Question

What is Transpiration ???!​

Answer 1

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Transpiration is the the phenomenon which generally occurs in plant, In which the plant looses water in the form of water vapour through stomata.

Two main functions of transpiration ~

• It causes transpirational pull that helps in transportation of water from roots to upper portions of the plant

• It helps to release excess water

Answer 2

Answer -:

Plant absorb a large quantity of water from the soil by roots . this water reaches to different part of the plant by ascent of sap . the total quantity of water absorbed by plant is more than their requirement. only a fraction of this water from a vapour throw the aerial parts like (stem , leaves , buds , and , flower) of plant which constitute about 95% of total absorbed water . this process is called transpiration .

• Transpiration is vital process.
• This process mainly occur by stomata.
• Water evaporates in the form of vapour from aerial parts of plant.
• The loss of water per unit area is more
• It is regulated process

Types of Transpiration -:

1 Stomatal Transpiration ;

• it take place through stomata present on leaves it is also called foliar Transpiration. it constitutes about 80-95% at total Transpiration.

2 Cuticular Transpiration;

• it take place by cuticle present on the epidermis of plant it is constituted about 5-10% of total transpiration it rate is high in tropical climate and low desert climate.

3 Lenticular Transpiration

• it take place through lenticles found in Woody stem and in some fruits it constitute 0.1-1% only of total transpiration.