This article will guide you about how to determine stomatal frequency and stomatal index. Stomatal frequency can be defined as the number of stomata present per unit area of a leaf. Determination of stomatal frequency and the total area of stomata covered in a leaf are the essential prerequisite to assess the rate of water loss through stomata. Several environmental [...]
In this article we will discuss about the occurrence and position of stomata in epidermis. Stoma occurs in the epidermises of any of the aerial parts of plants. It occurs in Bryophytes, Pteridophytes and Spermatophytes. In Bryophyta stoma is found on the capsules of Anthocerotopsida and Bryopsida. In Marcnantiopsida stomata are absent; instead pores are present on the surface of [...]
The following points highlight the ten important factors that affecting transpiration. The factors are: 1. Relative Humidity 2. Atmospheric Temperature 3. Light 4. Air Movements 5. Atmospheric Pressure 6. Availability of Water 7. Leaf Area 8. Leaf Structure 9. Root/Shoot Ratio 10. Mucilage and Solutes. Factor # 1. Relative Humidity: Relative humidity is the percentage of water vapour present in [...]