Record ID No. |
3166 |
Author(s) |
Saia S., Ruisi P., Amato G., Giambalvo D. , 2010. |
Title |
Effects of arbuscular mycorrhizal symbiosis on growth and N2 fixation of Trifolium alexandrinum under late drought stress conditions. (Grassland Science in Europe, Volume 15) |
Source. Vol.(no):Page |
Grassland in a changing world. Proceedings of the 23rd General Meeting of the European Grassland Federation, Kiel, Germany, 29th August - 2nd September 2010. 842-844p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Soil Moisture |
Host |
Trifolium alexandrinum, Lolium multiflorum |
Organism |
AMF |
Country |
Germany, Europe. |
Abstracts |
Several experiments, mostly carried out under controlled conditions, have shown that arbuscular mycorrhizal (AM) symbiosis enhances nutrient uptake and improves drought tolerance of host plants. The present research, carried out in a typical Mediterranean environment, evaluated the effect of AM symbiosis on berseem clover (Trifolium alexandrinum L.) grown in the field under both late drought stress and well-watered conditions. The crop was subjected to repeated defoliation. N2 fixation was estimated using the N dilution method and using ryegrass (Lolium multiflorum var. Westervoldicum) as the reference crop. In late drought conditions, AM symbiosis resulted in a significant increase in biomass yield, total N uptake, total amount of N fixed, and proportion of N derived from the atmosphere. The results suggest that AM symbiosis could play a key role in alleviating the stress effects of late drought on berseem forage production in the field. |