A SURVEY ON ALGAL INFESTATION IN RICE FIELDS IN PUERTO RICO

Liu Lii-Chyuan and Ramón Seda del Toro

No 261638, 19th Annual Meeting, September 11-17, 1983, Puerto Rico from Caribbean Food Crops Society

Abstract: During 1982 and 1983, more than 100 algal samples were collected from several sites of infestation. All samples were examined under the microscope with the exception of Chara species. The identification work was limited to the genera. The predominant genera identified were Hydrodictyon, Spirogyra, Rhizoclonium and Oedogonium. Other less abundant genera were Anabaena, Aphanizomenon, Bacillaria, Chara, Chlorosarcina, Cladophora, Closterium, Cosmarium, Diatoma, Eremosphaera, Fragilaria, Gyrosigma, Hormidium, Nannochloris, Navicula, Oscillatoria, Pithophora, Phacus, Protococcus, Pyrobotrys, Roya, Scenedesmus, Spirulina, Synedra, Symploca and Ulothrix. The relative abundance of these genera of algae on different rice farms in Puerto Rico is also reported.

Keywords: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Pages: 7
Date: 1983-09-11
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Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs83:261638

DOI: 10.22004/ag.econ.261638

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