Amax
|
Flag leaf light & CO2 saturated
photosynthesis |
μmol m−2 s-1
|
n.a. |
Amax variation |
Rel. Amax (e-CO2/ambient) |
unitless |
Amax (e-CO2) / Amax
(ambient) |
Yield |
Grain yield |
g plant-1
|
|
Yield variation |
Rel. yield (e-CO2 / ambient) |
unitless |
Yield (e-CO2) / yield
(ambient) |
ETR |
Electron transport rate |
μmol mol−1
s-1
|
ETR = φPSII × PAR × 0.84 × 0.5 |
Leaf area |
Flag leaf area |
cm² |
Leaf area * Leaf width *
0.725 |
Leaf length |
Flag leaf length |
cm |
n.a. |
Leaf width |
Flag leaf width |
cm |
n.a. |
Leaf sucrose |
Flag leaf [sucrose] |
mg g-1
|
n.a. |
Leaf starch |
Flag leaf [starch] |
mg g-1
|
n.a. |
Panicle spikelet nb |
Spikelets nb per panicle |
unitless |
n.a. |
Panicle sink potential |
Product of spikelet nb & filled grain weight |
g |
Panicle spikelet nb * 1000 grain wt |
SLA |
Specific leaf area |
cm² g-1
|
Flag leaf area /
dry weight |
SPAD |
Flag leaf areal chlorophyll content |
unitless |
n.a. |
1000 grain wt |
Dry wt of 1000 filled grains |
g |
n.a. |
Tiller nb max |
Tiller nb/plant |
unitless |
n.a. |
Tot. shoot dry matter |
Aboveground dw at maturity |
g
plant-1
|
n.a. |
Proxy traits: |
|
|
|
LSSR |
Local source-sink ratio |
unitless |
Flag leaf area / Panicle
spikelet nb |
LSSRsink
|
LSSR based on sink potential |
unitless |
Flag leaf area / (Panicle spikelet nb * 1000 grain wt) |
LSSRsink*SPAD |
|
unitless |
(Flag leaf area * SPAD) /
(Panicle spikelet nb * 1000 grain wt) |