Skip to Main Content
Differences in arbuscular mycorrhizal fungi among three coffee cultivars in Puerto RicoAuthor(s): Ligia Lebrón; Jean D. Lodge; Paul Bayman
Source: ISRN Agronomy 2012: 1-7. doi:10.5402/2012/148042
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
View PDF (540.61 KB)
DescriptionMycorrhizal symbiosis is important for growth of coffee (Coffea arabica), but differences among coffee cultivars in response to mycorrhizal interactions have not been studied. We compared arbuscular mycorrhizal (AM) extraradical hyphae in the soil and diversity of AM fungi among three coffee cultivars, Caturra, Pacas, and Borbon, at three farms in Puerto Rico. Caturra had significantly lower total extraradical AM hyphal length than Pacas and Borbon at all locations. P content did not differ among cultivars. Extraradical hyphal lengths differed significantly among locations. Although the same morphotypes of mycorrhizal fungal spores were present in the rhizosphere of the three cultivars and total spore density did not differ significantly, frequencies of spore morphotypes differed significantly among cultivars. Spore morphotypes were typical of Glomus and Sclerocystis. Levels of soil nutrients did not explain differences in AM colonzation among cultivars. The cultivar Caturra is a mutant of Borbon and has apparently lost Borbon's capacity to support and benefit from an extensive network of AM hyphae in the soil.Widespread planting of Caturra, which matures earlier and has higher yield if fertilized, may increase dependence on fertilizers.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLebrón, Ligia; Lodge, D. Jean; Bayman, Paul. 2012. Differences in arbuscular mycorrhizal fungi among three coffee cultivars in Puerto Rico. ISRN Agronomy 2012: 1-7. doi:10.5402/2012/148042
- Biodiversity of mycorrhizas on Garry oak (Quercus garryana) in a southern Oregon savanna
- Soil microbial community resilience with tree thinning in a 40-year-old experimental ponderosa pine forest
- Mycorrhizal associations of trees have different indirect effects on organic matter decomposition
XML: View XML