ISSN:
1573-5036
Keywords:
Exudation
;
Lupins
;
Lupinus albus L.
;
Micro-organisms
;
Proteoid roots
;
Rhizosphere
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary A model predicted that the concentration profile of exudate would be less steep and its concentration values higher for larger diameter roots and that rhizosphere volume/g of root would be maximised at a particular root size for a given exudation rate. Root hairs, if active in secretion, would increase the rhizosphere volume/g of root and the substrate concentrations in it. Proteoid roots would increase the concentration of diffusing substance even further, although the rhizosphere volume per g of root may decline due to overlap effects. These effects are discussed in relation to the rate and extent of reactions between exudates and the soil.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02185090
