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Table 3 Effects of exogenous GR24 treatments on chlorophyll contents in leaves of cucumber seedlings under low light stress

From: Physiological mechanism of strigolactone enhancing tolerance to low light stress in cucumber seedlings

Treatments

Chl a (mg·g−1)

Chl b (mg·g− 1)

Total Chl (mg·g− 1)

Chl a/b

Cont

1.50 ± 0.02b

0.94 ± 0.02b

2.44 ± 0.02a

1.59 ± 0.04b

Cont+ GR24

1.53 ± 0.03b

0.90 ± 0.01bc

2.43 ± 0.02a

1.70 ± 0.05a

LL

1.05 ± 0.03c

1.15 ± 0.01a

2.20 ± 0.04b

0.91 ± 0.02c

LL + GR24

1.59 ± 0.01a

0.88 ± 0.03c

2.47 ± 0.04a

1.80 ± 0.06a

  1. Note: The growth of cucumber seedlings was significantly inhibited under different treatments for 7 d. The values are the means ± SEs (n = 3). The different letters indicate significant differences at P < 0.05 according to Duncan’s multiple range test. Cont, 0 μM GR24 + 500μmolm− 2s−1PPFD; Cont+GR24, 10 μM GR24 + 500μmolm− 2 s− 1 PPFD; LL, 0 μM GR24 + 60μmolm− 2 s− 1 PPFD; LL + GR24, 10 μM GR24 + 60μmolm− 2 s− 1 PPFD
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BMC Plant Biology

ISSN: 1471-2229

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