Model

Species/vari-eties

Dark respiration rate

Light compensation point

Light saturation point

Maximum net photosynthetic rate

R²

R² average value

RE

RE average value

Rectangular hyperssions model

C. angustifolium subsp. circumvagum

1.602

10.560

292.380

13.788

0.964

0.970

0.359

0.616

C. angustifolium

1.677

13.758

408.400

21.332

0.982

0.393

C. conspersum

1.947

9.852

333.600

25.298

0.964

1.345

C. latifolium

2.346

13.506

377.330

25.210

0.970

0.366

Nonrectangular hyperssions model

C. angustifolium subsp. circumvagum

0.829

11.243

259.490

12.232

0.984

0.987

0.242

0.306

C. angustifolium

0.675

10.086

359.710

18.750

0.990

0.311

C. conspersum

0.346

4.048

283.790

21.513

0.989

0.275

C. latifolium

0.799

9.660

326.080

21.739

0.983

0.396

Exponential model

C. angustifolium subsp. circumvagum

1.099

12.673

333.981

11.231

0.988

0.989

0.189

0.373

C. angustifolium

1.051

14.105

405.842

17.346

0.994

0.241

C. conspersum

1.057

8.600

326.787

21.062

0.989

0.733

C. latifolium

1.067

10.262

426.734

20.478

0.987

0.329

Modified model of rectangular hyperbola

C. angustifolium subsp. circumvagum

1.183

11.090

844.411

11.872

0.999

0.998

0.063

0.216

C. angustifolium

0.916

11.095

1147.728

17.797

0.999

0.064

C. conspersum

1.151

8.519

965.082

22.073

0.997

0.617

C. latifolium

1.299

11.620

1023.592

21.388

0.996

0.121

The measured values

C. angustifolium subsp. circumvagum

1.047

11.848

800.000

11.862

C. angustifolium

1.092

11.504

1200.000

18.062

C. conspersum

0.427

4.931

1000.000

21.888

C. latifolium

1.470

15.946

1000.000

23.067