Assessing Seed Longevity of the Invasive Weed Navua Sedge (), by Artificial Ageing.

Navua sedge ( (Ridley) Mattf. & Kukenth) is a significant agricultural and environmental weed found in tropical island countries including north Queensland, Australia. It is a prolific seed producer and consequently forms a high-density seedbank, and therefore understanding the longevity and persistence of the seeds can provide critical information required for the management of this species.

Effect of Rhizome Fragment Length and Burial Depth on the Emergence of a Tropical Invasive Weed (Navua Sedge).

(Navua sedge) is a problematic perennial weed in pastures and crops including sugarcane, banana, rice, and fruits and vegetables in tropical climates. It reproduces both via rhizomes and seeds. As a regenerative and storage organ, these rhizomes play an important part in the invasion, establishment, and persistence of this weed.

Biology, Ecology and Management of the Invasive Navua Sedge ()-A Global Review.

Navua sedge ( (Ridley) Mattf. & Kukenth) is an invasive perennial sedge, native to tropical Africa, which is threatening many natural ecosystems and agroecosystems, especially in northern Queensland, Australia. Crop and pasture production have been impacted by Navua sedge and it is also directly causing reductions in dairy and beef production in affected regions.

Influence of elements of climate change on the growth and fecundity of Datura stramonium.

In this study, the performance of Datura stramonium, an invasive weed of soybean and solanaceous crops, was examined under different elements of climate change. Experiments conducted in CO chambers at ambient CO (400 ppm) and elevated CO (700 ppm) levels under both well-watered and drought conditions exhibited the fertilization effect of elevated CO This was, however, limited by drought. Clearly, growth of D.

Influence of soil moisture regimes on growth, photosynthetic capacity, leaf biochemistry and reproductive capabilities of the invasive agronomic weed; Lactuca serriola.

Global temperatures are predicted to increase by 1.5-5.9°C during this century, and this change is likely to impact average rainfall, with predictions that water deficit will perhaps be the most severe threat to sustainable agriculture.