Results 211 to 220 of about 23,118 (251)

Biomass allocation in hermaphrodite flowers

Canadian Journal of Botany, 1982
Patterns of dry matter distribution to male and female organs and to ancillary floral organs were examined in five angiosperm species with hermaphrodite flowers (Lilium superbum, Hibiscus trionum, Podophyllum peltatum, Trillium grandiflorum, and Erythronium albidum).
Jon Lovett Doust, Paul B. Cavers
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Root biomass allocation in the world's upland forests

Oecologia, 1997
Because the world's forests play a major role in regulating nutrient and carbon cycles, there is much interest in estimating their biomass. Estimates of aboveground biomass based on well-established methods are relatively abundant; estimates of root biomass based on standard methods are much less common.
Michael A, Cairns, Sandra, Brown, Eileen H, Helmer, Greg A, Baumgardner   +3 more
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Variation and Plasticity of Biomass Allocation in Daphnia

Functional Ecology, 1994
1. For organisms with indeterminate growth a trade-off between growth and reproduction is expected. The detection of this trade-off depends not only on the covariance between these two traits, but also on the variation of their sum, the total production (TP = growth + reproduction).
L. Y. Yampolsky, D. Ebert
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Patterns of fucoid reproductive biomass allocation

British Phycological Journal, 1992
The reproductive biomass allocation patterns (i.e. total reproductive effort) for eight perennial Northwest Atlantic fucoid algae (Ascophyllum nodosum, A. nodosum ecad scorpioides, Fucus distichus ssp. anceps, F. d. distichus, F. d. edentatus, F. d. evanescens, F. spiralis and F.
Mathieson, Arthur C., Guo, Zhangyang
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Reproductive biomass allocation in three Sargassum species

Oecologia, 1985
Allocation of biomass to sexual reproductive (receptacle) tissue and vegetative (holdfast) tissue differed absolutely and relatively in three Sargassum species that form the bulk of the intertidal algal canopy in the northern Gulf of California. Sargassum herporhizum devoted a greater proportion of its thallus mass into its rhizoidal holdfast than did ...
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Allelochemic control of biomass allocation in interacting shrub species

Journal of Chemical Ecology, 1993
Aqueous leachates derived from canopy phyllodes of invasiveAcacia cyclops affected growth of a range of shrub species independently of nutrient input effects. All plants showed a sublethal phytotoxic response. Root mass was generally less adversely affected than shoot mass and, while decreasing significantly in response to the 10% concentration, showed
M C, Rutherford, L W, Powrie
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Biomass and nutrient allocation in a neotropical dioecious palm

Oecologia, 1984
The sexes of Chamaedorea ernesti-augusti are largely undifferentiated in the distribution of biomass, nitrogen, phosphorus, potassium, and total non-structural carbohydrates, among leaves and stems. Males bear more inflorescences that are cheaper except in nitrogen, but most females bear greater annual energetic and nutritional burdens due to seed ...
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BIOMASS ALLOCATION IN AN AGROPYRON SMITHII‐GLOMUS SYMBIOSIS

American Journal of Botany, 1987
The type of response the steppe grass Agropyron smithii Rydb. exhibits to mycorrhizal fungi is dependent upon where along the resource gradient the experiment is conducted. At the lower end of a soil‐phosphorus (P) gradient (2 μg P g ‐1 soil ...
R. Michael Miller, Amiel G. Jarstfer, Jan K. Pillai   +2 more
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Climate‐driven changes in biomass allocation in pines

Global Change Biology, 2000
SummaryFuture increases in air temperature resulting from human activities may increase the water vapour pressure deficit (VPD) of the atmosphere. Understanding the responses of trees to spatial variation in VPD can strengthen our ability to predict how trees will respond to temporal changes in this important variable. Using published values, we tested
Evan H. Delucia, Hafiz Maherali, Eileen V. Carey   +2 more
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On the Comparative Allocations of Biomass, Energy, and Nutrients in Plants

Ecology, 1982
The objective of this study was to test the assumption that biomass allocation, energy allocation, and nutrient element allocation are equivalent for studies involving ecological—strategy analysis in plants. The results for the semelparous Verbascum thapsus and five iteroparous Solidago species show that the mineral elements examined are allocated ...
Warren G. Abrahamson, Hal Caswell
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