Poulyc004

Rose

Variety Description

Variety used for comparison: 'Golden Showers'

Summary: 'Poulyc004' has smaller, lighter green leaves, shorter terminal leaflets and smaller flower diameter with smaller petals than 'Golden Showers'. 'Poulyc004' has darker yellow flowers than 'Golden Showers'. Hairiness of the upper half of the style is absent for 'Poulyc004' while it is dense for 'Golden Showers'.

Description:

'Poulyc004' is a climbing/rambling rose variety. The young shoots have very weak, red anthocyanin colouration. The stems have a sparse to average number of short prickles which are yellow with a red base and concave to flat in shape. The leaves are light green and have moderate glossiness on the upper side. There are five to seven leaflets per leaf. The terminal leaflet has a serrated margin and obtuse shaped base. The texture of the terminal leaflet is thin and flexible.

'Poulyc004' has a medium number of flowers per flowering shoot. The flower pedicel has no hairs. The flower bud is pointed in shape when viewed in longitudinal section. The colour of the flower bud (¼ open) is yellow orange on the inner side and lighter yellow orange on the outer side. The sepals have absent to medium sepal extensions.

The flower type for 'Poulyc004' is double (20-29 petals per flower). The shape of the fully opened flower when viewed from above is irregularly rounded. When viewed from the side, the upper part is concave to flattened convex and the lower part is flat. The fully opened flower is yellow orange fading to yellow as it matures. The petals have a no petal spots at the base on both the inner and outer sides. The petal margins have medium to strong reflexing and weak undulation. The filaments of the outer stamens are yellow. The style is light green and medium in length. There is no pubescence on the upper half of the style. The stigma is positioned at the same level as the anthers. The receptacle is very small and pitcher shaped with no prickles on the outer surface. 'Poulyc004' has a medium strength fragrance.

Origin & Breeding History: 'Poulyc004' originated from a cross conducted in the summer of 1991 between an unnamed seedling and variety 'Poulurt'. The resulting seeds were planted in December of 1991 and germinated during the winter and early spring. The cross and selection took place in the greenhouses of Poulsen Roser A/S located in Fredensborg, Denmark. 'Poulyc004' was selected in the spring of 1992 based on the objective of this hybridization which was to create a new and distinct rose variety for garden and patio use. Selection criteria included uniform and abundant yellow flowers appearing on the plant evenly from the lower to upper branches, vigorous but compact and low growth when propagated both as a budded rose and on its own roots, disease resistance, suitability for container culture and climbing plant growth habit.

Tests & Trials: The test and trial for 'Poulyc004' was conducted during the summer of 2005 at BioFlora Inc. in St. Thomas, Ontario. There were 8 plants per variety. Bare-root roses were field planted in July of 2004. The rose plants were spaced 60 cm apart with a 90 cm row spacing. All colour characteristics were determined using the 2001 Royal Horticultural Society (RHS) colour chart and measured characteristics were based on ten measurements.

Comparison tables for 'Poulyc004' with reference variety 'Golden Showers'

Leaf length (cm)

Leaf width (cm)

Terminal leaflet length (cm)

Flower diameter (cm)

Overall flower colour (RHS)