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RongNa Liang and Brent K. Harbaugh

Trachelium caeruleum has been grown in the United States as a cut flower for about a decade. Only two cultivars, `White Umbrella' and `Purple Umbrella', were readily available for commercial use before 1997, but nine new cultivars became available in the last few years. Comparative performance trials have been lacking for these cultivars in the United States. This trial evaluated 11 cultivars of trachelium for cut flower production performance (vegetative and flowering characteristics) and postharvest longevity. The evaluation was in the spring of 1999 at Bradenton, Fla. (27.4 N, 82.5 W; AHS Heat Zone 10; USDA Cold Hardiness Zone 9b). Plant height for all cultivars except `White Umbrella' was above 30 inches (76 cm), a height required for acceptance as a high quality cut flower. `Summer Lake' had the smallest inflorescence diameter of 3.9 inches (10.0 cm) and `Lake Powell' the largest at 6.1 inches (15.4 cm). `White Umbrella' (160 days from seed to flower) was the earliest to flower and `Lake Powell' (169 days) the last to flower. Vase life was as short as 7 days for `Summer Lake' to as long as 11 days for `White Umbrella'. `Lake Powell' (white color group), `Summer Blue Wonder' (blue color group), and `Lake Superior' (purple color group) had the highest overall rankings.

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Peitao Lü, Xinmin Huang, Hongmei Li, Jiping Liu, Shenggen He, Daryl C. Joyce, and Zhaoqi Zhang

Termination of vase life for cut flowers is characterized by wilting associated with an imbalance developing between water uptake through xylem conduits in stems and water loss through stomata and other structures on leaves and other organs. To

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Chengyan Yue and Charles Hall

Consumers typically purchase cut flowers either for their own enjoyment or to use them as gifts. Unlike many edible horticultural crops whose quality attributes can be quantified (e.g., milligrams of fiber or sugar in an apple or 1 pound of celery

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David G. Tork, Neil O. Anderson, Donald L. Wyse, and Kevin J. Betts

the variation available for ornamental breeding, including for cut flower uses ( Cullis, 2011 ; Diederichsen and Richards, 2003 ; Fu, 2019 ). Initial surveys of Linum have identified L. austriacum, L. lewisii Pursh, and L. perenne as the top

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Erin M.R. Clark, John M. Dole, Alicain S. Carlson, Erin P. Moody, Ingram F. McCall, Frankie L. Fanelli, and William C. Fonteno

Each year a wide variety of new cultivars and species are evaluated in the National Cut Flower Trial Programs administered by North Carolina State University and the Association of Specialty Cut Flower Growers. These new cultivars are tested at

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Abby Pace, Bruce L. Dunn, and Charles Fontanier

blue luminescent powder as an alternative material that could provide a different luminescent color for use by the floral industry. Material and Methods Standard carnation ( Dianthus caryophyllus L.) cut flowers were received in a cooler set at 3

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Crofton Sloan and Susan S. Harkness

Roses are one of the three main flower crops produced and distributed worldwide, and the large majority of roses purchased in the United States are produced in South America ( Armitage, 2000 ). In 2006, the United States imported cut flowers valued

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R. Crofton Sloan and Susan S. Harkness

Thirteen single-stem and 16 branching sunflower (Helianthus annuus) cultivars were evaluated in field trials at the North Mississippi Research and Extension Center in Verona for cut flower production. The objective of this study was to assess the production potential of field-grown, pollen-free sunflowers in the Mississippi environment. The stem length, stem diameter, and bloom diameter of the sunflower cultivars were assessed over six planting dates during the summer growing season to determine cultivar market potential. All the single-stem cultivars produced stem diameters greater than 1.4 cm and were too large for general florist usage. The stems and flowers of the branching cultivars were smaller than the single-stem cultivars, and were a better size for many floral arrangements. The yield of stems from the branching cultivars ranged from three to 13 stems per plant over six planting dates. In the branching group, the dark-flowered cultivars produced the greatest number and the longest stems in the trial. Yellow/gold-flowered branching sunflowers in this trial did not produce as many stems and the stem lengths were shorter compared to the dark-flowered sunflowers.

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Samantha R. Nobes, Karen L. Panter, and Randa Jabbour

The production of specialty cut flowers is an opportunity to add valuable products to Wyoming growers and their local economy. The specialty cut flower market is growing in the United States as more cut flowers are being produced regionally for

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Cristian E. Loyola, John M. Dole, and Rebecca Dunning

Cut flower production in the United States and Canada has resurged in recent years. A survey conducted by Granitz (2014) found that 67% of the cut flower producers in North Carolina experienced an increase in demand for cut flowers, especially