2011-12

2012-13

2011-13

2012-13

2011-12

2012-13

2011-12

2012-13

Seed yield

Aboveground dry matter

Oil yield

Harvest index

Planting dates

(Kg∙ha−1)

Mid-Sept.

2634a

2603

9440

10795

980

965

0.28

0.23

Late-Sept.

2174

2593

8281

9915

814

980

0.26

0.25

Early-Oct.

1944

2388

7499

8541

745

903

0.25

0.27

LSD (0.05)

272

525

525

0.01

DKW4110

1438

2124

7280

9461

522

758

0.20

0.22

DKW4615

2167

2417

7579

9306

843

946

0.28

0.25

RILEY

2805

2838

9534

10271

1052

1076

0.29

0.26

WICHITA

2593

2732

9210

9940

970

1018

0.28

0.26

LSD (0.05)

276

1108

108

0.02

Source of variation

Year (Y)

0.1452

0.0257

<0.2042

0.1120

Planting date (PD)

<0.0007

<0.0001

<0.0014

0.1406

Y x PD

0.0271

0.4662

<0.0184

<0.0001

Variety (V)

<0.001

<0.0001

<0.0001

<0.0001

Y x V

0.0070

<0.0055

<0.0256

<0.0001

PD x V

0.7948

<0.8098

0.7228

0.2225

Y x PD x V

0.6165

<0.9172

0.4596

0.0825