Dry weight

Dry weight [ Botany - Biology ]	Dictionary of botanic terminology - index of names
Similar term: Dried material.

The weight of any plant (or other organism) part after all its water content has been removed by drying.

The dry weight is an estimate of a body or of a body samples weight when all water has been removed, means the weight of the sample, excluding the weight of the water in the sample.
The dry weight is determined by means of drying processes which would remove water.

Measuring plants dry weight: Since plants have a high composition of water and the level of water in a plant will depend on the amount of water in it's environment (which is very difficult to control), You can only capture this data by means of a drying processes which would remove water:

Remove the plants from the soil and wash off any loose soil.
Blot the plants removing any free surface moisture.
Dry the plants in an oven set to low heat (100 degrees) overnight.
Let the plants cool in a dry environment (a Ziploc bag will keep moisture out) - in a humid environment the plant tissue will take up water. Once the plants have cooled weigh them on a scale.

Air-dry weight: The weight of a substance (usually a plant part) after it has been allowed to dry to equilibrium with the atmosphere.

Compare with: Wet weigt

(Soil) Dry weight [ Agronomy ]

The mass of a soil sample or of an object when dried.

A Special Thanks to all Those Who help us to make this web site
with their photo, time, comments.

The photos in this site are subject to copyright. Images may not be copied, downloaded, or used in any way without the expressed, written permission of CACTUS ART nursery and the original photographer.