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.