Guzmania Hybrid VARIADA Breeding Segmentation

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Solution Overview

Problem

There is a need for a greater variety of Guzmania cultivars with attractive ornamental features and additional hybrid cultivars that can be easily propagated by seed, as existing cultivars lack diversity and efficient seed propagation methods.

Innovation Solution

A new, distinct, and stable Guzmania hybrid 'VARIADA' was developed through a controlled breeding program by crossing the Guzmania lingulata inbred line (code 87055) with the Guzmania wittmackii inbred line (code 09160344), resulting in plants with superior bract production and unique orange-red inflorescence, which can be propagated sexually or asexually.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a greater variety of Guzmania cultivars with attractive ornamental features is developed, then ornamental diversity is improved, but breeding program complexity increases

Engineering Contradiction:

Improveornamental diversityVSAvoidbreeding program complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The breeding program is segmented into distinct phases: selecting specific inbred lines with desirable traits, controlled crossing between designated parents, seed harvesting and germination, and propagation of uniform hybrid plants. This segmentation allows systematic development of ornamental diversity while managing complexity through structured procedures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inbred lines serve as intermediaries in the breeding program. By developing homozygous inbred lines first (Guzmania lingulata inbred line 87055 and Guzmania wittmackii inbred line 09160344), the program creates stable genetic foundations that simplify subsequent hybridization and ensure uniform ornamental traits in progeny.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If hybrid cultivars that can be easily propagated by seed are produced, then propagation efficiency is improved, but genetic uniformity may be compromised

Engineering Contradiction:

Improvepropagation efficiencyVSAvoidgenetic uniformity

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

Preliminary development of homozygous inbred lines ensures genetic stability before hybridization. The inbred lines are prepared in advance through multiple generations of brother-sister crossing, so that when crossed to produce hybrids, the F1 progeny exhibit uniform genetic composition and can be easily propagated by seed while maintaining consistency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The use of homozygous inbred lines as parents creates genetically uniform hybrid progeny. Both parental inbred lines possess sufficient homozygosity, ensuring that all F1 hybrid plants are genetypically and phenotypically uniform, allowing efficient seed propagation while maintaining genetic consistency across the cultivar.

Inventive Principle:

Principle #33Homogeneity

Data Source

PatentUS9215853B2<i>Guzmania </i>plant named ‘VARIADA’

Publication Date: 2015.12.22 ANTHURA

AI summary

A new and distinct Guzmania hybrid named ‘VARIADA’ characterized by solid growth habit; funnel-form rosette plant, measuring about 50 cm in height (above the pot when flowering); numerous, green colored foliage (measuring about 50 cm length and about 4.5 cm in width) Superior floral bract production; bracts are orange-red in color (closest to RHS 32A and 17A) compound inflorescence, measuring about 18 cm in height and about 20 cm in diameter; and long-lasting habit.