transpiration experiment

[jwalin]

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.

[jwalin]

the plant had stayed detached for 2 hours by then. but that doesn't make a difference. if i am right

[jwalin]

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.

[JackBean]

could you sketch your experiment? I don't get it much...

[jwalin]

yeah i could
i can draw on paint or word
but how do i put it up here??

[JackBean]

Do it in Paint, save as jpg or png, upload somewhere and post here by [img]

[MichaelXY]

What kind of plant, was it a CAM plant?

[jwalin]

no clue.
i will asks someone.

ummmm
no idea

[MichaelXY]

I only asked because CAM plants transpire less in sunlight.

[jwalin]

are they dicot and do they have white flowers?

[jwalin]

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

[JackBean]

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

what plant did you use?