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transpiration experiment

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transpiration experiment

Postby jwalin » Sat Jan 16, 2010 6:54 am

i was doing a very very simple experiment regarding transpiration

i took a capillary tube and attached to a rubber tubing and then to a small piece of glass tube and then to another rubber tube and then to the plant shoot.
then i noted down the hieght to which a air bubble rouse in different condition.
under normal conditions i got 5 cm / min and under fan at speed 3 (i need to count the rpm yet) 9 cm / min. that's all alright but under sun (varying sunlight and temperature (by 5 degrees)) i got 2 cm in 5 min
something had gone wrong.
i don't know what. the temperature difference should have made a difference.
it isn't what you do that matters but it is how you do it
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Postby jwalin » Sat Jan 16, 2010 6:57 am

the plant had stayed detached for 2 hours by then. but that doesn't make a difference. if i am right
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Postby jwalin » Sat Jan 16, 2010 6:58 am

a few other thingss had also taken place. the rubber tubings had grown looser. i think that was the reason but there was no leakage or anything nor did the water flow out when the shoot was removed.
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Postby JackBean » Sun Jan 17, 2010 10:10 am

could you sketch your experiment? I don't get it much...
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby jwalin » Mon Jan 18, 2010 9:37 am

yeah i could
i can draw on paint or word
but how do i put it up here??
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Postby JackBean » Mon Jan 18, 2010 10:23 am

Do it in Paint, save as jpg or png, upload somewhere and post here by [img]
http://www.biolib.cz/en/main/

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Postby MichaelXY » Thu Jan 21, 2010 10:24 am

What kind of plant, was it a CAM plant?
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Postby jwalin » Thu Jan 21, 2010 11:42 am

no clue.
i will asks someone.

ummmm
no idea
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Postby MichaelXY » Thu Jan 21, 2010 12:17 pm

I only asked because CAM plants transpire less in sunlight. :)
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Postby jwalin » Thu Jan 21, 2010 1:01 pm

are they dicot and do they have white flowers?
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Postby jwalin » Thu Jan 21, 2010 1:03 pm

and how do they transpire less in the sun?
do they close theirstoma and also reduce the photosynthsis :?:
and why so? are they dessert plants or something?
i am all questions you know

pretty interesting :)
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Postby JackBean » Thu Jan 21, 2010 2:25 pm

http://en.wikipedia.org/wiki/Crassulace ... metabolism
these are the sukulents

what plant did you use?
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