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Ecology and Evolutionary Biology Commons™
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- Keyword
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- Competition (5)
- Growth analysis (4)
- Functional equilibrium (3)
- Abutilon theophrasti (2)
- Biomass partitioning (2)
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- Duration of weed interference (2)
- Evapotranspiration (2)
- Helianthus annuus (2)
- Integrated weed management (2)
- Interplant competition (2)
- Leaf area index (2)
- Ontogenetic drift (2)
- Optimal partitioning theory (2)
- Phenology (2)
- Resource acquisition (2)
- Soil organic matter (2)
- <i>Zea mays </i>LA new maize (<i>Zea mays</i> L.) simulation model (1)
- ABUTH (1)
- AFLP (1)
- AMARE (1)
- AMATA (1)
- AMBTR (1)
- Amaranthus retroflexus (1)
- Amaranthus rudis (1)
- Ambrosia trifida (1)
- Angular dispersion (1)
- Application timing (1)
- Arctic–alpine ecosystems (1)
- Atrazine (1)
- Baker's law (1)
- Publication
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Articles 31 - 37 of 37
Full-Text Articles in Ecology and Evolutionary Biology
Changes In Nitrogen Use Efficiency And Soil Quality After Five Years Of Managing For High Yield Corn And Soybean, Timothy J. Arkebauer, Achim R. Dobermann, Kenneth G. Cassman, Rhae A. Drijber, J. Lindquist, James E. Specht, Daniel T. Walters, Haishun Yang
Changes In Nitrogen Use Efficiency And Soil Quality After Five Years Of Managing For High Yield Corn And Soybean, Timothy J. Arkebauer, Achim R. Dobermann, Kenneth G. Cassman, Rhae A. Drijber, J. Lindquist, James E. Specht, Daniel T. Walters, Haishun Yang
John L. Lindquist
Average corn grain yields in the USA have increased linearly at a rate of 1.7 bu/acre over the past 35 years with a national yield average of 140 bu/acre. Corn yield contest winners and simulation models, however, indicate there is ~100 bu/a in exploitable corn yield gap. Four years (1999-2002) of plant development, grain yield and nutrient uptake were compared in intensive irrigated maize systems representing (a) recommended best management practices for a yield goal of 200 bu/acre (M1) and (b) intensive management aiming at a yield goal of 300 bu/acre (M2). For each management level, three levels of plant …
Comparative Nitrogen Uptake And Distribution In Corn And Velvetleaf (Abutilon Theophrasti), John L. Lindquist, Darren C. Barker, Stevan Z. Knezevic, Alexander R. Martin, Daniel T. Walters
Comparative Nitrogen Uptake And Distribution In Corn And Velvetleaf (Abutilon Theophrasti), John L. Lindquist, Darren C. Barker, Stevan Z. Knezevic, Alexander R. Martin, Daniel T. Walters
John L. Lindquist
Weeds compete with crops for light, soil water, and nutrients. Nitrogen (N) is the primary limiting soil nutrient. Forecasting the effects of N on growth, development, and interplant competition requires accurate prediction of N uptake and distribution within plants. Field studies were conducted in 1999 and 2000 to determine the effects of variable N addition on monoculture corn and velvetleaf N uptake, the relationship between plant N concentration ([N]) and total biomass, the fraction of N partitioned to leaves, and predicted N uptake and leaf N content. Cumulative N uptake of both species was generally greater in 2000 than in …
The Spatial Signature Of Biotic Interactions Of A Clonal And A Non-Clonal Palmetto In A Subtropical Plant Community, Mizuki Takahashi, Toshiro Kubota, Liana Horner, Nathan Keller, Warren Abrahamson
The Spatial Signature Of Biotic Interactions Of A Clonal And A Non-Clonal Palmetto In A Subtropical Plant Community, Mizuki Takahashi, Toshiro Kubota, Liana Horner, Nathan Keller, Warren Abrahamson
Warren G. Abrahamson, II
Spatial analyses of plant-distribution patterns can provide inferences about intra- and interspecific biotic interactions. Yet, such analyses are rare for clonal plants because effective tools (i.e., molecular markers) needed to map naturally occurring clonal individuals have only become available recently. Clonal plants are unique in that a single genotype has a potential to spatially place new individuals (i.e., ramets) in response to intra- and interspecific biotic interactions. Laboratory and greenhouse studies suggest that some clonal plants can avoid intra-genet, inter-genet, and inter-specific competition via rootplacement patterns. An intriguing and yet to be explored question is whether a spatial signature of …
Rising Ozone Concentrations Decrease Soybean Evapotranspiration And Water Use Efficiency Whilst Increasing Canopy Temperature, Andy Vanloocke, Amy M. Betzelberger, Elizabeth A. Ainsworth, Carl J. Bernacchi
Rising Ozone Concentrations Decrease Soybean Evapotranspiration And Water Use Efficiency Whilst Increasing Canopy Temperature, Andy Vanloocke, Amy M. Betzelberger, Elizabeth A. Ainsworth, Carl J. Bernacchi
Andy VanLoocke
Extreme Environments Select For Reproductive Assurance: Evidence From Evening Primroses (Oenothera), Margaret Evans, David Hearn, Kathryn Theiss, Karen Cranston, Kent Holsinger, Michael Donoghue
Extreme Environments Select For Reproductive Assurance: Evidence From Evening Primroses (Oenothera), Margaret Evans, David Hearn, Kathryn Theiss, Karen Cranston, Kent Holsinger, Michael Donoghue
Kent E Holsinger
• Competing evolutionary forces shape plant breeding systems (e.g. inbreeding depression, reproductive assurance). Which of these forces prevails in a given population or species is predicted to depend upon such factors as life history, eco- logical conditions, and geographical context. Here, we examined two such predictions: that self-compatibility should be associated with the annual life history or extreme climatic conditions.
• We analyzed data from a clade of plants remarkable for variation in breeding system, life history and climatic conditions (Oenothera, sections Anogra and Kleinia, Onagraceae). We used a phylogenetic comparative approach and Bayesian or hybrid Bayesian tests to account …
Rapid Diversification Of Tragopogon And Ecological Associates In Eurasia, Charles Bell
Rapid Diversification Of Tragopogon And Ecological Associates In Eurasia, Charles Bell
Charles D. Bell
No abstract provided.
Phylogeny And Diversification Of Valerianaceae (Dipsacales) In The Southern Andes, Charles D. Bell
Phylogeny And Diversification Of Valerianaceae (Dipsacales) In The Southern Andes, Charles D. Bell
Charles D. Bell
No abstract provided.