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Table 3 Effects of K-deficiency on stomatal characteristics of leaves and siliques

From: The photosynthetic and structural differences between leaves and siliques of Brassica napus exposed to potassium deficiency

Organs

Treatment

Frequency (no. mm−2)

Length (μm)

Width (μm)

Single pore area (μm2)

Total pore area (μm2)

Leaf

-K

348.5 ± 7.5a1

8.51 ± 0.21b

3.10 ± 0.12b

21.19 ± 1.12b

7.39 ± 0.44b

+K

352.6 ± 10.8a

10.26 ± 0.26a

3.57 ± 0.12a

29.58 ± 0.71a

10.43 ± 0.57a

Silique

-K

72.79 ± 4.76a*2

13.39 ± 0.30b*

6.40 ± 0.25b*

65.15 ± 3.43b*

4.39 ± 0.19b*

+K

71.07 ± 2.21a*

14.05 ± 0.20a*

7.47 ± 0.24a*

78.73 ± 2.43a*

5.60 ± 0.17a*

  1. Data represent mean ± standard error (SE) of at least 20 replicates for stomatal frequency and 50 replicates for other traits
  2. Different letters indicate statistically significant differences (P < 0.05) between the -K and +K treatments
  3. *Indicates statistically significant differences (P < 0.05) between two organs under the same treatment conditions