Current Poinsettia News and Events

Current Poinsettia News and Events, Poinsettia News Articles.
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Caterpillars turn anti-predator defense against sticky toxic plants
A moth caterpillar has evolved to use acids, usually sprayed at predators as a deterrent, to disarm the defenses of their food plants, according to a study publishing July 10, 2019 in the open-access journal PLOS ONE by David Dussourd from the University of Central Arkansas and colleagues. (2019-07-10)

Using population genetics, scientists confirm origins of root rot in Michigan ornamentals
Floriculture is an economically important industry in Michigan. The health of these crops is threatened by Pythium ultimum (root rot), a water mold that infects the roots of popular plants. Despite efforts to control of pathogen, root rot occurs annually for many growers. This study confirmed for the first time that the root rot pathogen is likely moved unnoticed within the state via infected plant material as early symptoms of root rot are easily overlooked. (2019-06-03)

Chelated calcium benefits poinsettias
Cutting quality has an impact on postharvest durability during shipping and propagation of poinsettias. This study identifies treatments that will best benefit these ornamentals during transit to improve point-of-sale presentation. (2019-02-27)

College bowl games deliver $1.5 billion annual economic impact
A new report puts the economic impact of the nation's college bowl games at $1.5 billion annually. The study, conducted by researchers at San Diego State University's Payne School of Hospitality & Tourism Management and George Washington University, is the first comprehensive economic impact study looking at all 41 post-season bowl games. (2016-12-13)

Deficit irrigation from ebb and flow system effective for poinsettia
Scientists investigated whether regulated deficit irrigation in an ebb and flow system could alleviate the effects of salinity stress on poinsettia. Degree of medium saturation had a more dramatic effect on plant size than did salinity. Analyses showed that regulated deficit irrigation resulting in partial saturation of the growing medium is an effective management option for controlling plant height and crop growth, and it limits the accumulation of sodium when raw water contains elevated salinity. (2016-06-22)

Regulating poinsettia's height
A study determined whether a range of plant height can be achieved using controlled water deficit, and investigated possible adverse effects of WD on ornamental qualities of poinsettia. Results showed that controlled water deficit can be an effective method of height control, but that it may also decrease bract size. (2015-04-06)

San Diego County fires still rage
The San Diego County fires that began on Wednesday, May 14, as a single fire that erupted into nine fires burned out of control for days. (2014-05-19)

Fires continue in San Diego County, Calif.
Seven fires are still burning in San Diego County, Calif. (2014-05-16)

Researchers use 'banker plants' to help battle whitefly pests
A US Department of Agriculture scientist is showing growers how to combat whiteflies and other crop pests by using plants as storehouses for predatory insects that can migrate to cash crops and feed on the pests attacking those crops. (2012-09-10)

Engineering blue-hued flowers
Experiments were designed to identify the anthurium cultivars and colors with the best potential to transform to blue-colored flowers. Scientists investigated the relationship between epidermal vacuolar pH and factors including cultivar, spathe color, developmental stage of the spathe, location of anthocyanin within the spathe, differences between the leaf surfaces, and postharvest changes. Results suggested that in anthurium, corals may be best suited for transformation because they contain lower levels of pH-reducing anthocyanins. (2011-06-26)

UC Riverside botanist to receive Paul Ecke Jr. Award of Excellence
Jodie Holt, a professor of plant physiology at the University of California, Riverside, and the botanical consultant for James Cameron's film (2010-08-20)

UK geneticists shed light on flowering plants
Scientists have uncovered a new piece in the puzzle about why some plants flower in spring/autumn and some in summer. They have isolated a gene responsible for regulating the expression of CONSTANS, an important inducer of flowering, in Arabidopsis. This knowledge will enable more predictable flowering, better scheduling and reduced wastage of crops. The work is presented at the Society for Experimental Biology Annual Meeting on Wednesday, June 30, 2010. (2010-06-29)

Plentiful poinsettias without PGRs
Poinsettia, a holiday favorite, is produced using plant growth regulators (PGRs) to achieve their desired height, but the high cost of PGRs, environmental use restrictions, and increasing pressure from consumers are driving researchers to explore new alternatives. Argentine researchers recently completed a study to determine if manipulation of red and far-red light ratios can be a successful alternative to the use of PGRs. Results indicate that the new approach is effective and environmentally beneficial. (2009-11-04)

Medical myths for the holiday season: True, false or unproven?
In new study published in British Medical Journal, Indiana University School of Medicine researchers applied rigorous search methodology to explore the science behind six myths commonly associated with the holidays yet relevant year-round. (2008-12-17)

Illuminating the dark side of plants
Plant poisoning is a significant problem around the world. In the United States, exposures to plant toxins account for approximately ten percent of the annual calls to the nation's Poison Control Centers. Responding to the need for a useful guide to the harmful potential of plants, Handbook of Poisonous and Injurious Plants provides portable, comprehensive information to the toxic plants encountered everywhere, both inside and outside the home. (2007-02-14)

Whiteflies and plant viruses can help each other to speed up biological invasion
An invasive whitefly has developed mutualistic relationships with the plant viruses it transmits and is able to increase its population much faster on virus-infected plants than on healthy plants, whereas its indigenous counterpart is unable to do so, according to the new research carried out at Zhejiang University and Chinese Academy of Agricultural Sciences, China. (2007-01-30)

New poinsettia for the nontraditionalist
U of I plant scientist Daniel Warnock hopes that one day soon a uniquely marbled pink poinsettia will be available to consumers who like decorating for the holidays with a flare for the unusual. The variety is yet unnamed, but is a natural mutation of a poinsettia variety called Premium Picasso. (2006-12-07)

Ancient greenhouse emissions--possible lessons for modern climate
Humans are performing a high-stakes climate experiment by burning fossil fuels that release heat-trapping greenhouse gases into the atmosphere. The outcome of that experiment is uncertain and computer models can do only so much to predict the future. (2006-02-16)

UF Researcher: Global warming dramatically changed ancient forests
Palmettos in Pennsylvania? Magnolias in Minnesota? The migration of subtropical plants to northern climates may not be too far-fetched if future global warming patterns mirror a monumental shift that took place in the past, new research by an international team of scientists suggests. (2005-11-10)

Rapid warming caused vegetation changes
Fossil leaves buried 55 million years ago show, for the first time, that rapid warming not only changed animal communities, but plant communities as well; and that the ancient warm spell may be representative of global warming's effects in Earth's future, according to an international team of researchers. (2005-11-10)

Did You Know? The Truth About The Poinsettia
Poinsettias are commonly found in North American homes during the holiday season. Orginating as tropical trees they were transformed into beautiful, branched plants in 1923. However, it wasn't until recently that plant pathologists discovered what gave poinsettias their bushy, branched appearance. Discover the secret, plus other poinsettia tips in this release. (1998-12-02)

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