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Table 1 Effect of fungal strains on seed germination and protocorm development of D. officinale at 15 weeks of inoculation

From: Effect of different mycobionts on symbiotic germination and seedling growth of Dendrobium officinale, an important medicinal orchid

Treatment

Ratio of seed germination and protocorm development (%)b

Total germination (%)c

Stage 0

Stage 1

Stage 2

Stage 3

Stage 4

Stage 5

Controla

25.72 ± 2.85b

60.04 ± 4.34a

14.24 ± 3.07d

0.00 ± 0.00d

0.00 ± 0.00b

0.00 ± 0.00b

14.24 ± 3.07d

S2

8.77 ± 1.30c

6.56 ± 3.95bc

25.97 ± 5.41c

50.23 ± 8.08a

8.48 ± 4.00b

0.00 ± 0.00b

84.67 ± 8.85a

S3

41.82 ± 2.63a

9.23 ± 0.67bc

14.86 ± 0.90d

28.94 ± 3.11b

5.14 ± 2.16b

0.00 ± 0.00b

48.95 ± 4.02c

S4

12.87 ± 10.01c

12.92 ± 5.41b

40.86 ± 8.43b

28.53 ± 2.59bc

4.69 ± 0.83b

0.00 ± 0.00b

74.08 ± 7.31b

S5

9.15 ± 1.95c

8.01 ± 1.24bc

64.20 ± 2.73a

18.80 ± 1.39c

0.00 ± 0.00b

0.00 ± 0.00b

83.00 ± 1.39ab

S6

5.47 ± 1.96c

10.40 ± 5.98b

37.43 ± 7.03b

23.60 ± 8.49bc

19.97 ± 6.49a

1.35 ± 1.09b

86.35 ± 3.07a

S7

5.10 ± 2.60c

1.83 ± 2.28c

7.08 ± 6.58d

7.84 ± 3.56d

19.20 ± 9.80a

59.17 ± 8.78a

93.29 ± 4.20a

  1. aControl, the seeds without fungal inoculation
  2. bGermination percentages (mean ± SE, n = 3) within columns marked by different letters are significantly different at P < 0.05 (Fisher’s protected least significant difference test)
  3. cGermination was defined as emergence of the embryo from the seed coat (stage 2)