Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile

ABSTRACT Eulychnia acida Phil. is an arborescent cactus species endemic to Chile, and widespread in the Coquimbo Region, Chile. Wild populations are found on north facing slopes and vary morphologically in fruit shape and color. We conducted a study on reproductive phenology at three locations in th...

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Autor principal:	Salvatierra,Angélica
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2020
Materias:	Cactus copao flowering flowering synchrony reproductive stages rumpa
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000200253
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spelling	oai:scielo:S0718-583920200002002532020-11-30Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, ChileSalvatierra,Angélica Cactus copao flowering flowering synchrony reproductive stages rumpa ABSTRACT Eulychnia acida Phil. is an arborescent cactus species endemic to Chile, and widespread in the Coquimbo Region, Chile. Wild populations are found on north facing slopes and vary morphologically in fruit shape and color. We conducted a study on reproductive phenology at three locations in the region: Quebrada Honda in the coastal area, Gualliguaica in the Elqui Valley, and La Coipa in the Limarí Valley. A total of 120 stems from 30 selected plants of wild populations were monitored weekly and the phenological stages were evaluated over a season. Through multivariate analysis was determined if climatic factors affected the number of individual and/or reproductive organs observed. The presence of reproductive phenophases is asynchronous, beginning in late autumn with the appearance of flower buds, which bloom mainly in spring and set at the end of the season. Flowering has a unimodal pattern. The variable fruits by stems is strongly correlated (p < 0.05) with the relative humidity (negative) and the degree days (positive). Locations show differences in the duration of the phenological events, which appear to be related to plant size and abundance of reproductive structures. Flowering synchrony among individuals is low when compared with other cacti; this means less overlap of the flowering periods among individuals, which could be a strategy to ensure insect visitation and pollination. Longer term studies are necessary to establish how weather conditions, rainfall and temperature influence the generation of flower buds, since production is affected in periods of drought.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.80 n.2 20202020-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000200253en10.4067/S0718-58392020000200253
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cactus copao flowering flowering synchrony reproductive stages rumpa
spellingShingle	Cactus copao flowering flowering synchrony reproductive stages rumpa Salvatierra,Angélica Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile
description	ABSTRACT Eulychnia acida Phil. is an arborescent cactus species endemic to Chile, and widespread in the Coquimbo Region, Chile. Wild populations are found on north facing slopes and vary morphologically in fruit shape and color. We conducted a study on reproductive phenology at three locations in the region: Quebrada Honda in the coastal area, Gualliguaica in the Elqui Valley, and La Coipa in the Limarí Valley. A total of 120 stems from 30 selected plants of wild populations were monitored weekly and the phenological stages were evaluated over a season. Through multivariate analysis was determined if climatic factors affected the number of individual and/or reproductive organs observed. The presence of reproductive phenophases is asynchronous, beginning in late autumn with the appearance of flower buds, which bloom mainly in spring and set at the end of the season. Flowering has a unimodal pattern. The variable fruits by stems is strongly correlated (p < 0.05) with the relative humidity (negative) and the degree days (positive). Locations show differences in the duration of the phenological events, which appear to be related to plant size and abundance of reproductive structures. Flowering synchrony among individuals is low when compared with other cacti; this means less overlap of the flowering periods among individuals, which could be a strategy to ensure insect visitation and pollination. Longer term studies are necessary to establish how weather conditions, rainfall and temperature influence the generation of flower buds, since production is affected in periods of drought.
author	Salvatierra,Angélica
author_facet	Salvatierra,Angélica
author_sort	Salvatierra,Angélica
title	Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile
title_short	Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile
title_full	Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile
title_fullStr	Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile
title_full_unstemmed	Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile
title_sort	reproductive phenology of the arborescent cactus eulychnia acida phil. under three agroecological conditions in the coquimbo region, chile
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000200253
work_keys_str_mv	AT salvatierraangelica reproductivephenologyofthearborescentcactuseulychniaacidaphilunderthreeagroecologicalconditionsinthecoquimboregionchile
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Reproductive phenology of the arborescent cactus Eulychnia acida Phil. under three agroecological conditions in the Coquimbo Region, Chile

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