Results 181 to 190 of about 142,660 (208)
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Plant Biology, 2016
Abstract This study tested the hypothesis that self‐compatibility would be associated with floral traits that facilitate autonomous self‐pollination to ensure reproduction under low pollinator visitation. In a comparison of two pairs of Ipomoea species with contrasting breeding systems, we predicted that self‐compatible (SC) species would have ...
R, Delgado-Dávila +2 more
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Abstract This study tested the hypothesis that self‐compatibility would be associated with floral traits that facilitate autonomous self‐pollination to ensure reproduction under low pollinator visitation. In a comparison of two pairs of Ipomoea species with contrasting breeding systems, we predicted that self‐compatible (SC) species would have ...
R, Delgado-Dávila +2 more
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The Journal of Ecology, 1994
1 This study explored the effects of plant size, position of fruits within inflorescences, and position of seeds within fruits on the regulation of fecundity in the two outcrossing perennial herbs Epilobium dodonaei and E. fleischeri which replace each other along an altitudinal gradient. 2 Almost all reproductive components were affected by size.
Stöcklin, Jürg, Favre, P.
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1 This study explored the effects of plant size, position of fruits within inflorescences, and position of seeds within fruits on the regulation of fecundity in the two outcrossing perennial herbs Epilobium dodonaei and E. fleischeri which replace each other along an altitudinal gradient. 2 Almost all reproductive components were affected by size.
Stöcklin, Jürg, Favre, P.
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Flora, 2011
Abstract Secondary succession on calcareous hillsides, initiated following the abandonment of agro-pastoral practices, is characterized by the transformation of initial short sward into tall herbaceous vegetation and finally woody formations. These structural changes are accompanied by modifications in ecological conditions but some species are able ...
Dujardin, Gaylord +3 more
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Abstract Secondary succession on calcareous hillsides, initiated following the abandonment of agro-pastoral practices, is characterized by the transformation of initial short sward into tall herbaceous vegetation and finally woody formations. These structural changes are accompanied by modifications in ecological conditions but some species are able ...
Dujardin, Gaylord +3 more
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Oikos, 2015
Herbivory induces various responses in plants, thus altering the plants’ phenotype in chemical and morphological traits. Herbivore‐induced changes in vegetative plant parts, plant‐physiological mechanisms, and effects on plant‐animal interactions have been intensively studied from species to community level.
Mathias Hoffmeister +2 more
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Herbivory induces various responses in plants, thus altering the plants’ phenotype in chemical and morphological traits. Herbivore‐induced changes in vegetative plant parts, plant‐physiological mechanisms, and effects on plant‐animal interactions have been intensively studied from species to community level.
Mathias Hoffmeister +2 more
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Plant Morphology and Reproduction
1990Abstract A plant’s reproductive behavior depends in both obvious and subtle ways on its size, growth form, and longevity. Some of these associations are the unavoidable results of the great plasticity found in plants, such as the general correlation between plant size and total flower and fruit production.
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Population Ecology, 1996
AbstractThe wild crucifers, Rorippa indica and Lepidium virginicum, are known to serve as host plants for the diamondback moth (DBM),Plutella xylostella, but they are less suitable than the preferred cultivated cruciferous plant, cabbage, in terms of adult body size and fecundity.
Shefali Begum +3 more
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AbstractThe wild crucifers, Rorippa indica and Lepidium virginicum, are known to serve as host plants for the diamondback moth (DBM),Plutella xylostella, but they are less suitable than the preferred cultivated cruciferous plant, cabbage, in terms of adult body size and fecundity.
Shefali Begum +3 more
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Evolutionary Ecology, 2012
Heterostylous reproductive systems are usually absent on oceanic island. Self-compatibility would, generally, be advantageous for long-distance dispersing species, as it provides reproductive assurance when density of mates is low. The heterostylous reproductive system, often associated with an incompatibility system, may be a constraint on the ...
Bramow, Christina +3 more
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Heterostylous reproductive systems are usually absent on oceanic island. Self-compatibility would, generally, be advantageous for long-distance dispersing species, as it provides reproductive assurance when density of mates is low. The heterostylous reproductive system, often associated with an incompatibility system, may be a constraint on the ...
Bramow, Christina +3 more
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International Journal of Biometeorology, 1986
Mixtures (ratio 1∶1, 45 seeds·dm−2) of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) were enclosed in environmentally controlled acrylic mini-glasshouses and supplied with additional CO2 from September 1981 until September 1982 (547–600 ppm, control: ∼340 ppm CO2). At growth optimum the single leaf area of white clover was 30%
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Mixtures (ratio 1∶1, 45 seeds·dm−2) of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) were enclosed in environmentally controlled acrylic mini-glasshouses and supplied with additional CO2 from September 1981 until September 1982 (547–600 ppm, control: ∼340 ppm CO2). At growth optimum the single leaf area of white clover was 30%
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Controlling morphology and microstructure of conjugated polymers via solution-state aggregation
Progress in Polymer Science, 2023Pei Jian
exaly