Ecophysiological studies of four amazonian weedy species: implications for their invasive potential.

DIAS FILHO, M. B.

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	DIAS FILHO, M. B.	pt_BR
dc.date.accessioned	2011-04-10T11:11:11Z	pt_BR
dc.date.accessioned	2011-04-10T11:11:11Z	pt_BR
dc.date.available	2011-04-10T11:11:11Z	pt_BR
dc.date.available	2011-04-10T11:11:11Z	pt_BR
dc.date.created	1995-06-20	pt_BR
dc.date.issued	1994	pt_BR
dc.identifier.citation	1994.	pt_BR
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/402604	pt_BR
dc.description	This research focused on a comparative study of four important perenial weedy species from pastures and crop areas in eastern Brazilian Amazonia: Ipomoea asarifolia (Desr.) Roem. & Schultz (Convolvulaceae), Stachytarpheta cayennensis (Rich) Vahl. (Verbenaceae), Solanum crinitum Lam. (Solanaceae) and Vismia guianensis (Aubl.) Choisy (Guttiferae). Two major lines of experiments were conducted. The firts investigated some aspects of the seed ecology of the species: longevity in the soil, germination responses to light, nitrate and osmotic stress and the effect of planting depth on seedling emergence. The second line of experiments evaluated the effect of limited soil moisture or of contrasting light environments on physiological and morphological responses of thespecies. In addition, the effect of a simulated mowing regime on the fecundity of S. cayennensis was evaluated. The results from this research have identified ecophysiological characteristics which indicate that all four species studied are equiped with traits that can render them noxious weedy species in tropical regions. However, based on the environmental and management conditions known to exist in cultivated pastures and certain crop areas in eastern Brazilian Amazonia, the potential of these species to become persistent weeds and extend their ranges could be tentatively classified in the following sequence: Stachytapheta > Vismia > Solanum > Ipomoea.	pt_BR
dc.format	il.	pt_BR
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Ecofisiologia	pt_BR
dc.subject	Brasil	pt_BR
dc.subject	Ipanema asarifolia	pt_BR
dc.subject	Stachytarpheta coyenannensis	pt_BR
dc.subject	Weed	pt_BR
dc.title	Ecophysiological studies of four amazonian weedy species: implications for their invasive potential.	pt_BR
dc.type	Teses	pt_BR
dc.date.updated	2017-06-23T11:11:11Z	pt_BR
dc.subject.thesagro	Erva Daninha	pt_BR
dc.subject.thesagro	Vismia Guianensis	pt_BR
dc.subject.nalthesaurus	Amazonia	pt_BR
dc.subject.nalthesaurus	Solanum crinitum	pt_BR
dc.subject.nalthesaurus	ecophysiology	pt_BR
dc.description.notes	Dissertation (Doctor of Philosophy) - Cornell University, Cornell.	pt_BR
dc.format.extent2	220 f.	pt_BR
riaa.ainfo.id	402604	pt_BR
riaa.ainfo.lastupdate	2017-06-23	pt_BR
dc.contributor.institution	MOACYR BERNARDINO DIAS FILHO, CPATU.	pt_BR
Aparece en las colecciones:	Tese/dissertação (CPATU)

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