Ambient O3; E-O3, Elevated O3. Mean values and standard deviation of ten replicates are presented.
ANOVA: * p < 0.05, ** p < 0.01, n.s. = not significant.