Harmful effects of transpiration in plants. Transpiration 2022-12-16

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Transpiration is the process by which plants release water vapor into the atmosphere through tiny pores called stomata, which are found on the surface of leaves, stems, and other plant organs. While transpiration is a necessary process for plants to maintain their hydration and regulate their temperature, it can also have harmful effects on the plant if it occurs in excess.

One harmful effect of excessive transpiration is that it can cause the plant to lose a significant amount of water, leading to dehydration. This can be particularly detrimental to plants in hot, dry environments where the rate of transpiration is naturally higher. Dehydration can weaken the plant and make it more vulnerable to diseases and pests, as well as reducing its ability to photosynthesize and grow.

Another harmful effect of transpiration is that it can lead to nutrient imbalances in the plant. When a plant loses water through transpiration, it also loses dissolved nutrients that are essential for its growth and development. This can result in a deficiency of certain nutrients, such as nitrogen, phosphorous, and potassium, which can negatively impact the plant's health.

Excessive transpiration can also affect the plant's ability to regulate its temperature. As water vapor is released through the stomata, it cools the plant's surface, which can help the plant maintain a more stable internal temperature. However, if the rate of transpiration is too high, the plant may not be able to effectively regulate its temperature, leading to heat stress.

There are several factors that can contribute to excessive transpiration in plants, including high temperatures, low humidity, strong winds, and dry soil. To minimize the harmful effects of transpiration, it is important to maintain optimal growing conditions for plants, such as providing adequate water and nutrients, and protecting them from extreme weather conditions.

In conclusion, while transpiration is a necessary process for plants, it can also have harmful effects if it occurs in excess. Dehydration, nutrient imbalances, and temperature regulation issues can all result from excessive transpiration, and it is important to take steps to minimize these negative effects. By maintaining optimal growing conditions and protecting plants from extreme weather conditions, it is possible to minimize the harmful effects of transpiration and promote healthy plant growth.

Effects of Transpiration

harmful effects of transpiration in plants

The hydrological cycle responsible for recycling of water has been shown to keep water, as an essential product for all organisms, be it plants or animals available for use. Vapour pressure deficit control in relation to water transport and water productivity in greenhouse tomato production during summer. Light Light, specifically It has a controlling effect on the opening of the stoma through which water-primarily escapes in a gaseous state. Guttation is very commonly and frequently ob­served from the tips and edges of leaves of grasses, Nasturtium, Colocasia, tomato, etc. Osmotic balance of the cell is maintained by the process of transpiration. World Bank Pollution Prevention and Abatement Handbook , Toward Cleaner Production. The question is, however, sometimes raised whether or not the rate of translocation of solutes in the vessels depends on the rate of transpira­tion.

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Transpiration in Plants

harmful effects of transpiration in plants

The difference in vapour pressure between intercellular spaces and outside atmosphere is large, and the distance between the internal air surface and outside atmosphere is small. This implication, however, completely ignores much evidence that the mechanism of water absorption and the absorption of mineral salts are very different and possibly independent of each other. Combine this with the fact that plants are mostly composed of carbon from CO2 one might wonder how large the effect of reduced mineral availability really is. Environmental Factors and Transpiration: The rate of transpiration of a plant varies from day to day, from hour to hour and frequently still more rapidly. Cuticular Transpiration It is the evaporation of water from the cuticle of the plants.


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[Solved] Effect of transpiration on plant growth

harmful effects of transpiration in plants

The turgour pressure, as we very well know, at its maximum can equalise the osmotic pressure of the cell sap. In this case, a water deficit within the plant may occur leading to the closing of the stomata which is manifested by wilting of leaves. The xylem of a small vein terminates below each air chamber. Why is Transpiration Important? Photosystem-II Photosystem-1 These needed. But the area can only be considered large, if we consider the whole leaf area. Retrieved from Liu, Y. Water scarcity or any other condition which destroys or disrupts their physical structures impairs the activity of these macromole­cules and organelles, which ultimately may have disastrous consequences for plant life.

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Factors Affecting Transpiration & Importance

harmful effects of transpiration in plants

For instance, some plants, such as tobacco need low light intensities, while others may need full sunlight. Release the screw clip to allow water to flow into the Potometer. External or Environmental Factors 2. It indirectly helps in the growth of the plant. Transpiration thus provides a significant cooling effect which keeps the plant from being over heated. In the Vacuoles of the Mature Cells: As has been discussed previously a certain amount of water is absolutely necessary to maintain the normal condition of turgour essential for the growth of the cells also for giving rigidity and erectness to the young plant.

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Environmental Factors Affecting Transpiration in Crop Growth, Productivity

harmful effects of transpiration in plants

Thus the primary function of stomata is not to be thought of as one permitting water loss any more than the function of a main door in a busy office building is to let heat escape from the building in winter. Humidity on the other hand has shown that it impacts on the amounts of clouds in the atmosphere. ADVERTISEMENTS: If the stomata are closed, however, the only effect of evaporation from the cells walls will be gradual saturation of the entire internal atmosphere of the intercellular space with water vapour. Conversely, the entry of water into the guard cells opens the stoma. The stomata are typically open during the daytime, allowing the entry of CO2 and the exit of O2. In general, the stomata close at temperatures of about 0°C and progressively increase in aperture up to about 30°C Devlin 1975. In the case of succulents like cacti, cuticular transpira­tion is usually nil.

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Transpiration

harmful effects of transpiration in plants

Thus, the amount of water available to the roots of most plants is held in the soil by forces between 0-3 atm. Effect on mineral transport: ADVERTISEMENTS: Mineral salts remain dissolved in the soil water and are absorbed by the roots. Many of the supposed effects of structural differences in plants influencing transpiration rates are not, however, verified by experimental evidence. Which will be least limp? It affects the diffusion pressure deficit, thereby indirectly helping diffusion through the cells. In a habitat where deep-rooted and shallow-rooted plants are growing side by side, the former may transpire more rapidly during dry periods than the latter.


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Transpiration

harmful effects of transpiration in plants

It helps in the production of a suction force that helps in the conduction of water and minerals in the plants. Role of transpiration in maintaining optimum salt concentrations: The water absorbed by the soil will have less concentration of salts which is not ideal for the plant growth. It occurs when the soil is unable to meet the requirement of plant for transpiration. At 50% relative humidity at a temperature of 20°C, water potential Ψw of the atmosphere is -93. Though this may appear to have little significance in this topic, it relates to our discussion in that transpiration as a vital process in plants carries out function of injecting the harmful gas into the atmosphere. Cuticle thickness varies widely among plant species.

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Factors Affecting Transpiration: 10 Factors

harmful effects of transpiration in plants

As a considerable amount of water is lost in transpiration, the plant might shunt its growth. Effect on water movement: The absorbed water is transported from roots to leaves through the xylem vessels which is greatly influenced by transpiration pull. If little water is available to the plants, then it results in the dehydration of the leaf, causing stomatal closure in the mechanism of stomatal transpiration, which decreases the rate of transpiration. It is because the leaf interior has a nearly saturated air in its intercellular spaces. Increase in temperature increases the permeability of the unthickened part of the cell wall of the guard cells, thereby facilitating rapid entry of water into the guard cells.

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