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 [...]
In this article we will discuss about the meaning and types of stomata. Meaning of Stomata: Stomata are very minute openings found in the epidermal layer of leaves, stem and other aerial parts of the plant. Each stoma remains surrounded by two kidney-shaped or bean-shaped cells called guard cells. Chloroplasts are always present in the guard cells. The inner wall [...]