Transpiration system of plant

Life without water is unimaginable. The plant mainly absorbs its essential water through the roots and a very small portion of the water is expended for various biological functions of the plant. The remaining ribbon is expelled through the gaseous part of the plant. The physiological process by which a terrestrial plant usually expels water through its gaseous organs is the process of perspiration or evaporation. This work is done on the basis of which part of its gaseous organ, on the basis of which they are divided into three types of rice, namely: peritoneal perfusion, cuticular perfusion and lenticular perfusion.

External influencer (i) Temperature: Transpiration is more with temperature variation. As it increases, the water vapor capacity of the atmosphere increases. As a result, relative humidity: the amount of water vapor in the air, the higher the temperature of the air, the easier it is for water to evaporate, so the perspiration process is accelerated, so the rate of perspiration decreases as the temperature decreases. The relative rate of im capacity is called relative humidity. Despite having air in an area, it can get wet due to the low capacity of the atmosphere. Relative humidity is low. Air remains unsaturated and can absorb water vapor, but if it is too high, the air loses its water vapor capacity. When the relative humidity is low, the rate of perspiration increases and if it is high, the rate decreases. (ii) Light: In the presence of light, the pores open, so that the rate of perspiration does not increase but this process stops as the pores remain closed in the dark. Due to the difference in size, there may be increase or decrease in size. As a result, the rate of perspiration also goes up and down. Alae also affects the process of perspiration by increasing the body heat. (iv) Wind: As a result of perspiration, the air around the plant gets wet, so the rate of this process decreases. When the airflow moves the saturated air away, this rate gets higher again. As a result of air flow, the leaves move and the pressure of the leaves falls. The result is more yes. The water vapor comes out of the moat. Due to these reasons, the rate of perspiration also varies with the flow of air. As the house air pressure increases, the evaporation action decreases, resulting in less perspiration. Again the air pressure would decrease, the evaporation process would increase and the rate of perspiration would also increase.

But transpiration is a necessary evil. It is believed that all scientists now agree on the importance of perspiration. The metabolic activity of living plant cells is largely dependent on this process. Because of transpiration there is tension in the xylem vessel. As a result of this tension, the plant consumes water and khan won by Mulram. The leaves are transported. If there is a shortage of this tension, the water supply will be reduced and the food will be ready. Tsar's metabolic activity will slow down. Perspiration causes a deficiency of diffuse pressure in the leaf mesophyll which helps in water absorption. The perspiration of the plant constantly reduces the heat absorbed by the leaf blades and keeps the temperature of the leaf cells at a tolerable level. On the other hand, while this important process benefits many types of plants, it also has some detrimental roles. For example, if the rate of loss of water in perspiration is higher than the rate of water absorption, then there will be a shortage of one mineral of water for plants. This can lead to the death of the plant. If there is a shortage of water in the soil, the end will be less but perspiration will continue as before. To prevent this, nature drops the leaves of large plants in winter. Lack of perspiration will not reduce the required diffusion pressure, resulting in less convection. In this case, it can be said that although perspiration does some harm, this process is an essential activity for plants. Scientist Curtis called perspiration 'Necessay Evil' because of the contrast of features. However, in general, it does not benefit the plant in terms of survival, so the process of perspiration has evolved despite its disadvantages.

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