Hypericum Kolmiglow Cultivar Breeding for Rust Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for new Hypericum plants with strong stems, dark-colored leaves, and high fruit density, as existing cultivars lack these desirable traits consistently across varying environmental conditions and cultural practices.
Innovation Solution
The development of a new Hypericum cultivar, 'Kolmiglow', resulting from a planned breeding program, which exhibits upright and spreading growth, dark purple stems, small dark green leaves with dark purple lower surfaces, glossy dark red fruits, and resistance to Puccinia rust, through asexual reproduction by vegetative cuttings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing Hypericum cultivars are used, then basic growth is maintained, but desirable traits such as strong stems, dark-colored leaves, and high fruit density are not consistently achieved
Solution Approach 1:
The patent applies preliminary action by conducting a systematic breeding program that pre-selects and combines desirable traits (strong stems, dark-colored leaves, high fruit density) into a new cultivar 'Kolmiglow' before field deployment. This preliminary genetic selection ensures that the cultivar possesses stable, true-to-type characteristics that will consistently express across varying environmental conditions, rather than attempting to achieve these traits through ongoing management of existing cultivars.
2Reliability
If new traits are introduced through breeding, then stem color, fruit density, and disease resistance are improved, but genetic stability and true-to-type reproduction must be maintained
Solution Approach 1:
The patent applies copying by using vegetative propagation (cuttings) to reproduce the new cultivar 'Kolmiglow'. This asexual reproduction method creates genetically identical copies of the selected plant, ensuring true-to-type reproduction and genetic stability. The copying process preserves all the improved traits (dark purple stems, dark green leaves with purple undersides, high fruit density, Puccinia rust resistance) without the genetic variation that would occur with sexual reproduction, thus maintaining reliability while avoiding the need for complex ongoing breeding programs.
3Reliability
If dark-colored leaves and stems are selected for, then aesthetic value and disease resistance are enhanced, but photosynthetic efficiency may be reduced
Solution Approach 1:
The patent applies local quality by differentiating the color characteristics of different plant parts. The cultivar 'Kolmiglow' features dark purple stems and dark green leaves with purple undersides, but the upper leaf surfaces maintain a green coloration optimized for photosynthesis. This local differentiation allows the plant to exhibit dark coloring in stems and leaf undersides (providing aesthetic value and disease resistance) while maintaining green upper surfaces that efficiently capture light energy for photosynthesis, thus resolving the contradiction between aesthetic/disease resistance traits and photosynthetic efficiency.
Data Source
AI summary
A new and distinct cultivar of Hypericum plant named ‘Kolmiglow’, characterized by its upright and outwardly spreading plant habit; moderately vigorous growth habit; dark purple-colored developing stems; relatively small leaves that dark green in color with dark purple-colored lower surfaces; freely flowering habit; high fruit density; and glossy dark red-colored fruits.