(ii) Transpiration - process and significance. Ganong's potometer and its limitations. The factors affecting rate of transpiration. Experiments on transpiration. A brief idea of guttation and bleeding.
- Concept of transpiration and its importance to plants.
- Experiments related to transpiration: (a) Loss in weight of a potted plant or a leafy shoot in a test tube as a result of transpiration. (b) Use of cobalt chloride paper to demonstrate unequal rate of transpiration in a dorsiventral leaf.
- Mechanism of stomatal transpiration on the basis of potassium ion exchange theory.
- Adaptations in plants to reduce transpiration.
- A brief idea of guttation and bleeding.