N₂-fixing root nodules in Ulmaceae: Parasponia or (and) Trema spp.?

Autor: Akkermans, A. D. L., Abdulkadir, S., Trinick, M. J.
Zdroj: Plant and Soil, 1978 Jun 01. 49(3), 711-715.
Databáze: JSTOR Journals