In what different ways are leaves designed to get rid of excess water?
How do leaves get rid of excess water?
The situation is not that leaves get rid of EXCESS water, but rather leaves pass water in the process of motabalism. Leaves are little factories. They receive raw goods with one purpose that is to produce sugar that the plant needs to sustain life and reproduce. One of the raw materials is water.
In the process of producing sugar for export out of the leaf/factory, the leaf must also meet the minimum production quota of sugar to operate. If it doesn't meet the minimum threshold to stay alive -- it shuts down. And if it can't produce enough to just stay alive, of course it dies.
Water is part of the sugar making process and water is also a coolant. Leaves get hot in a day's work. One method used to keep cool is to vent, pass, exhale water in the form of water vapor. One of the functions of the stomata (small openings in leaf surfaces) is to pass water vapor along with oxygen and carbon dioxide. So leaves breath with out muscels to drive the breathing process.
Leaves do exude water and I am not sure that this water is excess or not. The process is known as leaf margin gutation (LMG) and not to be confused with dew. LMG occures most often in the earily morning hours, which are the day's most cool tempretures just before sun-up. At the time, leaf internal water pressure is such that leaf margin cells exude fluid water. This water collects on the margin as dropletts not heavy enough to dislodge and fall. As morning progresses with sunlight becoming stronger, photothensis starting up, air tempreture increassing, ambient humidity beginning to decrease; some of that LMG fluid drops to the ground, some evaporates, and some goes back into the leaf from whence it came.
You might see LMG in some house plants like Pothos; a little drop of water at the very tip of a leaf(s) in the morning. You wonder, how did that get there?
I've seen spectacular sight inside three acre greenhouses of tomato production. Walking into the greenhouse with the sun's earily morning rays just breaking and washing three acres of shoulder high plants. The entire scene is like looking at millions of diamonds sparkling along the margins of thousands of leaves. Awsome!
Small enough to cut carrots and cucumbers into fun shapes, this set of 6 vegetable cutters adds color and interest to any meal. Kids will show a lot more enthusiasm for veggies when they're presented in such appealing shapes...
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Tea Sub - Submarine Tea InfuserThis Tea Sub Infuser makes the ideal gift for anyone who loves using loose tea! In a town, where I was born, there lived a man who sailed the tea, and he told me of his life, in a cup of Darjeeling...
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Heritage
List Price: $18.98
Sale Price: $10.22
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2011 release celebrating the musical culture of Ireland. The program features 12 new recordings including 'An Irish Blessing', 'A Place In The Choir' and 'Whiskey In The Jar'. Over the past three years, Celtic Thunder has been one of the most successful PBS music programs...
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No Description AvailableNo Track Information AvailableMedia Type: CDArtist: BLACK SABBATHTitle: MASTER OF REALITYStreet Release Date: 07/07/1987
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It always comes up when people are comparing their most traumatic movie experiences: "the death of Bambi's mother," a recollection that can bring a shudder to even the most jaded filmgoer. That primal separation (which is no less stunning for happening off-screen) is the centerpiece of Bambi, Walt Disney's 1942 animated classic, but it is by no means the only bold stroke in the film...
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Roses, Leaves and More is an in depth tutorial on the five fundamental principles of successful canemaking. You will learn the importance of value contrast, hue selection, clay preparation and cane construction...
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The straightforward sophistication of Etched Glass. Artscape's Etched Glass window film self adheres to any smooth glass surface. Etched Glass is available in 36 In. x 72 In. panels which can be trimmed, or combined to fit any sized window...
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"ARTSCAPE" ETCHED LEAF WINDOW FILM 24" X 36" Translucent film for windows, showers and glass Allows light to enter yet provides privacy Great to block unwanted views or in places where blinds/curtains remain closed regularly Self-adhering (static) - no adhesives Easily trimmed to fit and matches patterns like wallpaper Easily removed without leaving any residue
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US $109.99
