Hibiscus Cherry Choco Latte Hybrid Breeding
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Solution Overview
Problem
There is a lack of a winter-hardy, herbaceous hibiscus plant with unique traits such as compact habit, deeply dissected foliage, and strongly contrasting flower petals that can withstand harsh weather conditions, which are not found in existing hardy herbaceous hibiscus varieties.
Innovation Solution
The development of the Hibiscus 'Cherry Choco Latte' hybrid, which combines traits from Hibiscus 'Cherry Cheesecake' and an unnamed hybrid, resulting in a compact, winter-hardy plant with dark green foliage and unique flower characteristics, including deep magenta veining and a large, deep-red eye zone, achieved through asexual propagation using sterile shoot-tip tissue culture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing hardy herbaceous hibiscus varieties are used, then winter hardiness is achieved, but unique traits such as compact habit, deeply dissected foliage, and strongly contrasting flower petals are lacking
Solution Approach 1:
The patent combines traits from two different parent hibiscus varieties through controlled hybridization. The first parent contributes winter hardiness and basal branching habit, while the second parent contributes compact growth, deeply dissected foliage, and contrasting flower colors. This merging of parental traits produces offspring that exhibit both winter hardiness and the desired unique ornamental characteristics.
Solution Approach 2:
The invention achieves local quality by developing specific traits in particular parts of the plant. The foliage exhibits deep dissection with intricate leaf patterns, the flowers display strong color contrast between petals and veins, and the overall plant maintains a compact habit. These localized trait enhancements occur while maintaining winter hardiness throughout the entire plant.
2Stability of the object's composition
If asexual propagation using sterile shoot-tip tissue culture is used, then stable and true-to-type growth is achieved, but propagation complexity increases
Solution Approach 1:
The patent uses sterile shoot-tip tissue culture as an intermediary propagation method. This technique involves taking small shoot-tip explants, culturing them in controlled nutrient media under sterile conditions, and regenerating complete plants. This intermediary process ensures that the genetic composition remains stable and true-to-type, producing uniform plants that faithfully reproduce the hybrid's unique traits.
3Ease of manufacture
If flower petals have strong color contrast and deep magenta veining, then ornamental value is enhanced, but genetic stability becomes more difficult to maintain
Solution Approach 1:
The patent establishes genetic stability for the contrasting flower traits through preliminary hybridization and selection. The desired color contrast and deep magenta veining patterns are fixed in the hybrid's genome during the breeding process. Subsequent tissue culture propagation then maintains this genetically predetermined trait stability across multiple generations, preventing trait variation.
Data Source
AI summary
A new and distinct cultivar of winter-hardy, herbaceous, perennial, hybrid Hibiscus plant named Cherry Choco Latte’ comprising a compact slightly spreading habit of multiple, well-branched, basal stems having flowers over a long season with near white petals having sharply contrasting magenta veins and large deep red eye. The heavy substance petals have a fold on the leading edge and are slightly ruffled at the apex giving the flower the ability to withstand harsh winds and rains. The three to five-lobed, deeply-dissected foliage is mahogany colored when young or when exposed to high light intensity and becomes dark green with purple mahogany blushing when mature.