Root Air Space Measurements by a Pycnometer Method1
- 1 May 1969
- journal article
- research article
- Published by Wiley in Agronomy Journal
- Vol. 61 (3) , 474-475
- https://doi.org/10.2134/agronj1969.00021962006100030045x
Abstract
The air space fraction, or porosity, of plant roots is important to their internal aeration. Root porosity can be calculated from the following measurements: the weight of a sample of the roots in a pycnometer bottle filled with water; the weight of the root sample alone; the weight of the homogenate after ball milling the sample; and the weight of the bottle filled with water only. Results are variable and a mean of 10 samples must be obtained.Keywords
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