Dwarf Grapevine VDG001 Hybridization and Propagation
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Solution Overview
Problem
There is a need for a distinct and stable dwarf ornamental grapevine variety that can be differentiated from existing varieties, particularly the natural dwarf grapevine 'Pixie', with unique characteristics such as leaf size, color, petiole color, and berry skin color, while maintaining the dwarf growth habit and edibility of the fruit.
Innovation Solution
The development of a new dwarf ornamental grapevine 'VDG001' through controlled hybridization between 'Pixie' and 'Riesling', characterized by specific morphological traits like smaller mature leaves, light to medium green leaf color, reddish petioles, smooth leaf surface, and anthocyanin coloration, which is asexually propagated and maintained on its own roots, confirming its hybrid status through genotypic lab analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If controlled hybridization between 'Pixie' and 'Riesling' is performed to create a new variety, then unique morphological characteristics are achieved, but the complexity of variety development and characterization increases
Solution Approach 1:
The patent performs controlled hybridization between 'Pixie' and 'Riesling' to pre-establish the desired morphological characteristics before propagation. The preliminary crossing event creates the unique combination of traits (smaller leaves, light green color, reddish petioles, smooth surface) that are then fixed through asexual propagation, avoiding the need for repeated complex breeding operations.
Solution Approach 2:
The patent uses asexual propagation by single node softwood cuttings to create exact genetic copies of the hybrid plant. This copying process preserves the unique morphological characteristics achieved through hybridization while eliminating the need to repeatedly perform complex crossing operations to maintain the variety's distinctive traits.
2Stability of the object's composition
If asexual propagation by single node softwood cuttings is used, then genetic uniformity and stability are achieved, but the propagation process requires precise technical control
Solution Approach 1:
The patent segments the plant into single node softwood cuttings for propagation. By dividing the parent plant into discrete cutting units, each containing a node capable of rooting, the method achieves genetic uniformity while creating standardized propagation material that can be efficiently processed and maintained under controlled greenhouse conditions.
3Stability of the object's composition
If the grapevine is maintained on its own roots in container, then root system stability is achieved, but the growth space and cultivation complexity increase
Solution Approach 1:
The patent nests the grapevine root system within a container, creating a self-contained growth environment. This nesting approach maintains the stability of the root system and its connection to the above-ground plant while providing controlled cultivation conditions, effectively managing the plant's growth within a defined spatial boundary.
Data Source
AI summary
The invention is a new and distinct ornamental dwarf grapevine variety denominated ‘VDG001’. The new grapevine is characterized by light to medium green leaf color, reddish petiole, smooth mature leaf surface, petiole sinus with closed lobes, circular mature leaf, some veins with anthocyanin coloration and green berries.