KOIBID1510

Bidens

Variety Description

Variety used for comparison: 'Beedance Painted Red'

Summary: The plants of 'KOIBID1510' have an upright bushy growth habit whereas the plants of 'Beedance Painted Red' have a spreading growth habit. The shoots of 'KOIBID1510' are shorter than those of 'Beedance Painted Red'. The shoots of 'KOIBID1510' have dense pubescence whereas the shoots of 'Beedance Painted Red' have very sparse pubescence. The leaf blade of 'KOIBID1510' is shorter than that of 'Beedance Painted Red'. The leaf blade margin of 'KOIBID1510' has medium depth margin incisions while the margin of 'Beedance Painted Red' has deep incisions.

Description:

PLANT: vegetatively propagated, annual, upright bushy growth habit, many branches
SHOOT: light green and red brown, medium to strong intensity of anthocyanin colouration, dense pubescence

LEAF: opposite arrangement, trifoliate type
LEAF BLADE: ovate to rhomboidal, acute apex, attenuate to wedge-shaped base, serrate margin with medium depth incisions, absent to very sparse pubescence on upper and lower sides, no glaucosity on upper side, medium green on upper side, light green on lower side, no variegation
PETIOLE: present

PEDICEL: absent to very weak intensity of anthocyanin colouration, dense pubescence
FLOWERING: begins early, almost continous and for a long period
INFLORESCENCE: head type
FLOWER: both axillary and terminal position, erect attitude
RAY FLORET: overlapping arrangement at base, medium number, elliptic, dentate apex, weak recurvature of tip, entire margin, weak undulation of margin
RAY FLORET (INNER SIDE): no pubescence, when fully opened brown red (RHS 179A) with dark brown purple tones (RHS 185A) and yellow orange (RHS 14A) at base, when aged orange brown (RHS 171B-C) with yellow (RHS 9A) at base
RAY FLORET (OUTER SIDE): very sparse pubescence, brown red (RHS 181A-B) with yellow orange (RHS 14B) at base
DISC: present

Origin & Breeding History: 'KOIBID1510' was bred and developed by the breeder, Koichiro Nishikawa, in Nagi-cho, Katsuta-gun, Okayama-ken, Japan. It originated from a controlled self-pollinated cross of the Bidens ferulifolia variety 'k-1105' conducted in January 2011, in Okayama-ken, Japan. The new variety 'KOIBID1510' was selected as a single plant in May 2011 for its growth habit, branching characteristics, length of flowering period, peduncle strength and flower colour. 'KOIBID1510' was first propagated asexually by tip cuttings in June 2011, in Okayama-ken, Japan.

Tests & Trials: The comparative trial for 'KOIBID1510' was conducted in a polyhouse during the summer of 2018 at BioFlora Inc. in St. Thomas, Ontario. It included a total of 20 plants each of the candidate and reference variety. Rooted cuttings were transplanted into 15 cm pots on April 18, 2018. The observations and measurements were taken from 10 plants, or parts of plants, of each variety on June 7, 2018. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'KOIBID1510' with reference variety 'Beedance Painted Red'

Shoot length (cm)

Leaf blade length (cm)

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Bidens: 'KOIBID1510' (left) with reference variety 'Beedance Painted Red' (right)

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Bidens: 'KOIBID1510' (left) with reference variety 'Beedance Painted Red' (right)

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Bidens: 'KOIBID1510' (left) with reference variety 'Beedance Painted Red' (right)