Schizophragma MINSNOW3 Early Flowering Breeding

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Solution Overview

Problem

Existing Schizophragma cultivars do not exhibit flowering on young plants, and there is a need for a more vigorous variety with distinct horticultural characteristics.

Innovation Solution

The new cultivar 'MINSNOW3' is developed through a breeding program, characterized by its vigorous growth, white showy sepals, and ability to bloom on young plants, achieved through asexual reproduction by softwood cuttings, which stabilizes its unique traits across generations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional Schizophragma cultivars are used, then the plant maintains typical growth characteristics, but the plant does not flower on young plants and lacks vigorous growth

Engineering Contradiction:

Improveflowering on young plantsVSAvoidstability of traits

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The breeding program changed genetic parameters by selecting and crossing specific parent plants with desirable traits. The seed parent 'Rose Sensation' and unknown pollen parent were selected to produce offspring with early flowering and vigorous growth, achieving parameter changes in flowering age and growth rate while maintaining trait stability through controlled propagation

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses asexual reproduction by softwood cuttings to create copies of the selected cultivar 'MINSNOW3'. This copying method preserves the unique traits (vigorous growth, white sepals, early flowering) stable across generations, ensuring reliability while maintaining the improved productivity characteristics

Inventive Principle:

Principle #26Copying

2Reliability

If asexual reproduction by softwood cuttings is used, then the unique features are stabilized and reproduced true to type, but the process requires specific timing and conditions

Engineering Contradiction:

Improvetrue to type reproductionVSAvoidpropagation timing and conditions

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent performs preliminary actions by taking softwood cuttings during the appropriate growing season when the plant is most receptive to propagation. The cuttings are prepared and rooted under controlled conditions before being planted out, ensuring high success rate and true-to-type reproduction while managing the timing requirements

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the cultivar is propagated multiple times, then the unique characteristics are maintained, but the complexity of propagation increases

Engineering Contradiction:

Improvecharacteristic stabilityVSAvoidpropagation process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs asexual reproduction through softwood cuttings as a copying method that preserves genetic characteristics without the complexity of seed propagation. This copying approach maintains the unique traits (white sepals, vigorous growth, early flowering) stable across 8 successive generations while keeping the propagation process relatively simple and direct

Inventive Principle:

Principle #26Copying

Data Source

PatentUSPP31720P2<i>Schizophragma </i>plant named ‘MINSNOW3’

Publication Date: 2020.05.05 HORTIVAL DIFFUSION SAS

AI summary

A new and distinct Schizophragma cultivar named ‘MINSNOW3’ is disclosed, characterized by showy white sepals, sterile flowers, blooming begins on young plants. Plants are uniquely vigorous. The new variety is a Schizophragma, normally produced as an outdoor garden or container plant.