Colocasia 'Hilo Bay' Leaf Shape and Propagation Stability
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Solution Overview
Problem
Current Colocasia varieties lack desirable attributes such as large, glossy olive green leaves with undulating margins and uniform dark purple petioles, which are stable and uniform in asexual propagation, making them unsuitable for commercial development.
Innovation Solution
The new Colocasia variety 'HILO BAY' is developed through controlled pollination, combining traits from '2000-110' and '2000-177', resulting in larger, ruffled olive green leaves with light purple veins and dark purple petioles, and producing secondary lateral shoots on short stolons, achieved through huli propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional Colocasia varieties are used, then propagation is simpler, but the leaves are smaller and lack desirable attributes such as glossiness, olive green color, and undulating margins
Solution Approach 1:
The patent combines multiple desirable traits from different parent plants through controlled pollination: the olive green leaf color and glossiness from one parent, and the undulating leaf margins from another parent, creating a new variety that merges these attributes into a single stable cultivar
Solution Approach 2:
The patent changes key phenotypic parameters of the Colocasia plant including leaf size (increased), leaf color (olive green), leaf surface texture (glossy), and leaf margin shape (undulating), transforming the plant to meet commercial ornamental standards
2Stability of the object's composition
If existing Colocasia varieties are propagated, then propagation process is straightforward, but the traits are not stable and uniform across generations
Solution Approach 1:
The patent performs preliminary controlled pollination and selective breeding to establish the desired trait combination before propagation, ensuring that the genetic foundation for stability is set in advance, so that subsequent asexual propagation yields uniform results
Solution Approach 2:
The patent uses asexual propagation methods to create exact genetic copies of the selected plant, ensuring that the unique combination of traits (olive green glossy leaves with undulating margins and dark purple petioles) is replicated uniformly across multiple generations without genetic variation
3Area of moving object
If Colocasia varieties with larger leaves are developed, then ornamental value increases, but the plant size and space requirements increase
Solution Approach 1:
The patent applies local quality by concentrating the development of large leaf area specifically in the foliage portion of the plant while maintaining a relatively compact overall plant structure through controlled growth habits and stolon production, allowing large leaves without proportionally large space requirements
Data Source
AI summary
A new cultivar of Colocasia plant named ‘HILO BAY’ that is characterized by a combination of large, glossy olive green colored, slightly ovate leaves that are ruffled or corrugated in texture and has an undulating leaf margin, dark purple petioles, and produces multiple secondary lateral shoots that are attached to the mother plant on short stolons. In combination these characteristics distinguish ‘HILO BAY’ from all other varieties of Colocasia known to the inventor.