Transpiration :-)

1. If a plant is close to wilting is it correct to assume it cannot open its stomata in response to high humidity?

2. How can low humidity cause stomata to close when the plants highly hydrated state causes strong enough osmotic pressure on the guard cells to keep them open?

3. Does overfertilization cause stomata to open or close?

4. With a high airflow rate and very high humidity at the same time do the stomata open or close?

Thankyou

1...its possible as guard cells can inhibit the intake of co2 and the release of h20 2 the low humidity should aid in the opening of the stomata ...got me but over fert in any capacity will draw h20 out of the plants...hence burning them. 4..im going w open..but not as well as they would without the humidity. hope any of that helps..i need to read up a bit more..gettn old lol

Probably cause purple stems

SnaFuu said:

Probably cause purple stems

Click to expand...

The four questions are neither aimed at purple stem exspression or plant health in general. I like my stems green others purple, in mother nature chlorophyl is the most efficient cell at harnessing photon energy from light, im not looking for any less than 100%

Id like to think the questions present a confliction, take question 1 for example


1. If a plant is close to wilting is it correct to assume it cannot open its stomata in response to high humidity?

If a plant is wilting it shouldnt have the osmotoic pressure to hydrate its guard cells but high humidity would activate guard cells.

Which one wins out for each situation?