Table 2 Calculations and definitions of fluorescence phenotypes (Strasser et al. 2000) with categorization, broad sense heritability (H²) and p-values of genotype (G), environment (E) and genotype by environment interaction (GxE) effects on fluorescence phenotypes

1

Primary fluorescence phenotypes

F₀

Minimum Fluorescence

<.0001

<.0001

2

F_J

Fluorescence intensity at the J-step (2 ms)

<.0001

<.0001

3

F_I

Fluorescence intensity at the I-step (60 ms)

<.0001

<.0001

4

F_M

Maximum fluorescence

<.0001

<.0001

5

F_V

F_M − F₀

Variable fluorescence

<.0001

<.0001

6

V_J

(F_J − F₀)/(F_M − F₀)

Variable Fluorescence at the J-step

<.0001

<.0001

7

V_I

(F_I − F₀)/(F_M − F₀)

Variable fluorescence at the I-step

<.0001

<.0001

8

Relative phenotypes

F_M/F₀

<.0001

<.0001

9

F_V/F₀

(F_M − F₀)/F₀

Maximum efficiency of photochemistry

<.0001

<.0001

10

F_V/F_M

(F_M − F₀)/F_M

Maximum yield of primary photochemistry

<.0001

<.0001

11

Extracted phenotypes

M₀

4(F₃₀₀μs − F₀)/(F_M − F₀)

Rate of reaction center closure

<.0001

<.0001

12

N

(Area/(F_M − F₀))x M₀ x(1/V_J)

turn-over number Q_A reduction events between time 0 and Fm

<.0001

0.0194

13

φ_Po

1 − (F₀/F_M)

Maximum yield of primary photochemistry (Fv/Fm)

<.0001

<.0001

14

ψ₀

1 − V_J

Likelihood that a trapped exciton can move an electron further than Q_A⁻

<.0001

<.0001

15

φ_Eo

(1 − (F₀/F_M))x Ψ₀

Quantum yield of electron transport

<.0001

<.0001

16

φ_Do

1 − φ_Po

Quantum yield at time 0 for energy dissipation

<.0001

<.0001

17

PI_ABS

\( \left(\frac{RC}{ABS}\right)x\left(\frac{\varphi_{Po}}{1-{\varphi}_{Po}}\right)x\left(\frac{\varPsi_0}{1-{\varPsi}_0}\right) \)

Performance Index of PSII normalized for equal absorption

<.0001

<.0001

18

Energy flux phenotypes

ABS/RC

M₀x(1/V_J)x(1/φ_Po)

Energy absorption by antenna per reaction center

<.0001

<.0001

19

TR₀/RC

M₀x(1/V_J)

Flux of excitons trapped per reaction center

<.0001

0.1487

20

ET₀/RC

M₀x(1/V_J)x Ψ₀

Energy flux for electron transport per reaction center

<.0001

<.0001

21

DI₀/RC

(ABS/RC) − (TR_o/RC)

Flux ratio of energy dissipation per reaction center

<.0001

<.0001