Wild wachsende Leguminosen und das Vorkommen der durch Rhizobium-Bakterien gebildeten Wurzelknöllchen in Wald- und Wiesenökosystemen

Summary We know very little about the symbiosis of wild grown leguminous plants and rhizobia. Our aim was to ascertain the extent and spread of this symbiosis on oecosystems significally different in growing area conditions. In all oecosystems the necessary sample area was indicated where the quantitative and qualitative plant stock was identified. From all the 3 trial areas the root nodules of at least 30 plants were examined. On the growing are of forest and meadow oecosystems compared to all the other plant species leguminous plants can be found in a proportion of 13 per cent equally with the same frequency. Root nodules were found on all leguminous plants of brown forest soil. Root nodules were not found on 15 per cent of the leguminous plants of rendzina soil and on 50 per cent of the leguminous plants of meadow oecosystem. It is probably due to the difference in water and heat-management of the soils, and these are strongly effected in the forest and meadow oecosystems.