Table 7.
Characteristics | Correlation with yield | Direct effect | Indirect effect via | |||||||
---|---|---|---|---|---|---|---|---|---|---|
A | gs | E | WUE | fo | fv/fo | fv/fm | TCC | |||
A | 0.8762 | 0.8113 | - | 0.0002 | 0.0331 | 0.0971 | 0.0102 | 0.0311 | 0.0015 | 0.0067 |
gs | 0.7762 | 0.7211 | 0.0012 | - | 0.0241 | 0.0081 | 0.0011 | 0.0204 | 0.0021 | 0.0054 |
E | 0.6543 | 0.6065 | 0.0143 | 0.0061 | - | 0.0327 | 0.0243 | 0.0562 | 0.0006 | 0.0034 |
WUE | 0.8861 | 0.8021 | 0.0032 | 0.0055 | 0.0014 | - | 0.0013 | 0.0012 | 0.0043 | |
fo | 0.4562 | 0.3991 | 0.005 | 0.0028 | 0.0041 | 0.0012 | - | 0.0002 | 0.0234 | 0.0012 |
fv/fo | 0.0982 | 0.0012 | 0.0032 | 0.0026 | 0.0004 | 0.0131 | 0.0321 | - | 0.0042 | 0.0026 |
fv/fm | 0.7653 | 0.7142 | 0.0024 | 0.0054 | 0.0012 | 0.0091 | 0.0034 | 0.1231 | - | |
TCC | 0.8764 | 0.7921 | 0.0001 | 0.0076 | 0.0123 | 0.0003 | 0.0122 | 0.0062 | 0.0432 | - |
Notes: A = net photosynthesis; gs = stomatal conductance; E = transpiration rate; WUE = water use efficiency; fo = initial fluorescence; fv/fo = maximum quantum yield of photochemical and non-photochemical process in photosystem II; fv/fm = maximum efficiency of photosystem II and TCC = total chlorophyll content. Residual factor = = 0.350.