U
Ulf Granhall
Researcher at Swedish University of Agricultural Sciences
Publications - 20
Citations - 1114
Ulf Granhall is an academic researcher from Swedish University of Agricultural Sciences. The author has contributed to research in topics: Rhizobacteria & Coffea arabica. The author has an hindex of 16, co-authored 20 publications receiving 1019 citations. Previous affiliations of Ulf Granhall include Saint Louis University.
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Cytokinin production by Paenibacillus polymyxa
TL;DR: Iso-pentenyladenine (iP) was identified in the two defined media used for the cultivation of P. polymyxa, and small amounts of iP appeared in all three media, and iPR had disappeared from the yeast-containing medium, which indicates that the bacterium can metabolize cytokinins.
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Distribution of arbuscular mycorrhizal fungi spores in soils of smallholder agroforestry and monocultural coffee systems in southwestern Ethiopia
TL;DR: Agroforestry practices including the use of leguminous shade trees effectively maintained AMF numbers in soils even at depth compared with unshaded coffee plants (monocultures).
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Phosphate-solubilising rhizobacteria associated with Coffea arabica L. in natural coffee forests of southwestern Ethiopia
TL;DR: Screening of Coffea arabica-associated rhizobacteria that possess direct plant growth-promoting traits for extending the use of indigenous microbes as microbial biofertilisers should be considered.
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Isolation and Characterization of Dinitrogen-Fixing Bacteria from the Rhizosphere of Temperate Cereals and Forage Grasses
Torbjörn Lindberg,Ulf Granhall +1 more
TL;DR: By imposing a stronger selection pressure, pure isolates with nitrogenase activity from field-grown wheat were obtained, and species of Azotobacter or Azospirillum could not be isolated from the rhizosphere of any of the cereals and forage grasses studied.
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Composition of coffee shade tree species and density of indigenous arbuscular mycorrhizal fungi (AMF) spores in Bonga natural coffee forest, southwestern Ethiopia
TL;DR: Bonga natural coffee forest seems to be an ideal focal forest for in situ coffee genetic resources conservation and promotion of organic coffee production and species richness among dominant coffee shade tree species along with a fair distribution of relevant numbers and types of AMF to stimulate coffee growth.