Verbena KLEVP18004 Breeding for Mildew Tolerance and Branching

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Solution Overview

Problem

There is a need for a new Verbena variety that exhibits desirable horticultural traits such as red-purple flowers, good branching, and tolerance to powdery mildew, which are not adequately met by existing Verbena varieties.

Innovation Solution

The development of Verbena x hybrida variety 'KLEVP18004', resulting from a cross between proprietary varieties 'VC12.0006.17' and 'VC12.0038', which demonstrates red-purple flowers, good branching, and tolerance to powdery mildew, and is capable of reproducing true to type through vegetative propagation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing Verbena varieties are used, then they have some basic horticultural traits, but they do not adequately exhibit red-purple flowers, good branching, and tolerance to powdery mildew

Engineering Contradiction:

Improvetolerance to powdery mildewVSAvoidhorticultural traits diversity

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent converts the harmful effect of powdery mildew susceptibility into a beneficial trait by selecting and breeding plants that exhibit natural tolerance to the disease. The breeding program specifically screened for individuals showing resistance to powdery mildew infection, transforming a prevalent garden problem into a desirable characteristic of the new variety.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent changes the genetic parameters of Verbena plants through controlled cross-pollination between selected parent plants. By manipulating breeding parameters and selecting specific offspring with desired traits (red-purple flower color, branching habit, and disease tolerance), the patent creates a new variety with improved overall performance.

Inventive Principle:

Principle #35Parameter changes

2Shape

If existing Verbena varieties are used, then they have some flower colors, but they do not adequately produce red-purple flowers

Engineering Contradiction:

Improveflower colorVSAvoidbreeding complexity

Core Design Contradiction:

ShapeVSEase of manufacture

Solution Approach 1:

The patent applies local quality by focusing breeding efforts on specific traits rather than attempting to improve all characteristics simultaneously. The breeding program concentrated on achieving red-purple flower color in the corolla while maintaining other desirable traits, allowing for targeted selection and more efficient breeding progress.

Inventive Principle:

Principle #3Local quality

3Shape

If existing Verbena varieties are used, then they have some branching patterns, but they do not adequately exhibit good branching

Engineering Contradiction:

Improvebranching patternVSAvoidtime to develop desired traits

Core Design Contradiction:

ShapeVSLoss of time

Solution Approach 1:

The patent applies preliminary action by selecting parent plants that already possess desirable branching characteristics before initiating the cross-breeding program. This pre-selection of parents with good branching habits accelerates the appearance of the trait in offspring, reducing the time required to develop the desired branching pattern in the new variety.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUSPP31326P2<i>Verbena </i>plant named ‘KLEVP18004’

Publication Date: 2020.01.07 KLEMM & SOHN GMBH & CO KG

AI summary

A new Verbena plant particularly distinguished by red-purple flowers, good branching, and good tolerance to powdery mildew, is disclosed.