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Deborah Dean, Phillip A. Wadl, Xinwang Wang, William E. Klingeman, Bonnie H. Ownley, Timothy A. Rinehart, Brian E. Scheffler, and Robert N. Trigiano

parentage is essential for breeding programs and patent protection. Moreover, early and accurate identification of invasive species could be a useful tool in combating plant invasiveness. As more ornamental plant cultivars, including selections that offer

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Jong-Yi Fang and Siguina Traore

. Plant. 15 473 479 Nicoloff, H. 2003 Effect of sodium acetate and sodium chloride on EMS-induced chlorophyll mutations in barley Mutat. Res. 23 57 62 Rego, L.V. Faria, R.T. 2001 Tissue culture in ornamental plant breeding review Crop Breed. Appl. Biot. 1

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Phillip A. Wadl, Robert N. Trigiano, Dennis J. Werner, Margaret R. Pooler, and Timothy A. Rinehart

study presented here. Genetic relatedness, particularly among botanical varieties and species, is an important consideration when estimating the use and practicality of wide hybridizations in ornamental plant breeding. Continuous, qualitative, and wide

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Zhe Cao, Shunzhao Sui, Qian Yang, and Zhanao Deng

Cultivated caladium is an ornamental aroid produced for container or hanging basket plants or grown in landscapes for their variably shaped, colorful foliage. The ornamental value of caladium plants, to a great extent, depends on their leaf

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Juan Chen, Nianhe Xia, Xiaoming Wang, Richard C. Beeson Jr., and Jianjun Chen

well as their DNA contents. It is anticipated that information gathered from this study could help improve medicinal and ornamental value of Lonicera species and cultivars through plant breeding. Materials and Methods Lonicera cultivars listed in

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Joseph J. Rothleutner, Ryan N. Contreras, Virginia O. Stockwell, and James S. Owen

example, in some areas of Europe, cotoneasters have been banned as landscape ornamentals as a result of susceptibility to fire blight and concern that diseased Cotoneaster plants in the landscape may provide an inoculum source for disease in pear and

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Andrew Sherwood, Lisa W. Alexander, Matthew D. Clark, Steve McNamara, and Stan C. Hokanson

to the breeding objectives) to ensure that selections will have the desired phenotype in the target environment. For other ornamental plants, components of plant architecture have been shown to have a genetic basis. For example, Crespel et al

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Yongjun Yue and John M. Ruter

. Among the ornamental plants, Chrysanthemum (187), Alstroemeria (35), Dahlia (34), Streptocarpus (30), Begonia (25), Dianthus (18), and Rhododendron (15) have been studied the most in mutation breeding ( Maluszynski et al., 1992 ). Mutation

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Teresa E. Seijo, Natalia A. Peres, and Zhanao Deng

Caladium ( Caladium × hortulanum Birdsey) is an ornamental aroid grown as landscape and potted plants. They are valued for their colorful foliage that comes in various leaf shapes and coloration patterns containing shades of red, pink, white

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Winston Elibox and Pathmanathan Umaharan

second breeding cycle. Over several cycles, important genes for productivity will be accumulated. Twenty-one progeny plants of the 840 evaluated possessed productivity values of 11 or greater. Such high productivity levels have never been observed in