ISSN:
1573-5036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Few rushes and sedges were infected by endomycorrhizal fungi in the field, and many of the infections which were formed were mainly of mycelium in the rhizosphere with only occasional lodgements in epidermal cells. In a pot experiment using a soil of very low P availability, rushes and sedges remained non-mycorrhizal and yet produced more shoot dry matter than mycorrhizal Poa colensoi (Graminae). Rushes and sedges had much longer root systems than non-mycorrhizal Poa colensoi, but comparable shoot P concentrations. I suggest that they have evolved extensive and finely branched root systems rather than the mycorrhizal habit for extracting P from infertile soils. In pot experiments, they differ from mycotrophic angiosperms in rejecting mycorrhizal infection, even if suffering P deficiency. re]19740401
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00010023
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