Active tillering stage

Flowering stage

Treatments

Root length (cm)

Root volume

(cc・hill-1)

Root dry weight

(g・hill−1)

Root length (cm)

Root volume

(cc・hill−1)

Root dry weight

(g・hill−1)

I1N1

11.5

12.1

1.8

14.6

18.6

6.2

I1N2

11.2

12.6

2.0

14.9

16.5

7.1

I1N3

12.6

13.7

2.4

15.4

17.8

7.8

I1N4

13.2

14.4

3.5

21.2

19.6

8.9

I1N5

12.7

13.8

3.1

19.5

19.2

8.1

I1N6

14.3

15.6

4.2

21.5

22.6

11.5

I2N1

11.8

13.2

2.2

15.2

19.5

7.8

I2N2

12.1

13.7

2.5

15.5

21.1

8.2

I2N3

12.5

15.1

2.9

16.6

21.5

8.7

I2N4

13.2

15.4

3.9

21.7

22.5

11.5

I2N5

12.9

14.2

3.4

20.2

21.7

10.6

I2N6

15.7

16.2

4.8

23.6

25.4

13.8

I3N1

10.8

13.8

2.8

13.5

20.4

8.5

I3N2

10.9

14.1

3.1

14.2

21.6

9.2

I3N3

11.1

14.4

3.7

14.6

22.3

9.6

I3N4

12.5

16.0

5.5

18.4

23.5

12.4

I3N5

12.0

14.8

4.5

17.6

22.6

12.2

I3N6

13.5

16.9

6.7

20.8

26.8

15.3

I4N1

10.9

14.8

4.6

12.6

19.5

8.9

I4N2

11.2

15.1

4.9

12.8

23.1

9.6

I4N3

11.3

15.7

5.0

13.5

23.5

10.5

I4N4

11.9

16.1

6.3

15.1

28.8

13.8

I4N5

11.7

15.8

5.7

14.8

26.3

13.4

I4N6

12.5

18.9

7.9

16.6

30.5

14.8

I5N1

10.2

14.3

4.9

12.0

21.7

9.4

I5N2

10.9

14.9

5.1

12.6

24.8

10.2

I5N3

11.0

15.5

5.5

13.7

25.3

11.7

I5N4

11.5

19.2

6.8

14.4

29.4

15.5

I5N5

11.3

16.9

6.2

13.5

28.6

14.2

I5N6

11.6

20.3

8.3

14.6

32.8

16.4

S.Ed.

0.50

0.71

0.25

0.79

1.32

0.59

C.D. (0.05)

1.03

1.47

0.51

1.63

2.73

1.22