Skip to main content

Table 1 Effects of photoperiods and light qualities on the growth of C. lanceolata in vitro culture plantlets

From: Effects of LED photoperiods and light qualities on in vitro growth and chlorophyll fluorescence of Cunninghamia lanceolata

Photoperiod/ h·d− 1 (A)

Light qualitya (B)

Height/cm

Dry weight /mg

Rooting rate/%

Average root number

Root length/cm

Root surface area/cm2

Root volume/cm3

8

R/B

1.73 ± 0.05b ic

23.07 ± 0.03 i

32.50 ± 1.50 h

0.51 ± 0.03 j

1.10 ± 0.02 k

0.33 ± 0.05 k

0.34 ± 0.02 i

R/B/P

1.65 ± 0.03 j

34.61 ± 1.01 e

10.17 ± 0.93 i

0.20 ± 0.02 k

0.30 ± 0.01 l

0.08 ± 0.01 l

0.12 ± 0.01 j

R/B/P/G

2.07 ± 0.06 g

29.21 ± 1.02 g

76.53 ± 2.83 c

2.06 ± 0.02 g

1.47 ± 0.01 i

0.47 ± 0.02 i

0.62 ± 0.02 g

W

1.98 ± 0.03 h

23.15 ± 2.01 i

67.53 ± 1.23 e

2.47 ± 0.04 f

1.27 ± 0.22 j

0.46 ± 0.01 j

0.44 ± 0.05 h

16

R/B

2.40 ± 0.02 d

37.22 ± 3.01 c

72.70 ± 3.03 d

2.85 ± 0.03 e

2.52 ± 0.20 c

0.66 ± 0.01 e

0.78 ± 0.05 d

R/B/P

2.44 ± 0.03 d

46.13 ± 3.42 a

65.83 ± 4.50 f

3.61 ± 0.03 d

3.85 ± 0.11 d

1.18 ± 0.05 c

0.80 ± 0.04 c

R/B/P/G

2.63 ± 0.02 b

32.77 ± 2.12 f

95.50 ± 3.04 a

4.45 ± 0.04 b

5.95 ± 0.30 a

1.92 ± 0.07 a

1.02 ± 0.02 a

W

2.41 ± 0.02 d

20.53 ± 0.93 j

86.60 ± 3.51 b

4.63 ± 0.05 a

4.71 ± 0.50 b

1.49 ± 0.03 b

1.02 ± 0.05 a

24

R/B

2.71 ± 0.01 a

35.47 ± 3.02 d

85.37 ± 3.78 b

1.85 ± 0.10 h

2.42 ± 0.27 e

0.72 ± 0.01 d

0.93 ± 0.03 b

R/B/P

2.52 ± 0.02 c

43.27 ± 3.52 b

67.40 ± 2.00 e

2.43 ± 0.02 f

2.04 ± 0.21 f

0.55 ± 0.02 g

0.72 ± 0.02 e

R/B/P/G

2.12 ± 0.02 f

36.90 ± 3.46 c

75.60 ± 2.02 c

3.92 ± 0.03 c

1.85 ± 0.26 g

0.63 ± 0.05 f

0.72 ± 0.04 e

W

2.21 ± 0.02 e

27.17 ± 2.31 h

61.40 ± 1.87 g

1.46 ± 0.03 i

1.56 ± 0.43 h

0.50 ± 0.02 h

0.66 ± 0.05 f

F-test

A

**

**

**

**

**

**

**

 

B

**

**

**

**

**

**

**

 

A × B

**

**

**

**

**

**

**

  1. a The light qualities are R/B (88.9% red+ 11.1% blue), R/B/P (80.0% red+ 10.0% blue+ 10.0% purple), R/B/P/G (72.7% red+ 9.1% blue+ 9.1% purple+ 9.1% green), W (12.7% red+ 3.9% blue+ 83.4% green)
  2. b mean ± standard deviation, n = 3
  3. c Any two means within a column not followed by the same letter are significantly different at P < 0.05 by ANOVA on Duncan’s multiple range test
  4. ** mean significant at P < 0.01