Results 101 to 110 of about 307,139 (315)
Pola Pertanian Terpadu Ternak Dan Tanaman Hortikultura Di Kota Pekanbaru [PDF]
, 2012 On integrated faming sistem which includes the provision of necessary technology types/varietas, various. Relatively favorable economic value commodities such as food crops, horticulture, livestock.
Siswati, L. (Latifa)
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Color polymorphism in Anemone coronaria: Correlations with soil, climate, and flowering phenology
American Journal of Botany, EarlyView.Abstract Premise Flower color polymorphism (FCP) is thought to be driven by multiple selection agents. Although widely associated with visual attraction of multiple pollinators, FCP is also often correlated with abiotic factors. We explored the links between abiotic conditions, flowering phenology, and FCP in the winter‐flowering geophyte Anemone ...
Tzlil Labin +4 more
wiley +1 more source
Factors to Consider in Selecting a Soil Testing Lab [PDF]
, 2011 This factsheet provides guidelines for selecting which tests one should use and finding soil testing laboratories that perform those tests. It is a fantastic tool for Alaskans as it highlights available options for tests, types of tests and testing ...
Jahns, Thomas R.
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American Journal of Botany, EarlyView.Abstract Premise Evolutionary theory predicts polymorphism should be rare; however, intraspecific variation in floral color is common and can be attributed to genetic drift, plasticity, or variable selection. Examining floral color polymorphism both within contact zones and across a species' range can reveal the mechanisms maintaining this variation ...
Emma Fetterly +6 more
wiley +1 more source
A Transportation Alliance of Environmental Horticulture Producers in Georgia: Issues and Feasibility [PDF]
Transportation and shipping costs of ornamental horticulture are 10% of total cost of production in Georgia. With many small to medium sized producers using their own independent transportation system, methods to optimize vehicle operations are desired ...
Chappell, Matthew R. +4 more
core +1 more source
Temperature and the evolution of flower color: A review
American Journal of Botany, EarlyView.Abstract Flower colors brighten our natural world. How and why have they evolved? How might ongoing global warming alter their evolutionary trajectories? In this review, I examine the influence of ambient temperature on the evolution of flower color.
Elizabeth P. Lacey
wiley +1 more source
Pollinator, herbivore, and climatic selective pressures differ across a floral color transition zone
American Journal of Botany, EarlyView.Abstract Premise Spatial and temporal variations in climate and ecological interactions may underlie the origin and maintenance of floral color polymorphisms across a species range. Betalains are nitrogen‐containing, phylogenetically restricted pigments that, like the widespread and well‐studied anthocyanins and carotenoids, may attract pollinators ...
Sierra L. Jaeger +5 more
wiley +1 more source
Horticulture, livelihoods and pesticides in Africa : Evidence from south-West Cameroun [PDF]
, 2008 This paper documents change in agro-chemical input use in horticulture using repeat surveys in 1995 and 2004 of about 300 households around Muea, Cameroon.
Nkeng, Michel Ndoumbé +3 more
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American Journal of Botany, EarlyView.Abstract Premise Understanding how plant populations adapt to water limitation through stomatal traits is key to predicting drought responses. The dominant C4 grass Andropogon gerardi, distributed across sharp climate gradients in North America, offers an excellent focal species to study stomatal architecture (size and density).
Jack Sytsma +6 more
wiley +1 more source
Neighborhood social environments and mental health among youth and adults in public housing
American Journal of Community Psychology, EarlyView.Abstract Neighborhoods influence health in part through social processes. However, little is known about how multiple neighborhood social processes co‐occur, or about within (vs. between) neighborhood variation in social processes and health. This study asked how residents of a large public housing development describe their neighborhood and used ...
Jane Leer +3 more
wiley +1 more source