background and objectives:alzheimer’s disease (ad) is a neurodegenerative disorder. nowadays, many investigations are performed to find new drugs for ad and medicinal plants are considered as one of the most important sources for developing new drugs. according to the role of oxidant agents and acetylcholinesterase enzyme (ache) in ad, plants with antioxidant and ache inhibition properties coul...

The Coppermine River in western Nunavut is one of Canada's great Arctic rivers, yet its vascular plant flora is poorly known. Here, we report the results of a floristic inventory of the lower Coppermine River valley and vicinity, including Kugluk (Bloody Falls) Territorial Park and the hamlet of Kugluktuk. The study area is approximately 1,200 km2, extending from the forest-tundra south of the ...

After harvesting, sites in the Interior Cedar–Hemlock Dry Warm subzone (ICHdw) frequently regenerate to rich, brush-dominated communities that can inhibit successful conifer establishment. Species common to these post-harvested areas include: paper birch (Betula papyrifera Marsh.), Douglas maple (Acer glabrum Torr. var. douglasii [Hook.] Dipp.), redstem ceanothus (Ceanothus sanguineus Pursh), b...

Abstract Weed control efficacy and ornamental plants tolerance to dimethenamid–p (0.75%) + pendimethalin (1%) granular herbicide was evaluated in flat tray-grown weeds container-grown plants. Dimethenamid – p at 2.94 kg ai.ha–1 (2.62 lb ai.A–1) controlled the tested broadleaf grassy >80% for up 8 wk following application. The higher rates of ≥5.88 (≥5.25 provided 94% 99% weed species but...

focus on primary succession in habitats formed on May 18, 1980, to explore mechanisms that control establishment of plants on new landforms. The rate of early primary succession is generally believed to be slow (cf. Crocker & Major 1955; Shure & Ragsdale 1977; Houle & Phillips 1989), though rates can differ significantly. As conditions are ameliorated by weathering and nutrient accumulation, th...