Actual time period

Experiment time period

Mean day length (hours)

Mean air temperature (˚C) at seed origin

Soil temperature (˚C)

P_s

P_nm1

P_nm2

Day

Night

Apr. 16-30

Nov. 20-30

14.14

14.56

15.11

8

1

3

May 01-15

Dec. 01-15

14.91

15.50

16.29

10

4

7

May 16-31

Dec. 16-31

15.56

16.32

17.35

14

7

9

Jun. 01-15

Jan. 01-15

15.98

16.85

18.08

17

9

12

Jun. 16-30

Jan. 16-31

16.08

16.98

18.26

20

12

14

Jul. 01-15

Feb. 01-14

15.87

16.72

17.89

22

14

16

Jul. 16-31

Feb. 15-28

15.38

16.08

17.04

22

14

16

Aug. 01-15

Mar. 01-15

14.68

15.21

15.93

22

14

15

Aug. 16-31

Mar. 16-31

13.86

14.22

14.68

21

13

15

Sep. 01-15

Apr. 01-15

12.98

13.16

13.40

18

11

13

Sep. 16-30

Apr. 16-30

12.11

12.12

12.13

14

8

10

Oct. 01-15

May 01-15

11.24

11.08

10.87

12

5

8

Oct. 16-31

May 16-31

10.36

10.02

9.58

7

2

6