To determine needle chlorophyll concentrations, four seedlings from each treatment (n = 4) were randomly sampled. All the needles were freeze-dried for 72-h and then ground with a Thomas Wiley Mini-Mill (Thomas Scientific, Swedesboro, NJ, USA). Chlorophyll was extracted from pulverized needle samples … See more One-year-old, container-grown, black spruce, white spruce, and jack pine dormant seedlings were obtained from the Smoky Lake Forest Nursery (Smoky Lake, AB, Canada). Seeds of these seedlings were collected from … See more At the end of the treatments, one or two seedlings per species per tub (n= 6) were randomly selected and green, healthy needles were separated from the chlorotic and necrotic … See more The seedlings were grown in forestry filter sand (Target Products Ltd, Abbotsford, BC, Canada) in the Styroblock containers (Beaver Plastics Ltd, … See more Immediately before and after 14 weeks of treatments, all seedling (n = 32) shoot heights were measured from the root collar to the shoot tip, and stem diameter measured at the root collar. The relative shoot height growth … See more WebApr 14, 2024 · The needle samples were washed and dried prior to acidic microwave-assisted digestion followed by quantitative determination using spectrometric methods. …
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WebApr 16, 2024 · When layers of pine needles have accumulated on the roof, moisture becomes trapped, creating a favorable environment for mold and moss growth. Not only can this pose a health hazard to you and your family, but it can also compromise the structural integrity of your roof over time. Easy Matting WebJun 1, 2024 · The investigation was focused on the following elements: Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Se, Sr, U, V, and Zn. The one-year-old needles mainly contained higher contents of elements than fresh shoots; in many cases, the values differed statistically significantly. burden of the sky band
Accumulation of Major, Minor and Trace Elements in Pine Needles
WebApr 14, 2024 · Pine needles represent good bio-monitors of air pollutants, due to their waxy surfaces, which are prone to accumulate gaseous pollutants as well as polluting particulates [ 8, 9 ]. Regarding metal pollution, pine needles have been studied in urban and remote areas in different parts of the world during the last decades. WebAug 24, 2024 · The burning of pine needles produces hazardous gas components to the environment. Pine needle waste contains a high amount of cellulosic material ( 41% cellulose and 35% lignin), which can... WebMay 20, 2024 · Pine needles are used in several East Asian countries as food or traditional medicine. It contains functional components that exhibit a wide spectrum of pharmacological effects such as antioxidant, antimicrobial, anti-diabetic, and anti-inflammatory activities. We determined and characterized the novel antimicrobial peptides (AMPs) isolated from … halloween costumes retail stores