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Water potential

Definition

noun

The measure of the relative tendency of water to move from one area to another, and is commonly represented by the Greek letter Ψ (Psi).


Supplement

Water potential is caused by osmosis, gravity, mechanical pressure, or matrix effects including surface tension. It is useful in understanding water movements within plants, animals, and soil.


Word origin: potential » Late Latin potentiālis, powerful, from Latin potentia, power.

Compare: Osmotic Potential.
See also: osmosis.


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Re: A Potential Plan To Save Endangered Species

... ; will they effect the surrounding area with this "NEW" species ! Let's say it like "U" have a ship "It takes on OCEAN WATER from the "YELLOW SEA" that ship travels too MIAMI where it unloads it cargo & gets rid of the water it brought on board in the "YELLOW ...

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by EtriganNE
Mon Nov 18, 2013 3:02 pm
 
Forum: General Discussion
Topic: A Potential Plan To Save Endangered Species
Replies: 4
Views: 2546

Solving World Hunger with Aphid Farms

... source of protein, carbs and amino acids, aphids, or plant lice, are a potentially unparalleled food source. It was once said that if the offspring ... ecosystem, growing our quadrillion aphids, requiring only sunlight water, and backup plants. Simply knock off some aphids when your rice needs ...

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by erialsneider
Sun Nov 03, 2013 12:13 pm
 
Forum: General Discussion
Topic: Solving World Hunger with Aphid Farms
Replies: 2
Views: 1131

Re: In the chardakovs experiment...

The Chardokov system gives a brisk intends to confirm plant tissue water probabilities. This system relies on upon the change in thickness in ... in it. The result increases or looses water hinging upon the water potential of the tissue.

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by sullivan
Thu Jul 18, 2013 12:20 pm
 
Forum: General Discussion
Topic: In the chardakovs experiment...
Replies: 3
Views: 3833

solutions containing different concentrations of oxaloacetat

... examine metabolic reactions lap, we measured the absorbance spectra of potential substrates and products as the following: OAA stock is 8 mM Malate stock is 8 mM NADH stock is 1 mM we made dilutions of these with water as shown below: Dilution of 1:2 OAA: 500 μL water + 500 μL OAA malate: ...

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by ladwer
Sun Oct 07, 2012 2:38 am
 
Forum: General Discussion
Topic: solutions containing different concentrations of oxaloacetat
Replies: 1
Views: 1336

Re: My Microscopes Potential in viewing life

Are you mounting the soil samples under a cover slip with a drop of water? That can help, as living protozoa can swim a bit away from soil particles, making them easier to see. Also, some of these critters move fast, so using a solution of methylcellulose ...

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by jonmoulton
Thu Sep 27, 2012 4:23 pm
 
Forum: General Discussion
Topic: My Microscopes Potential in viewing life
Replies: 2
Views: 1823
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