Increased spatial dominance in high nitrogen, saturated soil due to clonal architecture plasticity of the invasive wetland plant, Phalaris arundinacea

摘要: Clonality as a plant growth strategy has been successful adaptation contributing to clonal plants being the dominant vegetation in many ecosystems and implicated significant factor invasiveness. The objective of this study was determine if Phalaris arundinacea, an invasive wetland plant, modifies its behavior when grown high resource conditions. When ideal conditions (high soil-N moisture), we hypothesized that along with increase tiller production robustness (biomass per tiller), P. arundinacea would spatial spread placement (distance from parent daughters). To test conducted greenhouse which grew seedlings under two levels (no nitrate addition or 40 g N m−2 year−1) at soil moisture (dry saturated) for 10 weeks recorded (angle distance plant) each produced. Total aboveground belowground biomass, shoot/root ratio, biomass were measured conclusion experiment. Plants saturated produced significantly more tillers widely dispersed. Surprisingly, did not affect most characteristics pattern, though production, tiller. These results indicate different aspects early stage colonization. This new information provides mechanism explain how aggressively competes space habitats.