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  • Seed germination of Dioon merolae, a cycad of Oaxaca, México, under different irrigation treatments.

    Foreign Title : Germinación de semillas de Dioon merolae, una Cícada de Oaxaca, México, Bajo diferentes tratamientos de riego.

    Author(s) : Lucas-González, J. L.Flores-Vázquez, J. C.

    Author Affiliation : Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, Asociación Civil (SERBO, A.C.), Carnino Nacional #80, San Sebastian Tutla, Oaxaca 71246, Mexico.

    Editors : Stevenson, D. W.Osborne, R.Taylor Blake, A. S.

    Book chapter; Conference paper : Proceedings of Cycad 2008. The 8th International Conference on Cycad Biology, Panama City, Panama, 13-15 January 2008 2012 pp.93-101 ref.17

    Conference Title : Proceedings of Cycad 2008. The 8th International Conference on Cycad Biology, Panama City, Panama, 13-15 January 2008.

    Abstract : MexicomexicoSubject Category: Geographic Entities
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    has an exceptional diversity of cycads within the ZamiaceaezamiaceaeSubject Category: Organism Names
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    with three genera: Zamia, Cemtozamia, and DioondioonSubject Category: Organism Names
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    . However, little is known of the ecological factors that explain their presence. Many of them grow under marginal conditions where water and soil are scarce. We studied the water requirement for germination of Dioon aff. merolae in San Jerónimo Taviche municipality pertaining to Ocotlán, Oaxaca, Mexico. We applied the same quantity of water but in five different watering schedules: (1) daily, (2) every other day, (3) every six days, (4) every nine days, and (5) every 12 days. We used 50 seedsseedsSubject Category: Anatomical and Morphological Structures
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    per treatment. After six months we calculated germination percentages and velocity with the Maguire index. The results show that, as irrigation frequency decreases, a lower percentage and speed of germination are obtained. This outcome opens new questions on the germination behavior of this Dioon species in its natural habitat.

    ISBN : 9780893275150

    Record Number : 20133109075

    Publisher : New York Botanical Garden Press

    Location of publication : Bronx

    Country of publication : USA

    Language of text : Spanish

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : DioondioonSubject Category: Organism Names
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    Descriptor(s) : irrigation systemsirrigation systemsSubject Category: Techniques, Methodologies and Equipment
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    , seed germinationseed germinationSubject Category: Natural Processes
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    , seedsseedsSubject Category: Anatomical and Morphological Structures
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    , water requirementswater requirementsSubject Category: Properties
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    Identifier(s) : Dioon merolae

    Geographical Location(s) : MexicomexicoSubject Category: Geographic Entities
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    Broader term(s) : ZamiaceaezamiaceaeSubject Category: Organism Names
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    , CycadopsidacycadopsidaSubject Category: Organism Names
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    , CycadophytacycadophytaSubject Category: Organism Names
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    , gymnospermsgymnospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , APEC countriesapec countriesSubject Category: Institutions and Organisations
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , Latin Americalatin americaSubject Category: Geographic Entities
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    , AmericaamericaSubject Category: Geographic Entities
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    , North Americanorth americaSubject Category: Geographic Entities
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    , OECD Countriesoecd countriesSubject Category: Institutions and Organisations
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    , Threshold Countriesthreshold countriesSubject Category: Miscellaneous
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