UV-B Seedling Priming for Crop Hardiness and Yield
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Solution Overview
Problem
Existing methods for improving crop yield and quality, such as fertilizers, pesticides, genetic breeding, and environmental control, often come with environmental risks, health hazards, or uncertain outcomes, and UV radiation treatments in the past have led to photodamage and reduced biomass accumulation.
Innovation Solution
Exposing plant seedlings to ultraviolet (UV) irradiation with specific wavelengths between 280-310 nm, particularly 280-290 nm, indoors before a subsequent growth phase, to enhance hardiness and yield, using LED devices that administer UV-B light with optional visible light, and selecting plants based on predicted hardiness and yield traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UV radiation is used to improve stress tolerance and defense mechanisms, then plant hardiness is improved, but biomass accumulation and crop yield are reduced
Solution Approach 1:
The patent applies preliminary action by exposing seedlings to UV-B radiation during the seedling stage before they are transplanted to the field. This early exposure prime the plants' defense mechanisms and hardiness traits before they face full environmental stress in the crop production phase, allowing them to maintain both stress tolerance and biomass accumulation throughout the growing season.
2Reliability
If multiple UV wavebands are used to prevent transplantation shock, then seedling viability is improved, but treatment process complexity increases
Solution Approach 1:
The patent extracts and focuses on using only the UV-B waveband (280-310 nm) for the treatment, rather than employing multiple UV wavebands as suggested in prior art. This selective approach simplifies the treatment process and device requirements while maintaining effectiveness in preventing transplantation shock and improving seedling viability.
3Productivity
If fertilizers and chemicals are used to improve crop yield, then crop yield is improved, but environmental pollution and health risks increase
Solution Approach 1:
The patent converts the potentially harmful UV-B radiation into a beneficial treatment that naturally enhances plant stress tolerance and hardiness. By using UV-B radiation to prime plant defense mechanisms, the approach eliminates or reduces the need for chemical fertilizers and pesticides, thereby improving crop yield while eliminating environmental pollution and health risks associated with chemical inputs.
4Reliability
If genetic breeding is used to improve disease resistance, then disease resistance is improved, but development time and cost increase
Solution Approach 1:
The patent substitutes the time-consuming mechanical process of genetic breeding with a physiological approach using UV-B radiation treatment. Instead of waiting for multiple generations of selective breeding to develop disease-resistant varieties, the UV-B treatment immediately primes plant defense mechanisms and hardiness traits, achieving similar or superior disease resistance much faster and at lower cost.
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
Improves long-term hardiness and crop yield by enhancing resistance to stress and increasing fruit weight, number of fruits, Brix content, and other quality metrics, while reducing pesticide use and environmental impact.
Implementation Method 1
it was believed to stress plants by subjecting them to photodamage and trigger inappropriate developmental responses
Implementation Method 2
a loss of biomass accumulation, thought to be due to a redirection of carbohydrate substrate from growth to secondary metabolism (i.e. protection mechanisms)
Data Source
AI summary
Provided herein are methods and compositions relating to administering light enriched for UV-B to a plant material to improve subsequent plant performance.