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Experiment No 6

Experiment No 6. Determination of transpiration by using CoCl 2 filter paper method. Introduction. Transpiration is the loss of water in form of vapors from the areal parts of living plants and the movement of the vapors in the external atmosphere. Regulation of Transpiration .

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Experiment No 6

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  1. Experiment No 6 Determination of transpiration by using CoCl2 filter paper method

  2. Introduction • Transpiration is the loss of water in form of vapors from the areal parts of living plants and the movement of the vapors in the external atmosphere. • Regulation of Transpiration

  3. Environmental factors that affect the rate of transpiration • Importance of Transpiration • Regulation of Transpiration • Driving force for Transpiration

  4. Material and Chemicals • 3% CoCl2 • HCl • Filter paper • Beaker • Digital Balance • Distilled Water • Oven

  5. Procedure • Prepare 3% CoCl2 solution by dissolving 3 grams of Cobolt Chloride in 100 ml of H2O. • Add 2-3 drops of HCl to this solution. • Cut filter paper according to the size of leaf and dip into the solution. • Dry filter paper using oven. • Filter paper will change its color from pink to blue. • Attach filter paper to the leaf. • Observe the result.

  6. Observation • Filter paper will change its color from blue to pink , which is the indication of water evaporation from that leaf.

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