Pansy ( Viola × wittrockiana ) is one of the most popular annual bedding plants in the United States due to its being frost tolerant and ability to provide color in winter in warm climates or late fall and early spring in colder climates
height or stem length of containerized greenhouse crops. Materials and methods On 25 Feb. 2009, a 51-cell tray of ‘Callie Deep Yellow’ calibrachoa and a 125-cell tray of ‘Delta Orange Blotch’ pansy were delivered from a commercial liner producer (C
, have been observed in some species ( Blanchard et al., 2007 ; Kim and van Iersel, 2008 ; Waterland et al., 2010 ). We observed leaf chlorosis on drought-stressed Tagetes patula (marigolds), Pelargonium × hortorum (seed geraniums), and pansies
A peloric form of the labellum or lip of Dendrobium appeared in a hybrid registered by D'Bush Nursery of Australia as Dendrobium D'Bush Pansy in 1988. Unlike the typical lip of Dendrobium, the lip of D'Bush Pansy is similar to the two lateral sepals, and the flat petals and sepals resemble those of the pansy, hence the name D'Bush Pansy. A few seedlings of D'Bush Pansy were obtained from Australia through Bangkok Flowers in 1989. D'Bush Pansy crossed to several Dendrobium plants with normal lip produced offspring with normal lip, indicating that pansy-lip is recessive to normal-lip. Three F1 offspring backcrossed to the pansy-lip parent produced 1:1 ratios, and one F2 progeny segregated into 3 normal-lip: 1 pansy-lip. Thus, pansylip is controlled by a single recessive gene pair.
( Vinca minor ), begonia ( Begonia × hybrida) , and pansy ( Viola × wittrockiana ) are considered to be highly sensitive to paclobutrazol ( Million et al. 1999 ). In one study, researchers reported 30% less growth when begonias were exposed to 5 μg·L −1
nitrogen concentration correlates positively to leaf chlorophyll content ( Evans, 1983 ; Loh et al., 2002 ). We hypothesized that increased fertilization can reduce the severity of ABA-induced chlorosis in pansy. Pansy was used as a model plant because
‘Forest Pansy’ in the Lower Midwest. This flowering tree was selected as representative of the flowering tree category because of its prominence in the geographic area being studied. It is important to recognize that we report results in per
( Warrington and Norton, 1991 ). Petunia grown under a higher DLI had more and larger flowers ( Kaczperski et al., 1991 ). In addition, an elevated DLI inhibited stem and peduncle extension growth in pansy ( Viola × wittrockiana Gams.) ( Niu et al., 2000
Two experiments were conducted with pansy (Viola ×wittrockiana Gams `Bingo Yello') to determine the relationship between foliar nitrogen (% of dry weight) (FN) and either sap nitrate concentration (SN) in petioles or SPAD readings of foliage. FN was highly correlated to SN throughout both experiments (r = 0.80 to 0.91). FN was poorly correlated to SPAD readings early in both experiments (r = 0.54 to 0.65), but more highly correlated later when visual symptoms of N deficiency were apparent (r = 0.84 to 0.90). SN determined with the Cardy sap nitrate meter was a reliable predictor of FN in pansy, while SPAD readings were only reliable after symptoms of N deficiency were visually evident. FN can be predicted with SN using the following equation: log(SN) = 0.47*FN + 1.6 [r 2 = 0.80, n = 132]. Growers and landscape professionals can use SN readings to predict FN levels in pansy, and thus rapidly and accurately diagnose the N status of their crop.
-specific morphological and physiological responses to long-term exposure of elevated CO 2 concentrations in controlled environments for petunia ( Petunia × hybrida ‘Dreams Midnight’) and pansy ( Viola × wittrockiana ‘Matrix Blue Blotch Improved’) to determine the