Series

Experiment

Accumulated temperature ˚C above 0˚C

Mean temperature ˚C

Daily temperature range ˚C

6 wk

9 wk

1

721

1091

17.3

24.3

1

2

1133

1518

21.4

16.3

3

737

1080

17.4

11.7

1

757

1137

17.8

13.6

2

2

764

1155

18.0

13.6

3

782

1196

18.7

12.8

4

1185

1802

27.7

14.2