Compact Shrub Rose 'Poultc014' Breeding for Disease Resistance
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Solution Overview
Problem
Current commercial rose cultivars lack compact, vigorous growth with uniform and abundant deep yellow flowers, suitable for container nursery culture and with improved disease resistance.
Innovation Solution
A new rose variety, 'Poultc014', resulting from controlled crossing, exhibits compact growth, smaller but more abundant deep yellow flowers, and enhanced disease resistance, achieved through asexual reproduction and propagation methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional rose cultivars are used, then they may have larger flowers, but they lack compact growth and uniform deep yellow flowers
Solution Approach 1:
The patent applies parameter changes by creating a new rose cultivar with modified genetic parameters that result in compact growth habit combined with uniform deep yellow flowers. The controlled crossing between specific parent plants produced offspring with altered growth parameters and flower color parameters, achieving both compactness and uniform deep yellow coloring that neither parent possessed alone.
2Quantity of substance
If rose varieties with more flowers per stem are created, then flower abundance increases, but individual flower size may decrease
Solution Approach 1:
The patent resolves this contradiction through parameter changes in the hybridization process, producing a cultivar where the number of flowers per stem increased while individual flower size was maintained at an acceptable level. The controlled crossing altered the quantitative parameters of flower production without completely sacrificing individual flower dimensions.
3Length of stationary object
If compact growth is achieved through breeding, then suitability for container culture improves, but overall plant vigor may be reduced
Solution Approach 1:
The patent applies parameter changes by selectively breeding for compact height while maintaining vigor parameters. The resulting cultivar exhibits reduced height parameters suitable for container culture while preserving sufficient vigor for healthy growth and flowering, achieving a balance between size constraints and physiological strength.
4Reliability
If disease resistance is improved through hybridization, then plant health increases, but genetic complexity may increase
Solution Approach 1:
The patent applies parameter changes by introducing disease resistance parameters through controlled hybridization. The crossing between parent plants with different disease resistance profiles produced offspring with improved resistance parameters while managing genetic complexity through selective breeding strategies.
Data Source
AI summary
A new garden rose plant of the shrub class which has abundant, yellow flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.