Quote:
Originally Posted by LilRaverBoi
I'm pretty sure you're referring to ' transpiration.' Basically, water enters the roots and when the plant reaches a high enough moisture content, (probably has something to do with humidity in the air as well) the leaves lose water out of stomata in the leaves. This is usually noticed as droplets of water on the edges of leaves, especially in the evening time. Someone correct me if the details here aren't quite right....I've never taken botany, unfortunately since it wasn't offered at any of the schools I attended. Just know a bunch of plant crap from my own private research/interest in the topic. |
This is close, but not quite. Water that leaves through the stomata via transpiration is in a gas phase and simply disperses into the air. What we see happening with the bananas is called guttation, and it is excess water leaving through pores at the leaf margins called hydathodes. This happens because at night the stomata are closed and transpiration does not occur (water leaves the plant via the stomata during the day), but if there is still an excess of water at night that needs to leave the plant (because the soil is too wet), it leaves via the hydathodes as water droplets. It is not a sign of anything bad and should not be of concern. Its just one of many ways plants can deal with an environmental situation.
Quote:
Originally Posted by jmoore
Yep, what raverboi said. Dew is perfectly normal  |
Guttation is also not be confused with dew, which is atmospheric water that condenses on the leaf surface.