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Chemical and Biological Technologies in Agriculture

Table 3 Leaf transpiration rate, water conductance, photosynthesis rate and proline concentration of plants under different lead and cadmium treatments

From: Interaction of lead and cadmium on growth and leaf morphophysiological characteristics of European hackberry (Celtis australis) seedlings

Treatments

mg L −1

Transpiration rate (mmol H2O/m2/s)

Water conductance (mole H2O/m2/s)

Net photosynthesis (µmol CO2/m2/s)

Leaf proline (µmol/g FW

Lead levels

0

1.2a

0.024a

1.8a

4.1b

15

0.95b

0.015b

1.3b

5.5a

30

0.81b

0.01b

0.97c

5.8a

Cadmium levels

0

1.13a

0.02a

1.5a

4.4b

5

0.85b

0.012b

1.3a

5.8a

  1. The lead and cadmium levels were applied to pots via irrigation water, 2–3 times per week for 6 months
  2. Data are average of 4 replications. For each trait and at each heavy metal levels, means with different letter (a, b or c) are significantly different at 5% level of LSD test
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