Table II.
Cohort 1 (V5, DOY 185) | Day of Year
|
Treatment
|
Day of Year by Treatment
|
|||
---|---|---|---|---|---|---|
F | P Value | F | P Value | F | P Value | |
Asat | 23.81 | <0.0001 | 1.20 | 0.3175 | 3.98 | 0.0268 |
Vc,max | 65.46 | <0.0001 | 4.21 | 0.0566 | 0.63 | 0.7022 |
Jmax | 52.28 | <0.0001 | 1.29 | 0.2852 | 1.08 | 0.4947 |
Ci inflection | 33.93 | <0.0001 | 1.71 | 0.2288 | 1.76 | 0.2185 |
Vc,max/Jmax | 4.54 | 0.0044 | 0.24 | 0.6269 | 1.10 | 0.3946 |
l | 1.29 | 0.3377 | 12.65 | 0.0034 | 1.76 | 0.1952 |
φCO2,max | 1.57 | 0.3001 | 2.80 | 0.2969 | 0.76 | 0.6334 |
θ | 0.54 | 0.7676 | 0.78 | 0.4060 | 0.45 | 0.8222 |
Cohort 2 (R4, DOY 225) | ||||||
Asata | 66.93 | <0.0001 | 6.14 | 0.0412 | 2.88 | 0.0293 |
Vc,maxa | 76.45 | <0.0001 | 4.65 | 0.0037 | 22.07 | <0.0001 |
Jmaxa | 24.95 | <0.0001 | 27.36 | 0.0020 | 9.11 | 0.0001 |
Ci inflectionb | 51.68 | <0.0001 | 0.01 | 0.9196 | 0.77 | 0.5876 |
Vc,max/Jmaxb | 13.52 | <0.0001 | 1.25 | 0.3056 | 0.88 | 0.5163 |
lb | 13.23 | <0.0001 | 1.69 | 0.2419 | 0.11 | 0.9884 |
φCO2,maxa | 29.25 | <0.0001 | 2.61 | 0.2221 | 8.62 | 0.0005 |
θb | 2.71 | 0.0606 | 0.05 | 0.8279 | 2.04 | 0.1303 |
Jsatb | 19.73 | <0.0001 | 2.94 | 0.1370 | 1.15 | 0.3541 |
φPSII,max,lb | 6.38 | 0.0014 | 0.17 | 0.6854 | 0.25 | 0.9332 |
qPb | 7.94 | <0.0001 | 1.62 | 0.2114 | 2.36 | 0.0613 |
/b | 5.13 | 0.0028 | 0.00 | 0.9777 | 0.42 | 0.8270 |
The F statistic and associated P values were calculated from a repeated measures, mixed model analysis of a randomized complete block design (n = 4).
Value of 0 used for elevated [O3] treatment on DOY = 260, when leaves had senesced.
Calculations through day 255 since plants grown in elevated [O3] did not have leaves.