Intasunnipabu

Nierembergia

Variety Description

Varieties used for comparison: 'Sunniparisobu' (Summer Splash Patio Light Blue) and 'Sunnicobu' (Summer Splash Compact Blue)

Summary: The plant growth habit of 'Intasunnipabu' is upright bushy whereas it is upright for 'Sunniparisobu' and semi-upright to trailing for 'Sunnicobu'. 'Intasunnipabu' has shorter plants than 'Sunniparisobu' and taller plants than 'Sunnicobu'. The leaf blades of 'Intasunnipabu' are longer than those of 'Sunnicobu'. 'Intasunnipabu' has a shorter calyx than the reference varieties. Reflexing of the flower margin is weak for 'Intasunnipabu' while it is moderate for 'Sunniparisobu' and absent for 'Sunnicobu'. 'Intasunnipabu' has a larger flower diameter than either reference variety. The inner side of the corolla of 'Intasunnipabu' is light blue violet with violet blue base whereas for 'Sunniparisobu' it is light blue violet to violet with darker blue violet base and for 'Sunnicobu' it is pinkish light blue violet with darker violet blue base.

Description:

PLANT: upright bushy growth habit, medium width, dense branching
STEM: medium green, no anthocyanin, thin

LEAF BLADE: ranges between elliptic and linear shape, obtuse apex, medium green on upper and lower side, no petiole

PEDICEL: absent or very short
SEPAL: narrow acute apex
FLOWER: cupped funnel form, near-white (petal) tube, moderate degree of lobing, weakly reflexed margin, inner side is light violet blue (RHS 91C with RHS 85C tones) with lighter violet blue (lighter than RHS 91D) margin and violet blue (RHS 91A) at the base, eye zone is medium sized and yellow (RHS 8A)
ANTHER: yellow

Origin & Breeding History: 'Intasunnipabu' originated from a cross made in the summer of 2003 between two proprietary Nierembergia sp. selections; 'N185' as the female parent and '2N33' as the male parent. The cross was conducted at the Omi R&D Center of Suntory Flowers Ltd. in Shiga, Japan. The resulting seedlings were grown in pots in a glasshouse for evaluation. In 2004, several seedlings were selected based on their plant shape and flower colour and then propagated vegetatively to be grown in pots. A trial was carried out in 2005 at Higachiomi-shi in Shiga, Japan to examine the botanical characteristics of these selections in comparison to similar varieties. In October 2005, it was concluded that one of the Nierembergia plants was distinguishable from all other varieties and also found to be uniform and stable in its characteristics. It was named 'Intasunnipabu'.

Tests & Trials: Trials for 'Intasunnipabu' were conducted in a polyhouse during the summer of 2009 at BioFlora Inc. in St. Thomas, Ontario. There were 15 plants per variety. All plants were grown from rooted liners and transplanted into 15 cm pots on May 5, 2009. Observations and measurements were taken from 10 plants or parts of plants of each variety on June 10, 2009. All colour determinations were made using the 2001 Royal Horticultural Society (RHS) Colour Charts.

Comparison tables for 'Intasunnipabu' with reference varieties 'Sunniparisobu' and 'Sunnicobu'

Plant height (cm)

Leaf blade length (cm)

Calyx length (cm)

Flower diameter (cm)

Flower colour on inner side(RHS)

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Nierembergia: 'Intasunnipabu' (left) with reference varieties 'Sunniparisobu' (centre) and 'Sunnicobu' (right)

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Nierembergia: 'Intasunnipabu' (left) with reference varieties 'Sunniparisobu' (centre) and 'Sunnicobu' (right)