Which of the following is antitranspirants?
The anti-transpirants that works by this process are Phenyl Mercury Acetate (given as option A), ABA and Aspirin (given as option B) whereas the film-forming anti-transpirants form a colourless film on the leaf surface that allows only the diffusion of gases and not of the water vapours, for example, silicon oil (given …
What is antitranspirant in botany?
Definition of antitranspirant : a substance (such as pine oil) that is usually sprayed on plant surfaces (as of the leaves and stems) to reduce transpiration and inhibit water loss.
What is stomatal closing type antitranspirants?
Stomata closing type: They reduce water loss through closing stomata. Examples are Phenyl mercuric acetate(PMA), Atrazine, and CO2. Film-forming: Checks transpiration loss due to the formation of thin-film which acts as a physical barrier.
What is antitranspirants in agriculture?
Antitranspirants are the materials or chemicals which decrease the water loss from plant leaves by reducing the size and number of stomata. Recently, efforts have been made to find substances, which when applied to the plant, reduce transpiration, i.e. antitranspirant materials.
Is auxin an antitranspirant?
a. Auxin. Hint: An antitranspirant hormone reduces the transpiration process by closing the stomata during the water stress conditions. …
Is cobalt chloride an antitranspirant?
Cobalt chloride is used to indicate the presence of humidity in the atmosphere which is a reason for the transpiration. Although it is not an antitranspirant but is an indicator for the detection of transpiration.
Is auxin an Antitranspirant?
What is plant guttation?
Guttation is the appearance of little droplets of liquid on the leaves of plants. Some people notice it on their houseplants and expect the worst. Although unsettling the first time it happens, guttation in plants is completely natural and not harmful.
What are antitranspirants How do they inhibit the rate of transpiration?
Antitranspirants may reduce transpiration in three different ways: By reducing the absorption of solar energy and thereby reducing leaf temperatures and transpiration rates. By promoting closure of stomata (by affecting the guard cells around the stomatal pore), thus decreasing the loss of water vapours from the leaf.
How does guttation differ from transpiration?
Transpiration is the removal of water from the stomata present on the leaves. On the contrary, guttation is the process of removal of water from the hydathodes.
Is cytokinin an antitranspirant?
– Cytokinin, a plant hormone primarily responsible for cell division and leaf senescence in plants. – Gibberellin is a phytohormone, responsible for several developmental processes such as seed germination, stem elongation in young plants, trigger floral development, etc. Hence, The correct answer is option (C).
What are antitranspirants give examples?
Examples include phenylmercury acetate, abscisic acid (ABA), and aspirin. Film-forming antitranspirants form a colorless film on the leaf surface that allows diffusion of gases but not of water vapour. Examples include silicone oil, waxes.
What are anti-antiranspirants?
Antitranspirants Antitranspirants are the materials or chemicals which decrease the water loss from plant leaves by reducing the size and number of stomata. Nearly 99 per cent of the water absorbed by the plant is lost in transpiration. Antiranspirants and is any natural applied to transpiring plant surfaces for reducing water loss from the plant.
How do antitranspirants control transpiration in plants?
These antitranspirants may control transpiration either by filming the leaf surface or by the regulation of stomatal aperture. Antitranspirants are the materials or chemicals which decrease the water loss from plant leaves by reducing the size and number of stomata. Nearly 99 per cent of the water absorbed by the plant is lost in transpiration.
What are some examples of anti transpirant coatings?
Examples include silicone oil and waxes. TransFilm Anti-Transpirant coats leaf surfaces with a clear, glossy film that provides a water-impermeable layer to protect the plant and decrease the rate of transpiration. Loading more products
Does antitranspirant increase yield?
Therefore it is unlikely that currently available antitranspirant would increase yield of an annual crop unless crop suffers stressed from inadequate water and or a very high evaporative demand, particularly during a moisture sensitive stage of development.