'Maurine Twilight' and 'Maurine Daylight' - Heat-tolerant lisianthus with bi-colored flowers

摘要

Seedlings of most commercial cultivars of lisianthus [Eustoma grandifiorum (Raf.) Shinners; Gentianaceae Juss.] form rosettes when grown at or above 25 to 28 deg C (Harbaugh, 1995; Harbaugh et al., 1992; Ohkawa et al., 1991, 1994; Pergola, 1992). 'Maurine Blue' was released in 1995 as a blue flowering and heat-tolerant cultivar oflisianthus developed at the Univ. of Florida's GulfCoast Research and Education Center, Bradenton, Fla. (Harbaugh and Scott, 1996). In 1998, six other heat-tolerant cultivars with eitherpink, pink-lilac, white, light blue, or lilac flower colors but similar vegetative and flowering characteristics were released in the Maurine cultivar group (Harbaugh and Scott, 1998). 'Maurine Daylight' (Fig. 1, left) and 'Maurine Twilight' (Fig. 1, right) plants also are heat-tolerant with vegetative and flower characteristics that are similar to 'Maurine Blue', and provide bi-color flower selections (white with light violet-blue rim or white with dark violet-purple rim, respectively) to the Maurine cultivar-group.