KD, that seems to say that the entire Brassicaceae/Cruciferae family is mostly nonmycorrhizal!
That comes as a surprise!
"No arbuscules observed in 649 taxa inoculated with a VAM fungus, but 19% had hyphae and vesicles (DeMars & Boerner 1996). Some literature reports suggest VAM occurs occasionally, but most found NM roots only..."
I wonder if they've tried a wide variety of MR species on Brassicas.
And I've read that roots usually don't accept MR unless they are having trouble getting enough water and/or phosphorous. If the tests are done with well-watered, fertile soil, they would not have seen many roots with arbuscules.
But hopefully and presumably they know their own field better than I do!
PSU says:
"Crops incapable of forming mycorrhizas (canola, buckwheat, forage radish, camelina, mustards) inhibit mycorrhizal fungi."
http://extension.psu.edu/plant...
"Nearly all crop plants can form AM associations except lupins and brassicas such as canola."
http://www.soilquality.org.au/...
Learn something new every day! Thanks!
