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2006-12-12 04:47:39 · 7 answers · asked by ? 2 in Science & Mathematics Botany

7 answers

Transpiration is water loss through the plant to the atmosphere by evaporation. It is a mechanism that the plant uses to cool itself. The human body perspires as a means of evaporative cooling; plants transpire. In turfgrass, most occurs through the leaves, however any plant part exposed to the atmosphere can lose water through transpiration.

Two primary types of transpiration occur from the leaf blade. The first takes place from the external wax-like layer or cuticle of the leaf blade. The amount of water loss through the cuticle depends on many factors including the thickness of the cuticle. The thickness of the cuticle is primarily determined by the turfgrass species and the environmental conditions during leaf development.
Over 90% of the total transpirational water loss from the turfgrass plant takes place through stomata. Stomata are structures found within the leaf blade and are responsible for facilitating the gaseous exchange of CO2 and O2 during photosynthesis. The gas exchange function of the stomata also leads to the loss of plant water through transpiration. There are three primary environmental factors that affect the amount and rate of water loss through stomatal openings: radiation, water and temperature.

The amount of water in the turf plant at any given time is termed plant water status. The plant water status is the physiochemical condition of the water relative or plant growth or activity. During normal weather, transpiration can influence rates of different metabolic processes in the plant through the manipulation of the plant water status. Transpiration directly benefits the turfgrass plant through the evaporative cooling process. This process is imperative to the health of our cool-season turfgrass during high temperatures. However, this same process can be detrimental to the plant when the water loss through transpiration exceeds the absorption rate of water through the plant's root system. This is known as a plant water deficit. A plant water deficit will always reduce growth. When environmental and cultural conditions are prime for a water deficit to occur the result is wilting and desiccation of the turfgrass plant. These conditions have been common this July..

2006-12-12 16:22:32 · answer #1 · answered by Anonymous · 0 0

Three types of transpiration.
stomatal transpiration
cuticular transpiration
lenticular transpiration

2006-12-12 16:17:23 · answer #2 · answered by Anonymous · 1 0

Three types of transpirations are theree
1 .STomatal transpiration ,where water vapour goes through stomata
2 .CUticular transpiration where water vapour escapes through the outer cuticle
3 .Lenticular transpiration where the transpiration takes place through lenticels(these are located at the tip of leaf .They release water vapour in the form of droplets.we feel them as dew drops

2006-12-12 23:12:48 · answer #3 · answered by star_aries 2 · 1 0

Three types of transpirations are theree
STomatal transpiration ,where water vapour goes through stomata
CUticular transpiration where water vapour escapes through the outer cuticle
Lenticular transpiration where the transpiration takes place through lenticels(these are located at the tip of leaf .They release water vapour in the form of droplets.we feel them as dew drops)
Hope u got enough information

2006-12-12 05:13:33 · answer #4 · answered by red rose 5 3 · 0 0

There's only one: transpiration.

2006-12-12 04:51:18 · answer #5 · answered by Anonymous · 0 0

There are 3 types of transpiration
1. Stomatal
2. Cuticular
3. Lenticular

2006-12-15 20:43:54 · answer #6 · answered by Kanchan B 2 · 1 0

evaporation of water from foliar surface

2006-12-15 17:41:21 · answer #7 · answered by ISAEINS 3 · 0 0

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