Skip to main content

Table 3 Effects of photoperiods and light qualities on chlorophyll fluorescence 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)

Fv/Fo

Fv/Fm

Y(II)

qP

NPQ/4

ETRII

8

R/B

1.374 ± 0.105b dec

0.814 ± 0.009 cd

0.034 ± 0.003 e

0.078 ± 0.004 cde

0.192 ± 0.026 b

2.428 ± 0.220 e

R/B/P

1.348 ± 0.049 de

0.812 ± 0.005 cde

0.036 ± 0.002 e

0.038 ± 0.003 f

0.234 ± 0.007 a

1.697 ± 0.057 e

R/B/P/G

1.754 ± 0.037 ab

0.854 ± 0.002 a

0.050 ± 0.005 cd

0.095 ± 0.007 bc

0.171 ± 0.007 ab

5.074 ± 0.638 bc

W

1.402 ± 0.079 de

0.803 ± 0.005 def

0.050 ± 0.00 cd

0.072 ± 0.006 de

0.164 ± 0.017 de

3.533 ± 0.153 d

16

R/B

1.283 ± 0.070 e

0.792 ± 0.013 ef

0.035 ± 0.004 e

0.062 ± 0.001 e

0.217 ± 0.010 a

3.241 ± 0.236 d

R/B/P

1.300 ± 0.092 de

0.788 ± 0.010 f

0.035 ± 0.002 e

0.064 ± 0.010 e

0.168 ± 0.011 cde

3.413 ± 0.250 d

R/B/P/G

1.422 ± 0.051 de

0.784 ± 0.018 f

0.064 ± 0.003 ab

0.138 ± 0.014 a

0.151 ± 0.013 e

6.585 ± 0.265 a

W

1.287 ± 0.028 e

0.802 ± 0.014 def

0.059 ± 0.006 bc

0.102 ± 0.003 b

0.220 ± 0.008 a

5.711 ± 0.575 b

24

R/B

1.439 ± 0.050 d

0.792 ± 0.016 ef

0.040 ± 0.005 de

0.077 ± 0.004 de

0.150 ± 0.010 e

4.817 ± 0.324 c

R/B/P

1.573 ± 0.015 c

0.826 ± 0.014 bc

0.043 ± 0.004 de

0.031 ± 0.023 f

0.189 ± 0.021 bc

4.344 ± 0.820 c

R/B/P/G

1.691 ± 0.072 bc

0.843 ± 0.002 ab

0.071 ± 0.007 a

0.086 ± 0.009 bcd

0.161 ± 0.019 de

7.311 ± 0.019 a

W

1.854 ± 0.162 a

0.843 ± 0.014 ab

0.048 ± 0.004 d

0.097 ± 0.008 b

0.179 ± 0.017 bcd

4.933 ± 0.379 bc

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 0.01 < P < 0.05 and P < 0.01, respectively