Results 31 to 40 of about 2,934,595 (206)

Insect communities of late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Subfossil insect communities from the Quartz Creek site provide a detailed record of both Late Pleistocene steppe–tundra and Holocene boreal forest ecosystems in central Yukon Territory, Canada. Fifteen Pleistocene assemblages (marine isotope stages [MIS] 4 to 2) are dominated by steppe–tundra and dry‐tundra taxa, particularly the weevils ...
Scott L. Cocker, Svetlana Kuzmina, Nick Schafstall, Michael A. Monzon, Duane G. Froese   +4 more
wiley   +1 more source

Defoliation frequency and intensity effects on pasture forage quality

, 1990
Both quantity and quality of pasture forage produced generally varies with frequency and intensity of plant defoliation. However, intensity and frequency of defoliation have rarely been evaluated simultaneously.
Sharrow, S. H., Motazedian, I.
core   +1 more source

Recovery of southern mountain caribou habitat following wildfire in Ulkatcho territory, British Columbia, Canada

The Journal of Wildlife Management, EarlyView.
Caribou forage lichens were present in post‐burn lodgepole pine stands multiple decades before stem‐density was likely open enough to attract wintering caribou. We posit that the prolonged self‐thinning of lodgepole pine after fire may be a greater limiting factor than lichen abundance for habitat recovery in lodgepole pine forests.
Olivier P. Bélanger‐Jumeau, Ulkatcho First Nation, Jill E. Harvey   +2 more
wiley   +1 more source

Genomic loci associated with leaf abscission contribute to machine picking and environmental adaptability in upland cotton (Gossypium hirsutum L.)

Journal of Advanced Research
Introduction: Defoliation by applying defoliants before machine picking is an important agricultural practice that enhances harvesting efficiency and leads to increased raw cotton purity.
Hongge Li, Xiangru Wang, Ning Qin, Daowu Hu, Yinhua Jia, Gaofei Sun, Liangrong He, Hengheng Zhang, Panhong Dai, Zhen Peng, Nianchang Pang, Zhaoe Pan, Xiaomeng Zhang, Qiang Dong, Baojun Chen, Huiping Gui, Baoyin Pang, Xiling Zhang, Shoupu He, Meizhen Song, Xiongming Du   +20 more
doaj   +1 more source

Defoliation Dynamics on Grazing Horizons in Pastures Intercropped by Panicum maximum, Brachiaria brizantha, and Brachiaria decumbens

Tropical Animal Science Journal, 2020
The aim of this study was to quantify and verify the defoliation dynamics process of the Panicum maximum, Brachiaria brizantha, and Brachiaria decumbens intercropping during the formation of four grazing horizons in lenient grazing intensities and high ...
P. B. Fernandes, R. A. Barbosa, M. G. Morais, C. Medeiros-Neto, A. F. Sbrissia, H. J. Fernandes, G. S. Difante   +6 more
doaj   +1 more source

An optical fibre-based frequency dissemination network for Australia

, 2011
An optical-fibre network is being planned for distribution of optical and microwave reference frequencies in Australia. This network would connect a number of research facilities and the National Measurement Institute (NMI), allowing long-range ...
Luiten, A., Orr, B., Wouters, M., Gray, M., He, Y., Shaddock, D., Hsu, M., Warrington, R., Aben, G., Baldwin, K.   +9 more
core   +1 more source

An extinction‐emergency metacollection: Maximising future recovery options for Rhodomyrtus psidioides (Myrtaceae), threatened by Myrtle Rust

PLANTS, PEOPLE, PLANET, EarlyView.
A challenge for wild plant conservation is the rising incidence of plant pathogens that are difficult to interdict, contain and manage. Invasive, fast‐moving, broad‐spectrum pathogens impose societal costs through losses of intrinsically valuable wild biodiversity, ecosystem function, current and potential genetic and biological assets, culturally ...
Robert O. Makinson, Veronica Viler, Amelia J. Martyn Yenson, Craig Stehn, Fiona R. Giblin, Catherine A. Offord, Philippa Walsh, Chantelle A. T. Doyle   +7 more
wiley   +1 more source

Nutrient composition of leaves from defoliated grain amaranth (Amaranthus cruentus L.) plants

Journal of Applied Botany and Food Quality
Utilization of both leaves and grains of Amaranthus cruentus L. could enhance the nutritional and economic benefits of the crop for improved health and livelihoods.
Rachel Byarugaba, Dorothy Nakimbugwe, Susanne Huyskens-Keil   +2 more
doaj   +1 more source

Combined effects of canola plant density and insecticide management strategies on flea beetle abundance, canola defoliation, and yield across the Canadian prairies

Pest Management Science, EarlyView.
Increasing canola plant density reduced flea beetle abundance per plant and increased yield, independent of region or insecticide use, highlighting its potential as a component of integrated pest management. Abstract The crucifer flea beetle, Phyllotreta cruciferae (Goeze), and the striped flea beetle, Phyllotreta striolata (Fabricius) (Coleoptera ...
Shayla Woodland, Héctor A Cárcamo, Tyler Wist, Jennifer Otani, John Gavloski, Rob W Duncan, Tharshinidevy Nagalingam, Alejandro C Costamagna   +7 more
wiley   +1 more source

Características morfogênicas e estruturais do capim-tifton 85 sob doses de nitrogênio e alturas de corte Morphogenic and structural characteristics of tifton 85 bermudagrass under different nitrogen doses and harvesting heights

Revista Brasileira de Zootecnia, 2011
Objetivou-se avaliar características morfogênicas e estruturais do capim-tifton 85 adubado com nitrogênio nas doses de 0, 33, 66, 100 ou 133 kg/ha.ano em três alturas à data de corte (30, 40 ou 50 cm).
Odilon Gomes Pereira, Rivelino Rovetta, Karina Guimarães Ribeiro, Manoel Eduardo Rozalino Santos, Dilermando Miranda da Fonseca, Paulo Roberto Cecon   +5 more
doaj   +1 more source