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Calvin Chong* and Adam Dale

Terminal stem cuttings of seven woody nursery species [boxwood (Buxus sempervirens L. `Green Mountain'), coralberry (Symphoricarpus × chenaultii Rehd. `Hancock'), lilac (Syringa velutina Kom.), Peegee hydrangea (Hydrangea paniculata Siebold. `Grandiflora'), purple-leaf sandcherry (Prunus × cistena N.E. Hansen), Rose-of-Sharon (Hibiscus syriacus L. `Lucy'), and winged spindle-tree (Euonymus alata Thunb.) Siebold. `Compacta')] were rooted under outdoor lath (50% shade) and mist in leached rooting media consisting of 0, 20, 40, 60 and 80% by volume of 2-year-old grape pomace amended in binary mixtures with sphagnum peat, perlite or composted bark. Rooting performance, expressed in terms of percent rooting, mean root number per rooted cutting, and length of the longest root per cutting, was regressed on level of pomace. When there were differences due to amendments, most species rooted better with perlite than with bark and peat, to a lesser degree, due in part to more favourable air-filled porosities with perlite (33% to 42%) than with bark (29% to 37%) or peat (24% to 35%). With boxwood, increasing level of pomace up to ≈60%, especially when mixed with perlite or peat, resulted in substantial increases in rooting percentage, root number and length. All three rooting parameters of winged spindle-tree decreased linearly with increasing level of pomace with perlite or bark. The effect of pomace level on other species varied between these extremes with little or no negative effect on rooting.

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Xingbo Wu and Lisa W. Alexander

, whereas ssp. serrata grows in high-elevation areas and is often referred to as mountain hydrangea. To date, confusion that still persists needs to be eliminated with a comprehensive genetic study. In the present study, the phylogenetic tree based on our

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Sandra M. Reed and Timothy A. Rinehart

m. Hydrangea macrophylla ssp. serrata , which is cultivated primarily as a garden plant, is found in Japan and northern Korea and is referred to as mountain hydrangea. As the common name indicates, H. macrophylla ssp. serrata is usually found

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Keri D. Jones, Sandra M. Reed and Timothy A. Rinehart

Easter and Mother's Day sales ( Bailey, 1989 ). Although only H. macrophylla ssp. macrophylla is used in the florist's trade, both H. macrophylla ssp. macrophylla (bigleaf hydrangea) and H. macrophylla ssp. serrata (mountain hydrangea) are

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Stephen Patrick Greer and Timothy A. Rinehart

genomic information, genetic variations created by chemical mutagenesis are exempt from regulatory approval requirements for transgenic crops. Hydrangea cultivars are among the top-selling deciduous flowering shrubs in the United States; traditional

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Susmitha Nambuthiri, Ethan Hagen, Amy Fulcher and Robert Geneve

production of several evergreen and deciduous shrubs in the Northern United States ( Pershey, 2014 ) and Hydrangea macrophylla ‘Fasan’ and Gardenia jasminoides ‘Radicans’ in Southern United States locations ( O’Meara et al., 2013 ). User-defined set

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Jeb S. Fields, James S. Owen Jr. and Holly L. Scoggins

properties could continue to produce a quality, salable Hydrangea arborescens crop grown at Ψ, which was previously considered unfavorable for container production. Furthermore, we wanted to determine how suboptimal Ψ influences crop physiology and

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Sadiye Hayta, Mark A. Smedley, Jinhong Li, Wendy A. Harwood and Philip M. Gilmartin

such as Hydrangea, Sugarcane, Strawberry, and Dendrocalamus strictus ( Gallo-Meagher et al., 2000 ; Haddadi et al., 2013 ; Lata et al., 2013 ; Ledbetter and Preece, 2004 ). Table 3. Effect of different concentrations of thidiazuron (TDZ), 1

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Rajeev Arora and Lisa J. Rowland

labrusca L.) had higher midwinter-hardiness than ‘Cabernet Sauvignon’ ( Vitis vinifera L.), whereas the former deacclimated more rapidly ( Wolf and Cook, 1992 ). Our recent work with Hydrangea species also indicates that a relatively hardier species, H

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

amplification reaction, which included Advantage2 Taq DNA Polymerase (Clontech, Mountain View, CA) according to previously published protocols ( Rinehart et al., 2006 ). Fluorescence-labeled PCR fragments were visualized by automated capillary gel