Caladium White Cap Cultivar Breeding and Propagation

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Solution Overview

Problem

Current Caladium cultivars lack uniform plant habit, attractive foliage coloration, and optimal performance in containers and gardens, with variations in environmental conditions affecting phenotype without changing genotype.

Innovation Solution

The development of a new Caladium cultivar, 'White Cap', resulting from a cross-pollination between Caladium×hortulanum 'White Christmas' and 'Aaron', exhibiting upright and dense growth, unique leaf venation patterns, and improved growth rate, achieved through asexual reproduction by 'chipping' tubers, maintaining stability across generations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If cross-pollination breeding is performed to create new Caladium cultivars, then attractive foliage coloration and uniform plant habit are improved, but breeding time and complexity increase

Engineering Contradiction:
Improveuniform plant habitVSAvoidbreeding time
Core Design Contradiction:
ShapeVSLoss of time

Solution Approach 1:

The inventor performed preliminary cross-pollination breeding to create a stable hybrid cultivar before commercial propagation. By establishing the uniform plant habit and attractive foliage coloration through controlled cross-pollination of parent plants, the inventor created a genetically stable foundation that would maintain consistency through asexual reproduction, eliminating the need for repeated breeding cycles.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes asexual reproduction by tuber chipping to create exact genetic copies of the selected hybrid plant. This copying method preserves the uniform plant habit and attractive foliage coloration achieved through the initial cross-pollination, allowing rapid multiplication of the desired traits without requiring repeated breeding operations.

Inventive Principle:
Principle #26Copying

2Stability of the object's composition

If asexual reproduction by tuber chipping is used, then genetic stability and true-to-type reproduction are improved, but propagation speed is limited by manual processing

Engineering Contradiction:
Improvegenetic stabilityVSAvoidpropagation speed
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The propagation method divides the tuber into multiple segments, each containing an axillary bud and cortical tissue. This segmentation allows a single tuber to produce multiple independent plantlets simultaneously, significantly increasing propagation speed while maintaining genetic stability through asexual reproduction. Each segment functions as an independent propagation unit that can be planted separately.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary tuber segmentation and planting preparation in advance, allowing multiple propagules to be produced from a single parent tuber before commercial distribution. This preliminary action enables batch propagation that accelerates production while maintaining genetic consistency across all propagated plants.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If Caladium plants are grown in varied environmental conditions, then adaptability is improved, but phenotype consistency deteriorates

Engineering Contradiction:
Improveenvironmental adaptabilityVSAvoidphenotype consistency
Core Design Contradiction:
Adaptability or versatilityVSShape

Solution Approach 1:

The patent uses asexual reproduction to create genetically identical copies of the selected hybrid plant. These genetic copies maintain consistent phenotype expression across different environmental conditions because they share the same optimized genotype. The uniform plant habit and foliage coloration are preserved through genetic copying rather than sexual recombination.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent selects and stabilizes specific genetic parameters through cross-pollination breeding that confer environmental adaptability. By fixing these genetic parameters in the hybrid cultivar, the plant maintains phenotype consistency across varying environmental conditions while retaining the ability to adapt to different growing zones and cultural practices.

Inventive Principle:
Principle #35Parameter changes

4Shape

If focus is placed on container performance, then ornamental value is improved, but plant size may be limited compared to garden-grown plants

Engineering Contradiction:
Improveattractive foliage colorationVSAvoidplant size
Core Design Contradiction:
ShapeVSLength of moving object

Solution Approach 1:

The patent optimizes specific local qualities of the plant - particularly the foliage coloration with white venation and speckled interveinal areas - to enhance ornamental value for container use. The uniform plant habit and compact growth pattern are selectively bred to suit container dimensions while maintaining the striking foliage characteristics that provide ornamental appeal.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent creates a cultivar with dynamic growth characteristics that can adapt to different space constraints. The plant maintains an upright, compact habit suitable for containers while retaining the ability to achieve larger size in garden settings, providing flexibility for different cultivation purposes without sacrificing the attractive foliage coloration.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUSPP23815P2Caladium plant named 'White Cap'
Publication Date: 2013.08.06 HARTMAN ROBERT DALE
  • USPP23815P2 patent drawing
  • USPP23815P2 patent drawing
  • USPP23815P2 patent drawing

AI summary

A new and distinct cultivar of Caladium plant named ‘White Cap’, characterized by its upright plant habit; intermediate to tall plant size; uniform plant habit; vigorous and dense growth habit; fancy-type leaves with white-colored venation and white, greyed green and green speckled interveinal areas and dark green-colored margins; and good landscape performance.