Hybrid Tea Rose MEIVANAE Breeding for Disease Tolerance
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Solution Overview
Problem
There is a need for a Hybrid Tea Rose plant variety that combines attractive blossoms, disease tolerance, floriferousness, and a fruity fragrance, while being distinct from existing varieties and suitable for ornamental purposes.
Innovation Solution
A new Hybrid Tea Rose plant, 'MEIVANAE', was developed through artificial pollination of 'BAICENT' and a cross between 'MEIZINCARO' and an unnamed seedling, exhibiting powdery-yellow/orange blossoms with a light pink margin, dense semi-glossy foliage, good disease tolerance, and a fruity fragrance, suitable for asexual propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If artificial pollination is used to create a new variety combining multiple desirable traits, then the plant exhibits attractive blossoms, disease tolerance, and fruity fragrance, but the breeding process requires multiple generations of selective study and cross-breeding
Solution Approach 1:
The patent combines multiple desirable traits from different parent varieties through artificial pollination and selective breeding. The new variety 'MEIVANAE' merges disease tolerance, attractive blossoms, and fruity fragrance into a single plant, resolving the contradiction by integrating multiple functions into one variety through systematic cross-breeding programs.
Solution Approach 2:
The patent employs preliminary selective study of parent varieties before final cross-breeding. By pre-evaluating parent plants for specific traits and conducting controlled pollination experiments, the breeding process is optimized to achieve desired outcomes more efficiently, reducing the time required to develop varieties with multiple desirable characteristics.
2Ease of manufacture
If selective breeding is conducted to achieve distinct characteristics, then the new variety exhibits unique blossom color and fragrance, but the process requires extensive study to identify and propagate the desired traits
Solution Approach 1:
The patent applies local quality by focusing on specific desirable traits in specific parent varieties. Rather than attempting to improve all characteristics simultaneously, the breeding program targets particular qualities (blossom color, fragrance, disease resistance) in selected parent plants, making the complex breeding process more manageable and efficient.
Solution Approach 2:
The patent utilizes parameter changes by systematically varying breeding parameters such as pollination timing, parent selection criteria, and propagation methods. This approach allows the breeders to optimize the breeding process for achieving distinct aesthetic characteristics while managing the complexity of the selective breeding program.
3Stability of the object's composition
If a new variety is developed with stable characteristics, then the plant can be propagated true-to-type through asexual propagation, but the variety must undergo extensive testing to ensure characteristic stability
Solution Approach 1:
The patent employs self-service through asexual propagation methods such as budding, grafting, and cuttings. Once the desired characteristics are established in the new variety, the plant propagates itself true-to-type without requiring repeated sexual breeding, thereby ensuring characteristic stability while improving propagation efficiency for commercial production.
Data Source
AI summary
A new and distinct variety of Hybrid Tea Rose plant, herein referred to by its cultivar name, ‘MEIVANAE’, is provided which forms abundantly on a nearly continuous basis attractive, cup-shaped, powdery-yellow/orange colored blossoms with a light pink margin which emit a fruity fragrance. Attractive, semi-glossy, very dense foliage is formed, which contrasts beautifully with the blossoms. The disease tolerance is very good; particularly against Black Spot and Oidium. The new variety is well suited for proving attractive ornamentation in the landscape and is very floriferous.