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Jennifer Drew, Chengyan Yue, Neil O. Anderson, and Philip G. Pardey

patents are 61% of all varietal rights and virtually all are for horticultural plants ( Drew, 2010 ). Ornamental plants account for 77% of all horticultural IP rights and 84% of all plant patents ( Drew, 2010 ). The steady growth of bedding and gardening

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Christian Nansen, Rachel Purington, and Machiko Murdock

In general, pesticides are applied to ornamental plants to protect against crop damage by insects, diseases, and additional plant pests, but it is equally important that pesticide applications themselves do not adversely affect commercialization

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Dong Sik Yang, Ki-Cheol Son, and Stanley J. Kays

The use of ornamental plants in interiorscapes is increasingly being studied for their ability to remove volatile organic compounds, thereby improving the air quality of indoor environments ( Kim et al., 2008 ; Yoo et al., 2006 ). Deterioration of

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Andrew H. Jeffers, William E. Klingeman, Charles R. Hall, Marco A. Palma, David S. Buckley, and Dean A. Kopsell

opportunities for nursery growers. Several prior efforts have been undertaken to quantify cost estimates for various ornamental plant production systems in the southeastern U.S. ( Hall et al., 1987 ; Hinson et al., 2007 ; Taylor et al., 1986 , 1990

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William E. Klingeman, Gretchen V. Pettis, and S. Kristine Braman

, 1996 ; Hubbell et al., 1997 ). Garden and landscape enthusiasts are also willing to seek pest- and disease-resistant ornamental plants for residential landscape use despite initial public skepticism about IPM ( Ball, 1986 ; Garber and Bondari, 1992

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Kelly J. Vining, Ryan N. Contreras, Martin Ranik, and Steven H. Strauss

varieties. GE is supported by rapidly expanding science and technology but, to our knowledge, has not led to any commercial releases for woody ornamental plants. We will consider the technical approaches and limitations of both approaches as well as the

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Marcin Nowicki, Edward E. Schilling, Sarah L. Boggess, Logan C. Houston, Matthew L. Huff, Margaret E. Staton, Jayne A. Lampley, and Robert N. Trigiano

home garden ornamental plant in shady, moist areas with several cultivars of all three taxa available commercially, and some of them recognized by patents ( Hawks, 2008 ; Hoffman et al., 2005 ). At the basal part of Green and Gold diaspores, there is

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Zhang Zhiming

Due to the large area and the complex topography and climate. a great deal of wild ornamental plants are still hidden in the depth of forests and on the highland plateaus--places difficult to approach by man. In the Three N Regions only, there are 51 species of Rhododendron, 27 of Lilium, 83 of Rosa, 30 of Iris, 40 of Clematis, etc., yet to be explored and utilized. Aiming at this, we made extensive introduction of plants in general and intensive introduction of certain families and genera in particular, with good results. At present we have in our living collection 12 species of Clematis, 24 of Rosa, 13 of Lilium, 10 of Iris, 8 of Tulip, 6 of Aquilegia, 10 of Thalictrum, 20 of Gentiana, 80 of ferns, 40 of Begonia, 50 of the Araceae. Seed germination tests, micropropagation, breeding for new varieties and other experiments and researches have been carried out on many of these plant groups.

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Yan Chen, Ronald E. Strahan, and Regina P. Bracy

applications are often required for postemergence herbicides and may cause ornamental plant injury if spray drift occurs. Selective preemergence herbicides registered for yellow nutsedge control in landscapes include dichlobenil, dimethenamid-P, and metolachlor

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John L. Griffis Jr.

high is 82 °F and the average low temperature is 78 °F (Winrock International, unpublished data). The production of ornamental plants and flowers could become an important sector of horticulture in Senegal, although there is very limited local knowledge