‘Tift 15’ (PP25,517), ‘Tift 26’ (PP25,513),‘Tift 114’, ‘Tift 118’ (PP25,516), and ‘Tift 125’ are trispecific ornamental Pennisetum hybrids approved for release by the University of Georgia College of Agricultural and Environmental Sciences in 2012. They were selected from crosses between Pennisetum purpureum Schumach, Pennisetum squamulatum Fresen, and Pennisetum glaucum (L.) R. Br. These trispecific hybrids are both pollen and seed sterile, although a few inflorescences are produced in the greenhouse when daylengths become less than 11 h. However, no pollen is dehisced from shriveled anthers and no seed has been observed on inflorescences. ‘Tift 15’ and ‘Tift 26’ were evaluated in three environments in Georgia: Tifton (coastal plain), Griffin (Piedmont), and Blairsville (mountain) from 2006 to 2011, but only the 2009, 2010, and 2011 data are reported. ‘Tift 114’, ‘Tift 118’, and ‘Tift 125’ were evaluated in two environments in Georgia: Tifton (coastal plain) and Blairsville (mountain) from 2006 to 2013, but only the 2009, 2010, 2011, 2012, and 2013 data are reported. All tests were planted in a randomized complete block design with six, four, and three single plant replications at Tifton, Griffin, and Blairsville, respectively. Each test included a number of other experimental hybrids. Plants in all tests were spaced on 1.8-m centers. Genotypes were evaluated for plant height, plant canopy diameter, leaf length and width, and culm-leaf angle and rated for plant color, and helminthosporium leaf spot. All data in the tables are from plants established as single stem propagules in mid-May and rated in September or October, except the 2010 and 2011 data at Tifton are from plants that overwintered from the 2009 planting. Mature leaf color was rated according to the Royal Horticultural Society color index, 5th edition (RHS, 2007). These plants will not produce seed heads when daylength is greater than 11 h or where temperatures reach freezing (0 °C) or below. Tift 114, Tift 118, and Tift 125 are vegetatively propagated cultivars that are perennial in U.S. Department of Agriculture (USDA) hardiness zones 8b to 10. ‘Tift 15’ and ‘Tift 26’ are perennial up to USDA hardiness zone 8a. However, they can be grown as vigorous annuals in more northern zones. Data for each variable were statistically analyzed by analyses of variance. Least significance differences (lsd) were used for mean separation.
Hanna, W.W., Baltensperger, D.D. & Seetharam, A. 2004 Pearl millet and other millets, p. 537–560. In: L.E. Moser, B.L. Burson, and L.E. Sollenberger (eds.). Warm-season (C4) grasses. Agron. Monogr. 45. ASA, CSSA, and SSSA, Madison, WI
Hanna, W.W., Braman, S.K. & Schwartz, B.M. 2015 Registration of ‘Tift 10’, ‘Tift 11’, and ‘Tift 40’ trispecific ornamental Pennisetum J. Plant Regist 10 1 4
Royal Horticultural Society (RHS) 2007 RHS colour charts. 5th ed. Royal Hort. Soc., London, UK