Hydrangea LC NO15 Cultivar Uniform Habit and Flower Density

Solution Overview

Problem

There is a need for a new cultivar of Hydrangea paniculata that exhibits a uniform plant habit, attractive inflorescences, and improved flowering characteristics, as existing varieties may lack consistency in growth patterns and flower density.

Innovation Solution

The development of the Hydrangea plant cultivar 'LC NO15' through cross-pollination between Hydrangea paniculata 'Magical Candle' and 'DVP Pinky', resulting in a compact, freely branching plant with dense, long-lasting inflorescences and unique flower color changes from white to purplish red, achieved through asexual reproduction by softwood terminal cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If existing Hydrangea varieties are used, then they may have attractive flowers, but they lack consistency in growth patterns and flower density

Engineering Contradiction:
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent applies parameter changes by selectively breeding Hydrangea paniculata to modify growth parameters (plant habit, branching pattern, flower density) to achieve uniform and consistent characteristics across all plants of the cultivar 'LC NO15'

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If existing Hydrangea varieties are used, then they may have good flowering, but they lack prolonged flowering periods

Engineering Contradiction:
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The patent modifies the flowering parameters through controlled cross-pollination between 'Magical Candle' and 'DVP Pinky' to extend the duration of flowering while maintaining high flower density and reliability in the progeny

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If asexual reproduction by softwood terminal cuttings is used, then true-to-type reproduction is achieved, but propagation time and effort increase

Engineering Contradiction:
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent performs preliminary action by taking softwood terminal cuttings during the optimal growth period when the cutting material is most suitable for rooting, thereby reducing the overall propagation time while ensuring true-to-type reproduction

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUSPP34330P2<i>Hydrangea </i>plant named ‘LC NO15’
Publication Date: 2022.06.14
  • USPP34330P2 patent drawing
  • USPP34330P2 patent drawing

AI summary

A new and distinct cultivar of Hydrangea plant named ‘LC NO15’, characterized by its relatively compact, upright to outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; freely flowering habit with plants remaining in flower for a long period of time; large and strong inflorescences with large white-colored sterile flowers that become purplish red with subsequent development; and good garden performance.