|Trade name:||Patina Delft|
|Botanical Name:||Ageratum houstonianum|
Syngenta Crop Protection AG
Monica Sanders, Syngenta Seeds B.V., Enkhuizen, Netherlands
|Agent in Canada:||
38723 Fingal Line
St. Thomas, Ontario
|Grant of Rights Date:||2009-09-23|
|Date rights surrendered:||2012-10-12|
Variety used for comparison: 'Agetis' (Artist Alto Blue)
Summary: Anthocyanin colouration of the stems of 'Agadeft' is absent whereas it is moderate for those of 'Agetis'. 'Agadeft' has narrower leaves and shorter petioles than 'Agetis'. 'Agadeft' has fewer flowers per inflorescence than 'Agetis'. The colour of the unopened disc of 'Agadeft' is white while that of 'Agetis' is blue violet. The colour of the disc after dehiscence of 'Agadeft' is violet blue fading to light violet blue as it ages while that of 'Agetis' is blue violet changing to violet blue as it ages.
PLANT: annual type, bushy to upright growth habit, dense branching
STEM: light to medium green, no anthocyanin colouration, dense pubescence, medium to thick
LEAF: simple type
LEAF BLADE: ovate shape, apex ranging from acute to obtuse, cordate base, crenate margin, weak blistering, moderate pubescence on upper side, sparse to moderate pubescence on lower side, light to medium green on upper side, no variegation, petiole present
INFLORESCENCE: average of 9.0 flowers per inflorescence
PEDICEL: no anthocyanin colouration
DISC (CAPITULUM): white
DISC FLORETS: violet blue fading to light violet blue as they age
Origin & Breeding History: 'Agadeft' was bred and developed by the breeder, M. Sanders, an employee of Syngenta Seeds B.V., Enkhuizen, The Netherlands. It originated from a controlled pollination made in October 2002 between the female parent designated 'W0052-7' and the male parent designated 'X0012-3'. 'Agadeft' was selected as a single seedling in August 2003 based on its compact plant habit, branching, flower size and flower colour.
Tests & Trials: Trials for 'Agadeft' were conducted in a polyhouse during the spring of 2008 at BioFlora Inc. in St. Thomas, Ontario. The trial included a total of 15 plants per variety. Rooted cuttings were transplanted into 15 cm pots on April 13, 2008. Measured characteristics were based on measurements taken from 10 plants or parts of plants on June 11, 2008. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.
Comparison tables for 'Agadeft' with reference variety 'Agetis'
Leaf blade width (cm)
Petiole length (mm)
Number of flowers per inflorescence
Colour of disc (RHS)
|disc (capitulum) before florets open||lighter than 155C||83C|
|opened floret disc||94C||N88C|
|aged floret disc||bluer than 93D||92A|
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