Guzmania Hybrid ROUCHE Breeding for Red Inflorescence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a greater variety of Guzmania cultivars with attractive ornamental features and additional hybrid cultivars that can be easily propagated by seed, as existing cultivars lack diversity and efficient seed propagation methods.
Innovation Solution
A new Guzmania hybrid cultivar 'ROUCHE' was developed through a controlled breeding program, combining the Guzmania lingulata and Guzmania wittmackii inbred lines to produce seeds and plants with unique, stable characteristics, including superior bract production and long-lasting red inflorescence, which can be propagated by sexual reproduction and asexual means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing Guzmania cultivars are used, then cultivation is straightforward, but variety and ornamental attractiveness are limited
Solution Approach 1:
The patent combines two distinct inbred lines (Guzmania lingulata and Guzmania wittmackii) through controlled crossing to create a hybrid cultivar that exhibits superior ornamental features including red inflorescence and enhanced bract production, thereby increasing variety without requiring entirely new species
2Stability of the object's composition
If traditional propagation methods are used, then existing cultivars can be maintained, but new hybrid cultivars with stable traits are difficult to produce
Solution Approach 1:
The patent employs preliminary inbreeding to create homozygous parental lines before hybridization, ensuring that the resulting F1 hybrid progeny will exhibit uniform and stable traits. This preliminary genetic preparation enables reliable trait consistency in the new cultivar
Solution Approach 2:
The patent changes the genetic parameters by crossing two different inbred lines with distinct genetic backgrounds, creating a hybrid that combines desirable traits from both parents while achieving phenotypic uniformity through controlled breeding
3Manufacturing precision
If inbred lines are crossed to produce hybrids, then genetic uniformity is achieved, but the breeding process becomes more complex
Solution Approach 1:
The patent segments the breeding process into distinct phases: creating inbred lines through repeated selfing, performing controlled crosses between specific inbred lines, and selecting uniform F1 progeny. This segmentation allows systematic achievement of genetic uniformity while managing complexity through structured procedures
Data Source
AI summary
A new and distinct Guzmania hybrid names ‘ROUCHE’ characterized by solid growth habit; funnel-form rosette plant, measuring about 50 cm in height (above the pot when flowering); numerous, green color foliage (measuring about 35 to 50 cm length and about 4 cm in width). Superior floral bract production; bracts are red in color (ranges from RHS 47B to 48A), compound inflorescence, measuring about 20 cm in height and about 25 cm in diameter; and long-lasting habit.