ARD46 Grapevine Cross-Breeding for High Yield and Handling
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Solution Overview
Problem
There is a need for a new Vitis vinifera grapevine variety that combines desirable traits such as high production, disease resistance, and excellent handling and shipping qualities, while being adaptable to various environmental conditions.
Innovation Solution
The 'ARD46' grapevine variety is developed through deliberate cross-breeding of 103C-57+2 and 26−6+3, resulting in a red seedless table grape with unique genetic qualities, exhibiting characteristics like attractive meaty berries, Labrusca flavor, and resistance to cold, drought, and heat, with successful asexual propagation and transmission of traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If deliberate cross-breeding is performed to combine desirable traits from parent varieties, then the new variety exhibits improved production capacity and disease resistance, but the breeding process requires significant time and resource investment
Solution Approach 1:
The patent combines multiple desirable traits from two parent varieties (103C-57+2 and 26-6+3) through deliberate cross-breeding to create a new variety that exhibits both high production capacity (38 bunches per vine) and disease resistance, merging the strengths of both parents into a single improved variety
2Productivity
If the grapevine variety is designed for high production with multiple bunches per vine, then the yield increases, but the fruit quality and handling characteristics may be compromised
Solution Approach 1:
The patent achieves high productivity (38 bunches per vine) while maintaining excellent handling quality through local quality optimization - each bunch contains berries with specific characteristics (firm flesh, thick skin, uniform size) that are optimized for handling, while the overall vine structure supports high production through proper spacing and training systems
3Adaptability or versatility
If the grapevine is bred for resistance to multiple environmental stresses (cold, drought, heat), then the adaptability improves, but the plant may become more sensitive to specific environmental factors like direct sun and wind exposure
Solution Approach 1:
The patent employs preliminary action by implementing protective cultural practices before environmental stress occurs - such as providing windbreaks and shade structures in advance, and selecting planting locations that naturally protect against harsh sun and wind exposure, allowing the variety to thrive despite its sensitivities
Data Source
AI summary
A new distinct variety of grapevine plant named ‘ARD46’ abundantly forms attractive meaty seedless berries with a red skin coloration, lax and large clusters which display a Labrusca flavor, the fruit commonly is ready for harvesting during July-August in San Joaquin Valley of Central California, U.S.A, and displays good eating qualities as a table grape having a fruit firmness which renders the fruit well amenable for handling, shipping, and storage.