Hibiscus Mocha Moon Breeding Segmentation and Local Quality
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Solution Overview
Problem
There is a need for a hardy, herbaceous hibiscus cultivar with unique foliage and flower characteristics that differ from existing varieties, offering a compact habit, prolonged flowering season, and enhanced disease and pest resistance.
Innovation Solution
The development of Hibiscus 'Mocha Moon', a hybrid resulting from crossing Hibiscus 'Crown Jewels' and 'Midnight Marvel', characterized by greyed-purple foliage, larger flowers with a light pink to white background and scarlet-red lustrous eye, and deep bronze-green, tri-lobed foliage, achieved through stem tip cuttings and sterile tissue culture propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If Hibiscus 'Crown Jewels' is used as female parent, then flower color is improved (light pink to white background), but habit becomes spreading and less compact
Solution Approach 1:
The patent segments the parental traits by using 'Crown Jewels' specifically for contributing flower color genetics while using 'Midnight Marvel' for contributing compact habit genetics. The hybrid combines these segmented traits to achieve both desirable flower color and compact form, resolving the contradiction between flower color inheritance and habit inheritance.
Solution Approach 2:
The patent applies local quality by assigning specific functional characteristics to different parts of the plant through selective breeding. The flower petals inherit the light pink to white background coloration from 'Crown Jewels', while the overall compact mound habit is inherited from 'Midnight Marvel'. This localized trait assignment resolves the contradiction between flower color and habit.
2Shape
If Hibiscus 'Midnight Marvel' is used as male parent, then habit is improved (compact mound), but flower color is worsened (scarlet red with no white to light pink)
Solution Approach 1:
The patent segments the parental contributions by using 'Midnight Marvel' specifically for providing compact habit genetics while using 'Crown Jewels' for providing desirable flower color genetics. This segmentation allows the hybrid to achieve both compact form and light pink to white flower background, resolving the contradiction between habit and flower color inheritance.
Solution Approach 2:
The patent applies local quality by assigning the compact mound habit to the overall plant structure from 'Midnight Marvel' while assigning the light pink to white petal background to the flower coloration from 'Crown Jewels'. This localized trait inheritance resolves the contradiction between habit and flower color.
3Productivity
If Hibiscus plants are propagated by stem tip cuttings, then propagation speed is improved, but genetic stability may be compromised
Solution Approach 1:
The patent employs feedback by systematically testing and selecting seedlings that demonstrate both rapid growth potential and genetic stability. The feedback loop involves observing multiple generations of asexual reproduction to ensure traits remain true-to-type, thereby resolving the contradiction between propagation speed and genetic stability.
Solution Approach 2:
The patent uses copying through asexual propagation methods (stem tip cuttings and sterile tissue culture) to create genetically identical copies of the selected seedling. This copying process, when combined with selective breeding, maintains genetic stability while enabling rapid propagation of the desired traits.
4Stability of the object's composition
If Hibiscus plants are propagated by sterile tissue culture, then genetic stability is improved, but propagation time is increased
Solution Approach 1:
The patent segments the propagation process into two complementary methods: sterile tissue culture for maintaining genetic stability of selected seedlings, and stem tip cuttings for faster propagation of established true-to-type plants. This segmentation allows the program to achieve both genetic stability and reduced propagation time by using each method for its optimal application.
Solution Approach 2:
The patent applies dynamics by adapting the propagation method based on the plant's developmental stage and trait expression. Sterile tissue culture is used initially to establish genetically stable lines from seedlings, while stem tip cuttings are used later once true-to-type characteristics are confirmed, thereby optimizing both genetic stability and propagation efficiency.
Data Source
AI summary
A new and distinct cultivar of hardy herbaceous perennial Hibiscus hybrid plant named ‘Mocha Moon’ comprising an upright branched stems, numerous, outward-facing, near light pink to white flowers over a prolonged season having a lustrous scarlet-red eye and short radiating veins. The foliage is deep bronze-green, primarily tri-lobed.