Need Help about transpiration

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Vanny90
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Need Help about transpiration

Post by Vanny90 » Wed Dec 13, 2006 5:34 am

Will a daisy plant transpire more in a humid environment or in a dry environment? Why?

Thank you!

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mith
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Post by mith » Wed Dec 13, 2006 5:44 am

What's the purpose of transpiration?
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr

Vanny90
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Post by Vanny90 » Wed Dec 13, 2006 6:04 am

mith wrote:What's the purpose of transpiration?


evaporates water and cools the leaf?

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sachin
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Post by sachin » Wed Dec 13, 2006 4:21 pm

transpiration is differant than perspiration.

Our body transpire too.
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destiny
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Post by destiny » Thu Dec 14, 2006 10:53 am

Transpiration: The loss of water vapour from the aerial parts of the plant, especially through the stomata of the leaves.

From this definition, I guess the daisy plant will transpire more in a dry environment. The reason maybe due to the fact that the environment is dry, thus causing the plant's roots to take in more water for usage and this water passes from the roots to the leaves etc. and finally out into the atmosphere via the stomata.

Hope my answer is correct.
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sachin
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Post by sachin » Thu Dec 14, 2006 3:51 pm

destiny wrote:Transpiration: The loss of water vapour from the aerial parts of the plant, especially through the stomata of the leaves.

From this definition, I guess the daisy plant will transpire more in a dry environment. The reason maybe due to the fact that the environment is dry, thus causing the plant's roots to take in more water for usage and this water passes from the roots to the leaves etc. and finally out into the atmosphere via the stomata.

Hope my answer is correct.


Partly correct; In dry environment plants tend to sieze thier activity for some time so that less heat is produce and stomata are closed to save water loss by transpiration.And waits for favorable condition to come in normal activity rate.
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MrMistery
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Post by MrMistery » Thu Dec 14, 2006 4:42 pm

it really depends on the plant. some plants, like CAM plants, can withstand high heat and keep their stomata closed in a hot, dry environement. other plants can't stand the heat and open their stomata in order to cool off, but doing so they only lose the little water they have.

if we are discussing a dry but cool environment, then no doubt the plant will secrete abscisic acid and close it's stomata.

Botany is logical, but very complex..
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sachin
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Post by sachin » Fri Dec 15, 2006 2:34 pm

MrMistery wrote:Botany is logical, but very complex..


Ya, So I prefered Zoology....... :lol:
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MrMistery
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Post by MrMistery » Fri Dec 15, 2006 6:24 pm

Well, zoology is even more complex if you ask me..
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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sachin
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Post by sachin » Sat Dec 16, 2006 5:11 am

MrMistery wrote:Well, zoology is even more complex if you ask me..


But I can experience it in my self......... 8)
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Bitter Truth!
Who says reason for world war III will be Petrol?
Reason lies in two words "Me and Mine".

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