Results 61 to 70 of about 17,840 (262)
Variable Selection and Model Choice in Geoadditive Regression Models [PDF]
, 2007 Model choice and variable selection are issues of major concern in practical regression analyses. We propose a boosting procedure that facilitates both tasks in a class of complex geoadditive regression models comprising spatial effects, nonparametric ...
Hothorn, Torsten +2 more
core +1 more source
Development and adoption of Kernza—A perennial grain crop for sustainable agriculture
PLANTS, PEOPLE, PLANET, EarlyView.Annual cereal grains account for ~50% of human food calories, but cultivation of these crops has resulted in major environmental and social issues worldwide. For nearly three decades, researchers have been breeding intermediate wheatgrass—a perennial cool‐season grass—to serve as the world's first commercial‐scale perennial grain crop to improve ...
Jessica L. Gutknecht +15 more
wiley +1 more source
Acta Scientiarum: Animal Sciences, 2013 The experiment was carried out to evaluate the patterns of defoliation in plants of various heights in the same pasture of Brachiaria decumbens cv. Basilisk under continuous stocking with cattle.
Manoel Eduardo Rozalino Santos +5 more
doaj +1 more source
Effects of large herbivores on grassland arthropod diversity [PDF]
, 2015 Both arthropods and large grazing herbivores are important components and drivers of biodiversity in grassland ecosystems, but a synthesis of how arthropod diversity is affected by large herbivores has been largely missing. To fill this gap, we conducted
Olff, H +4 more
core +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Many plant species worldwide are struggling to regenerate due to the ongoing effects of climate change. These effects appear to be further exacerbated by the loss of keystone megafauna, which were important seed dispersers. By identifying the traits commonly seen in seeds spread by modern elephants, it is possible to predict which species likely ...
Andrew J. Tighe
wiley +1 more source
Frontiers in Plant Science, 2019 Dual-use production systems that utilize the green leaves as well as seeds from amaranth are highly promising for small-scale farmers around the world. The leaves are an important source of nutrients for farming families, while seeds can provide income ...
Natalie Hoidal +3 more
doaj +1 more source
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2020 The aim of this study was to evaluate the defoliation patterns of individual tillers, efficiency of herbage utilisation, and forage production in continuously stocked Brachiaria humidicola cv. Comum swards during periods of the year of restricted pasture
Tiago Miqueloto +5 more
doaj +1 more source
Impact of the Spruce Budworm (Lepidoptera: Tortricidae) on the Ottawa and Hiawatha National Forests, 1978-1980 [PDF]
, 2017 The Michigan Impact Plot System was established during 1978 and 1979 to obtain a data base for quantifying the impact of the spruce budworm in the Ottawa and Hiawatha National Forests.
Lynch, Ann M +2 more
core +2 more sources
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 +7 more
wiley +1 more source
Effect of different mulching and cutting regimes on the vegetation of upland meadow
Plant, Soil and Environment, 2004 The effect of different cutting and mulching regimes on the structure of the sward and plant species diversity of semi-natural meadow (Arrhenatherion alliance) was investigated in manipulative experiment over five years. Mulching once a year in September
J. Gaisler, M. Hejcman, V. Pavlů
doaj +1 more source