TABLE 1.
Water transpiration rates from different leaf sides and different cuticle layers.
K | TAd | TAb | TAb–C | TAd/intra | TAb/intra | TAb/intra–C | |
(mg h–1.cm–2) | (mg h–1.cm–2) | (mg h–1.cm–2) | (mg h–1.cm–2) | (mg h–1.cm–2) | (mg h–1.cm–2) | ||
1 h | 0.206 ± 0.019 | 0.094 ± 0.011e | 0.199 ± 0.006c | 0.142 ± 0.002d | 0.104 ± 0.002e | 0.452 ± 0.008a | 0.413 ± 0.004b |
2 h | 0.211 ± 0.022 | 0.095 ± 0.012e | 0.190 ± 0.005c | 0.133 ± 0.003d | 0.097 ± 0.005e | 0.437 ± 0.009a | 0.398 ± 0.003b |
3 h | 0.224 ± 0.035 | 0.069 ± 0.003d | 0.198 ± 0.017b | 0.141 ± 0.013c | 0.077 ± 0.010d | 0.422 ± 0.022a | 0.383 ± 0.017a |
4 h | 0.213 ± 0.036 | 0.061 ± 0.007d | 0.189 ± 0.023b | 0.132 ± 0.019c | 0.087 ± 0.005d | 0.417 ± 0.012a | 0.378 ± 0.006a |
5 h | 0.238 ± 0.031 | 0.053 ± 0.010e | 0.154 ± 0.017c | 0.096 ± 0.013d | 0.078 ± 0.013de | 0.426 ± 0.006a | 0.387 ± 0.004b |
6 h | 0.293 ± 0.034 | 0.029 ± 0.014e | 0.172 ± 0.005c | 0.115 ± 0.008d | 0.048 ± 0.006e | 0.405 ± 0.012a | 0.365 ± 0.006b |
K: Vaseline diffusion coefficient; TAd: adaxial cuticular transpiration rate; TAb: abaxial transpiration rate; TAb–C: abaxial cuticular transpiration rate; TAd/intra: adaxial intracuticular transpiration rate; TAb/intra: abaxial intra transpiration rate; TAb/intra–C: abaxial intracuticular transpiration rate. Data are given as means ± standard error (n = 6). The different letters in the same row indicate significant difference among treatments at the 0.05 level.