Red Tiger Canna Cultivar Breeding for Scarlets and Striated Foliage
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Solution Overview
Problem
There is a need for new cultivars of Canna x generalis with unique flower colors combined with yellow striated foliage, as existing cultivars lack the desired combination of compact growth habit and specific color patterns.
Innovation Solution
The development of 'Red Tiger', a new cultivar of Canna x generalis, which exhibits bright scarlet flowers, striated foliage with green and yellow alternating striations, and green petioles with a yellow margin, achieved through a breeding program in Bangkok, Thailand, using asexual reproduction by rhizome division.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing cultivars are used, then growth habit is maintained, but unique flower color combination with yellow striated foliage is not achieved
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific color parameters - bright scarlet flower color combined with yellow striated foliage. The inventor controlled the genetic parameters through controlled crosses and selected plants exhibiting the desired color combination, transforming the general Canna characteristics into the specific 'Red Tiger' cultivar with its distinctive scarlet flowers and yellow-green variegated leaves.
Solution Approach 2:
The patent creates a composite genetic makeup by crossing two parent plants with different color characteristics. The female parent contributed orange flowers while the male parent contributed dull red flowers, resulting in an F1 generation that exhibited bright scarlet flowers. This composite breeding approach combined the color genes from both parents to achieve the unique scarlet coloration combined with yellow striated foliage.
2Length of stationary object
If plant height is increased, then flower size may increase, but compact growth habit is lost
Solution Approach 1:
The patent applies local quality by maintaining a compact growth habit specifically in the upper portion of the plant where the inflorescence develops. The cultivar exhibits a compact overall structure with the flower buds concentrated in a limited spatial area, allowing for bright scarlet flowers without requiring excessive plant height. This localized concentration of reproductive structures enables the compact growth habit to be preserved while still producing vibrant, sizable flowers.
3Illumination intensity
If flower color is intensified, then visual appeal increases, but foliage color variation may be reduced
Solution Approach 1:
The patent creates a composite color expression where the flower color and foliage color work together in harmony. The bright scarlet flowers are combined with yellow and green striated foliage, creating a multi-color composite appearance. This composite color strategy allows the flowers to be intensely colored while the foliage provides complementary yellow-green variegation, enhancing overall visual appeal rather than compromising one aspect for the other.
Data Source
AI summary
A new cultivar of Canna plant named ‘Red Tiger’ that is characterized by its compact and mid-sized plant habit, its flowers that are bright scarlet in color, its striated (variegated) foliage with alternating striations of green and yellow and a thin yellow margin, its petioles that are green with a yellow margin with the apex of the petiole variable striped, and inflorescences with 12 to 20 flower buds and typically with 3 to 4 flowers that are open at one time.