Imaging parameters

1

Shoot area smoothed

SAsm

kPix^{a}

Smoothing spline fit to total projected shoot area data for each plant

2

Absolute growth rate smoothed 32–40

AGR32

kPix/d^{b}

Difference in smoothed Shoot Area between days 32th and 40th after planting, divided by the length of the period

3

Absolute growth rate smoothed 42–50

AGR42

kPix/d

Difference in smoothed Shoot Area between days 42th and 50th after planting, divided by the length of the period

4

Absolute growth rate smoothed 52–59

AGR52

kPix/d

Difference in smoothed Shoot Area between days 52th and 59th after planting divided by the length of the period

5

Relative growth rate smoothed 32–40

RGR32

d^{−1}

Difference in the logarithm of the smoothed Shoot Area at days 32th and 40th after planting, divided by the length of the period

6

Relative growth rate smoothed 42–50

RGR42

d^{−1}

Difference in the logarithm of the smoothed Shoot Area at days 42th and 50th after planting, divided by the length of the period

7

Relative growth rate smoothed 52–59

RGR52

d^{−1}

Difference in the logarithm of the smoothed Shoot Area at days 52th and 59th after planting, divided by the length of the period

8

Convex hull area integral^{c}

CHA

kPix

Smallest geometrical object without concave parts that covers whole plant, top view image

9

Caliper length integral

CL

kPix

Max. distance between two points on the object boundary, top view image

Harvest parameters

10

Fresh weight

FW

g

Weight of fresh biomass per pot

11

Dry weight

DW

g

Weight of oven dried biomass per pot

12

Plant height

HEI

cm

Plant height measured from bottom to leaf tip

13

Tiller number

TN
 
Number of tillers per pot

Indices

14

Water use efficiency

WUE

g/g
water

Harvested dry biomass per plant/total amount of irrigation water
