Asteraceae Flower Bud Formation via Temperature Differential

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Solution Overview

Problem

There is a lack of methods for promoting flower bud formation in plants of the Asteraceae family, specifically in dandelions, which are essential for crossbreeding and rubber production.

Innovation Solution

Controlling the cultivation temperature by setting it lower by at least 5°C in the reproductive phase compared to the vegetative phase, in an environment with illuminance at the leaf level under 10000 lux or lower, effectively shifts plants from the vegetative to the reproductive phase, promoting flower bud formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If lighting duration is extended to suppress flower bud formation, then plant growth is maintained, but flower bud formation is delayed

Engineering Contradiction:
Improveflower bud formation timingVSAvoidplant growth rate
Core Design Contradiction:
Duration of action of stationary objectVSProductivity

Solution Approach 1:

The patent changes the temperature parameter to control flower bud formation. By lowering the temperature to 10°C or lower for a specific period, the patent promotes flower bud formation without needing to extend lighting duration, thus avoiding delay in plant growth while achieving reproductive phase transition.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of stationary object

If temperature is lowered to promote flower bud formation, then reproductive phase is accelerated, but vegetative growth may be suppressed

Engineering Contradiction:
Improveflower bud formation speedVSAvoidvegetative growth rate
Core Design Contradiction:
Duration of action of stationary objectVSProductivity

Solution Approach 1:

The patent applies periodic temperature control where the temperature is lowered to 10°C or lower for a specific period (4-16 hours daily) during the vegetative phase. This periodic cold treatment promotes flower bud formation while allowing vegetative growth to continue during other periods, resolving the contradiction between accelerating reproduction and maintaining growth.

Inventive Principle:
Principle #19Periodic action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method allows for controlled flower bud formation, increasing pollen and pistil production, facilitating crossing and eliminating timing adjustments based on growth rates, thereby enhancing crossbreeding efficiency and rubber production in plants like Taraxacum kok-saghyz.

Implementation Method 1

flower bud formation in the reproductive phase can be promoted by setting the cultivation temperature in the reproductive phase lower by at least certain degrees than the cultivation temperature in the vegetative phase

Methodology Applied
Scientific EffectTemperature differential effect on plant development:

Data Source

PatentUS10420290B2Method for cultivating plants of Asteraceae family
Publication Date: 2019.09.24 SUMITOMO RUBBER INDUSTRIES LTD

AI summary

A method for cultivating plants of the Asteraceae family, which promotes flower bud formation in the reproductive phase. A method for cultivating plants of the Asteraceae family, wherein the cultivation temperature in the reproductive phase is set lower by at least 5° C. than the cultivation temperature in the vegetative phase to promote flower bud formation in the reproductive phase.