Compact Floribunda Rosa Plant Breeding for Disease Resistance
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Solution Overview
Problem
Current commercial rose cultivars lack uniform and abundant red-purple flowers, compact yet vigorous growth, and exceptional disease resistance, which are desired qualities in a new rose variety.
Innovation Solution
A new rose variety, 'Poulpal073', was developed through controlled crossing of unnamed seedling parents, exhibiting red-purple flowers, compact growth, and enhanced disease resistance, achieved through asexual reproduction and propagation in controlled environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional commercial rose cultivars are used, then general availability is maintained, but uniform and abundant red-purple flowers, compact vigorous growth, and exceptional disease resistance are not achieved
Solution Approach 1:
The patent applies parameter changes by selectively breeding for specific genetic traits that control flower color (red-purple pigmentation), growth habit (compact size), and disease resistance. The controlled crossing between selected parent plants combines specific genetic parameters to achieve the desired phenotype combination that does not exist in commercial cultivars.
2Length of stationary object
If rose plants are bred for compact growth, then space efficiency improves, but vigorous growth and abundant flowering may be compromised
Solution Approach 1:
The patent applies local quality by creating a plant with differentiated growth characteristics - compact overall height (50 cm) while maintaining vigorous local growth in the flowering zones. The plant exhibits concentrated flowering activity in a compact form, achieving high flower abundance within a reduced spatial footprint through selective breeding of growth pattern genes.
3Ease of manufacture
If conventional propagation methods are used, then ease of reproduction is maintained, but true-to-type characteristic transmission may not be guaranteed
Solution Approach 1:
The patent applies self-service through asexual propagation by rooted cuttings, where the plant propagates itself without requiring complex external intervention. This method ensures that the genetic characteristics are automatically transmitted true-to-type from parent to offspring, maintaining trait consistency while remaining relatively simple to perform in nursery settings.
Data Source
AI summary
A new garden rose plant of the Compact Floribunda class which has abundant, red-purple flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.