Do differences in plasticity during early growth lead to differing success in competition? A test using four co-occurring annual Papaver

摘要: Plant species differ in their ability to transform available resources biomass and respond a plastic way environmental circumstances; we hypothesized that such differences among four weed taxa of Papaver would explain competitive response. We first compared two populations each rhoeas L., P. dubium L. ssp. dubium, lecoqii (Lamotte) Syme P. argemone L., grown greenhouse for 6 weeks nutrient gradient combined with light treatments elucidate possible responses. As there were clear differences, second experiment evaluated whether these also meant response, during early growth, when tested against crops (wheat, rape). The assumption response was linked the not supported: even though extent plasticity existed, effect competition similar taxa. Thus, higher recourses did lead stronger competitiveness growth.