Colocasia Aloha Plant Breeding and Propagation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Colocasia varieties lack desirable combinations of plant vigor, novel leaf coloration, and leaf texture, limiting their commercial and ornamental appeal.
Innovation Solution
The development of the 'Aloha' variety through controlled pollination between Colocasia 'Maui Gold' and 'Coal Miner', resulting in large, glossy leaves with unique color transitions and a dense, clumping habit, achieved via 'huli propagation' and tissue culture methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing Colocasia varieties are used, then cultivation is simple, but they lack desirable combinations of plant vigor, novel leaf coloration, and leaf texture
Solution Approach 1:
The patent combines multiple desirable traits from different parent varieties into a single offspring variety 'Aloha'. The plant merges the vigorous growth habit from one parent with novel purple-black leaf coloration and glossy texture from another, creating a unified variety that exhibits all desired characteristics simultaneously rather than requiring separate varieties for each trait.
Solution Approach 2:
The invention achieves novel leaf coloration through specific localized characteristics - the upper leaf surfaces develop purple-black coloration while maintaining glossy texture, and the lower surfaces show contrasting green and purple-black areas between veins. This local differentiation of color and texture qualities within the leaf structure provides the desired visual variety without requiring complex external modifications.
2Adaptability or versatility
If controlled pollination breeding is used to develop new varieties, then novel leaf coloration and texture are achieved, but the breeding process requires long-term programs
Solution Approach 1:
The patent employs preliminary action through careful selection of parent varieties that already possess complementary desirable traits. By pre-selecting parents with specific characteristics (vigorous growth, potential for novel coloration), the breeding program is positioned to achieve the desired outcome more efficiently, reducing the time required compared to breeding from unrelated or less suitable parent stock.
Solution Approach 2:
Once the desired variety 'Aloha' is developed through the time-consuming breeding process, the invention uses asexual propagation methods (huli propagation and tissue culture) to create exact genetic copies. This copying approach allows rapid multiplication of the proven superior genotype without repeating the lengthy breeding process, thereby reducing the effective time loss for producing additional plants of the same desirable type.
3Reliability
If asexual propagation by huli method is used, then stable and uniform reproduction is achieved, but the propagation process requires precise excision and replanting techniques
Solution Approach 1:
The huli propagation method divides the parent plant into separable segments - specifically excising the apical portion containing the shoot tip and attached petiole base. This segmentation creates independent propagable units that can be replanted separately, enabling stable reproduction while maintaining a relatively simple mechanical process that avoids the complexity of sexual pollination and seed development.
Solution Approach 2:
The patent uses the basal portion of the petiole (15-20 cm section) as an intermediary structure that connects the shoot tip to the parent plant during excision. This intermediary tissue serves as a natural handle and transport medium, facilitating the removal and replanting process while ensuring the shoot remains viable and properly oriented for successful establishment in new locations.
Data Source
AI summary
A new variety of Colocasia plant named ‘Aloha’ that is characterized by large glossy sagittate leaves which emerge dark olive-green in color and rapidly become dark purple-black in color. The under surfaces of the leaves of ‘Aloha’ exhibit prominent raised veining which is contrasting light green in color. ‘Aloha’ produces numerous closely-attached basal shoots such that mature plants of ‘Aloha’ are dense in overall habit.