Results 31 to 40 of about 83,383 (218)

Apospory and Diplospory in Diploid Boechera (Brassicaceae) May Facilitate Speciation by Recombination-Driven Apomixis-to-Sex Reversals

open access: yesFrontiers in Plant Science, 2019
Apomixis (asexual seed formation) in angiosperms occurs either sporophytically, through adventitious embryony, or gametophytically, where an unreduced female gametophyte (embryo sac) forms and produces an unreduced egg that develops into an embryo ...
John G. Carman   +15 more
doaj   +1 more source

"Leftward March": Student Liberalism at the Utah State Agricultural College

open access: yesUtah Historical Quarterly, 2007
The Great Depression and the years leading up to World War II forever changed American society. The debilitating effects of the Depression “produced a profound shaking-up of American Society,†wrote Arthur M. Schlesinger, Jr. (1) Economic instability, an evolving national politic, and the growing threat of another world war, all combined to catapult
openaire   +1 more source

Recreation Benefits of U.S. Parks [PDF]

open access: yes, 2007
Over 90 percent of people living in the United States participate in some type of outdoor recreation, from walking the dog to rock climbing. These activities increase a person’s well-being and are examples of recreation benefits.
Kaval, Pamela
core   +1 more source

Growth Hormone Promotes Lipolysis and Impairs Insulin Sensitivity by Activating the ERK/HSL Signaling Pathway in Bovine Adipocytes

open access: yesAnimal Research and One Health, EarlyView.
This study was to evaluate the role of GH in lipolysis and insulin sensitivity in bovine adipocytes and clarify the underlying mechanism. Our findings demonstrate that GH activates ERK/HSL signaling pathway, promotes lipolysis, and impairs insulin sensitivity in bovine adipocytes.
Xinxing Gao   +10 more
wiley   +1 more source

Potential impact of climate change on the global geographical distribution of the invasive species, Cenchrus spinifex (Field sandbur, Gramineae)

open access: yesEcological Indicators, 2021
Field sandbur (Cenchrus spinifex Cav.) is an annual grass native to North America that has spread widely in South America, Europe, Asia, Australia and other regions, reducing crop and grassland productivity.
Jing Cao   +6 more
doaj   +1 more source

Development and adoption of Kernza—A perennial grain crop for sustainable agriculture

open access: yesPLANTS, 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

Intake and diet preference of dairy heifers grazing mixed or alternating rows of birdsfoot trefoil and cool‐season grasses

open access: yesGrassland Research
Background Mixtures with birdsfoot trefoil (BFT) increase herbage intake in grazing cattle. We hypothesized that BFT spatially separated from grasses would increase preferential grazing of BFT and herbage intake compared to grass and BFT in mixed rows ...
Michael D. Peel   +8 more
doaj   +1 more source

Thriving or surviving? A latent profile analysis of resilience, psychological wellbeing and professional quality of life in early‐career veterinarians in Canada

open access: yesVeterinary Record, EarlyView.
Abstract Background Various adverse mental health outcomes (e.g., burnout) have been reported and shown to impact the longevity of veterinarians’ careers, especially during the early career. Both compassion fatigue (CF) and compassion satisfaction (CS) are significant predictors of burnout.
Tipsarp Kittisiam   +6 more
wiley   +1 more source

Strategies for combating plant salinity stress: the potential of plant growth-promoting microorganisms

open access: yesFrontiers in Plant Science
Global climate change and the decreasing availability of high-quality water lead to an increase in the salinization of agricultural lands. This rising salinity represents a significant abiotic stressor that detrimentally influences plant physiology and ...
Biswa R. Acharya   +4 more
doaj   +1 more source

Litter Accumulation and Nutrient Content of Roadside Plant Communities in Sichuan Basin, China

open access: yesPlants, 2017
It is widely recognized that feedbacks exist between plant litter and plant community species composition, but this relationship is difficult to interpret over heterogeneous conditions typical of modified environments such as roadways.
Huiqin He, Thomas Monaco
doaj   +1 more source

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