NDLI: Light and soil moisture effects on biomass and its allocation in Osmorhiza depauperata Philippi (Apiaceae)

Content Provider	Springer Nature Link
Author	Selzer, Lucia Javier Lencinas, María Vanessa Martínez Pastur, Guillermo José Busso, Carlos Alberto
Copyright Year	2013
Abstract	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 0.48 g 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.
Starting Page	469
Ending Page	480
Page Count	12
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	28
Issue Number	3
e-ISSN	14401703
Language	English
Publisher	Springer Japan
Publisher Date	2013-03-15
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Light intensity Soil moisture Biomass Leaf area Biomass allocation Osmorhiza depauperata Ecology Plant Sciences Zoology Evolutionary Biology Behavioural Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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