Delosperma P15PY4 Cultivar Multi-Color Petals and Low Growth

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Solution Overview

Problem

There is a need for new cultivars of Delosperma plants with low-growing and well-spreading growth habits combined with long flowering periods and unique flower colors, as existing cultivars may lack these desirable traits.

Innovation Solution

The development of the Delosperma nubigenum 'P15PY4' cultivar, which exhibits a low-growing habit, long blooming period, and multi-color petals with creamy white centers, yellow mid-sections, and light pastel pink petals, achieved through asexual propagation by softwood cuttings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing Delosperma cultivars are used, then they may have simple flower colors or shorter flowering periods, but they lack the combination of low-growing habit, long flowering period, and unique multi-color petals

Engineering Contradiction:
Improvegrowth habit and flowering characteristicsVSAvoidflower color variety
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent applies local quality by creating distinct color zones within the flower petals. The petals exhibit creamy white centers, yellow mid-sections, and light pastel pink outer regions, with corresponding color variations in the petaloids. This spatial differentiation of color properties within the flower structure achieves the unique multi-color appearance that distinguishes this cultivar from others with simpler color patterns.

Inventive Principle:
Principle #3Local quality

2Reliability

If asexual propagation by softwood cuttings is used, then stable reproduction of unique features is achieved, but the propagation process requires specific technical procedures

Engineering Contradiction:
Improvereproduction stabilityVSAvoidpropagation complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs preliminary action by selecting and propagating a single unique plant ('P15PY4') from among many seedlings before large-scale production. This pre-selection step ensures that the desired traits (low-growing habit, long flowering period, multi-color petals) are established in the parent plant, guaranteeing stable inheritance in all subsequent generations through asexual propagation. The softwood cutting method is then applied to this pre-selected genotype.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the cultivar is developed for container and landscape use, then versatility in application is improved, but the plant must maintain compact size and disease resistance

Engineering Contradiction:
Improveuse application rangeVSAvoiddisease susceptibility
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent describes the cultivar as having excellent performance in container cultivation, which typically has limited soil volume and drainage capacity. The low-growing, compact habit of 'P15PY4' makes it suitable for containers where space is constrained, and the well-spreading growth pattern allows effective use of limited root zone. This adaptability to container conditions indirectly enhances disease resistance by improving drainage and reducing humidity-related pathogens.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUSPP31958P2<i>Delosperma </i>plant named ‘P15PY4’
Publication Date: 2020.07.07 NISHIKAWA KOICHIRO
  • USPP31958P2 patent drawing
  • USPP31958P2 patent drawing

AI summary

A new cultivar of Delosperma plant named ‘P15PY4’ that is characterized by its low-growing plant habit, its long blooming period and its flowers with multi-color petals that have creamy white centers, yellow mid-sections and light pastel pink petals.