PTDB141301

Campanula

Variety Description

Varieties used for comparison: 'PKMP05' and 'PKMP10'

Summary: The plants of 'PTDB141301' are narrow while those of 'PKMP05' are of medium width. The leaf blade apex of 'PTDB141301' is acute while that of 'PKMP10' is acuminate. The leaf blade margin of 'PTDB141301' has very strong undulation while that of 'PKMP05' has weak undulation. The corolla lobe shape of 'PTDB141301' is ovate while that of 'PKMP10' is elliptic. In cross-section, the corolla lobe of 'PTDB141301' is weakly reflexing at the mid-point while that of 'PKMP05' is strongly reflexing. The secondary colour of the inner side of the corolla lobe of 'PTDB141301' is blue violet whereas that of 'PKMP10' is darker blue violet.

Description:

PLANT: spreading growth habit, extremely short to very short, narrow, dense to very dense

STEM: medium green

LEAF BLADE: very short to short, narrow, very low to low length to width ratio, acute apex, cordate base, position of broadest part moderately towards base, no variegation, many very deep indentations of margin, very strong undulation of margin
LEAF BLADE (UPPER SIDE): medium green, weak rugosity, weak glossiness, sparse pubescence

FLOWER: natural attitude is slightly outwards, campanulate type
CALYX: no petaloid lobes, angle of lobes is moderately spreading
COROLLA: very few whorls, very short to short, very small to small diameter, very short fused part, medium to long fused part compared to total length of corolla, absent or very small diameter of fused part, fused part very weakly diverging in longitudinal section
COROLLA LOBE: ovate, very short to medium length, very narrow, mid-point in cross section is weakly reflexing, obtuse apex
COROLLA LOBE (INNER SIDE): blue violet (RHS N87A), secondary colour lighter blue violet (RHS N88D) at base, no spots, no pubescence
COROLLA LOBE (OUTER SIDE): blue violet (RHS N87B), no secondary colour, no spots
POLLEN: whitish

Origin & Breeding History: 'PTDB141301' originated from a controlled cross conducted by the breeder, Peter van de Pol, in Twello, Netherlands in August 2012. The cross occurred between two proprietary breeding selections, 'PTDB-1200201S-PT' as the female parent variety and 'PTDB-13001103S' as the male parent variety. From the resulting progeny, 'PTDB141301' was selected as a unique seedling in July 2013 in Twello for its compact plant growth habit, abundant flowering, shelf life and outdoor performance. Asexual reproduction of 'PTDB141301' was initially conducted by cuttings in November 2013 in Twello, Netherlands.

Tests & Trials: The detailed description of 'PTDB141301' is based on the UPOV report of Technical Examination, application number 2015/2375, purchased from the Community Plant Variety Office in Angers, France. The trial was conducted by the National Institute of Agricultural Botany in Cambridge, United Kingdom in 2016. Colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison table for 'PTDB141301' with reference varieties 'PKMP05' and 'PKMP10'

Secondary colour of corolla lobe (RHS)

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Campanula: 'PTDB141301'

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Campanula: 'PTDB141301'