GAMAD IX Crapemyrtle Breeding Intermediate Habit Mildew Resistance

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Solution Overview

Problem

There is a lack of intermediate red-purple flowering crapemyrtle varieties with mildew resistance and early flowering characteristics, as existing varieties either have larger habits or different flower colors.

Innovation Solution

The new crapemyrtle variety 'GAMAD IX' is developed, characterized by its intermediate growth habit, mildew resistance, early flowering in mid to late June, and abundant red-purple flowers, which are similar in color to 'Catawba' but with a smaller habit and deeper pink to rose flowers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing crapemyrtle varieties are used, then flower color or habit size may be achieved, but the combination of intermediate habit, mildew resistance, and early flowering is not available

Engineering Contradiction:
Improvecombination of traitsVSAvoidavailability of variety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent combines multiple desirable traits (intermediate habit, mildew resistance, early flowering, and red-purple flower color) into a single cultivar through crossbreeding and selection processes, creating a new variety that integrates these characteristics that were previously separate in different plant lines

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If larger habit varieties are used, then flower abundance may be achieved, but the plant occupies more space and requires more maintenance

Engineering Contradiction:
Improveflower abundanceVSAvoidplant habit size
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent modifies the growth habit parameter to achieve an intermediate size that balances flower production with space requirements, creating a compact yet productive variety that does not require the large space of traditional crapemyrtle varieties

Inventive Principle:
Principle #35Parameter changes

3Shape

If later flowering varieties are used, then flower color development may be achieved, but the planting season is extended and space competition increases

Engineering Contradiction:
Improveflower color developmentVSAvoidflowering time
Core Design Contradiction:
ShapeVSLoss of time

Solution Approach 1:

The patent has induced early flowering through selective breeding and environmental management, causing the plant to produce flowers before the typical timing, thus gaining a head start in the growing season and reducing competition for space and resources

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUSPP23560P3Crapemyrtle plant named `GAMAD IX`
Publication Date: 2013.04.23 UNIVERSITY OF GEORGIA RESEARCH FOUNDATION INC

AI summary

A new and distinct cultivar of crapemyrtle, ‘GAMAD IX’, is provided. ‘GAMAD IX’ is a Lagerstroemia indica×Lagerstroemia fauriei hybrid, which is characterized by intermediate growth habit, mildew resistance, and earlier flowering with abundant purple flowers.