naa a22 4500 51073751X CHVBK 20180411083016.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11284-013-1036-y doi (NATIONALLICENCE)springer-10.1007/s11284-013-1036-y Light and soil moisture effects on biomass and its allocation in Osmorhiza depauperata Philippi (Apiaceae) [Elektronische Daten] [Luciano Selzer, María Lencinas, Guillermo Martínez-Pastur, Carlos Busso] Changes in forest openings affect light quality and quantity, and the magnitude of rainfall that reaches the soil surface. Osmorhiza depauperata, a geophyte, acclimates to changes imposed because of forest openings. We studied which changes in biomass allocation allow acclimation of O. depauperata to the various environments that this species inhabits, and where it develops better. Three light intensities (I4=4%, I26=26%, I64=64% of ambient sunlight) and two moisture levels (M40=40-60%, M80=80-100% field capacity) were evaluated on O. depauperata under greenhouse conditions. Plant biomasses per pot were 0.81, 0.56 and 0.48g at I26, I4 and I64 light intensities, respectively, after one growing season. The biomass allocation to aboveground tissues and leaf area decreased as light intensity increased. Soil moisture modified only belowground biomass and weight of fine roots. The interaction between soil moisture content and light intensity was consistent. This was because of a significant reduction in total plant biomass under high both soil moisture content and high light intensity. Osmorhiza depauperata growth was favored most at medium light intensities. Changes in biomass allocation among various organs allow this species to inhabit forest habitats with different light intensities. The Ecological Society of Japan, 2013 Light intensity nationallicence Soil moisture nationallicence Biomass nationallicence Leaf area nationallicence Biomass allocation nationallicence Osmorhiza depauperata nationallicence Selzer Luciano Centro Austral de Investigaciones Científicas (CONICET), Houssay 200, 9410, Ushuaia, Tierra del Fuego, Argentina aut Lencinas María Centro Austral de Investigaciones Científicas (CONICET), Houssay 200, 9410, Ushuaia, Tierra del Fuego, Argentina aut Martínez-Pastur Guillermo Centro Austral de Investigaciones Científicas (CONICET), Houssay 200, 9410, Ushuaia, Tierra del Fuego, Argentina aut Busso Carlos Departamento de Agronomía and CERZOS (CONICET), Universidad Nacional del Sur, San Andrés 800, 8000, Bahia Blanca, Argentina aut Ecological Research Springer Japan 28/3(2013-05-01), 469-480 0912-3814 28:3<469 2013 28 11284 https://doi.org/10.1007/s11284-013-1036-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11284-013-1036-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Selzer Luciano Centro Austral de Investigaciones Científicas (CONICET), Houssay 200, 9410, Ushuaia, Tierra del Fuego, Argentina aut NATIONALLICENCE 700 1- Lencinas María Centro Austral de Investigaciones Científicas (CONICET), Houssay 200, 9410, Ushuaia, Tierra del Fuego, Argentina aut NATIONALLICENCE 700 1- Martínez-Pastur Guillermo Centro Austral de Investigaciones Científicas (CONICET), Houssay 200, 9410, Ushuaia, Tierra del Fuego, Argentina aut NATIONALLICENCE 700 1- Busso Carlos Departamento de Agronomía and CERZOS (CONICET), Universidad Nacional del Sur, San Andrés 800, 8000, Bahia Blanca, Argentina aut NATIONALLICENCE 773 0- Ecological Research Springer Japan 28/3(2013-05-01), 469-480 0912-3814 28:3<469 2013 28 11284 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer