Multi-Genotype Colony Varieties for Crop Disease Resistance
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Solution Overview
Problem
The dominance of single-genotype varieties in crop production leads to reduced genetic diversity, increased susceptibility to diseases, and high costs associated with hybrid rice breeding, making it difficult to achieve high yields, quality, and pest resistance simultaneously.
Innovation Solution
The development of multi-genotype colony varieties through a breeding strategy that involves selecting parental lines with diverse traits, hybridization, self-crossing, and segregation to create stable recombinant populations, which are then evaluated and mixed to form uniform and stable colony varieties, reducing the risk of sterility and lowering production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If single-genotype varieties are used for crop production, then uniformity and ease of management are improved, but genetic diversity is reduced and resistance to pests and diseases deteriorates
Solution Approach 1:
The patent segments the variety into multiple distinct genotypes (first genotype, second genotype, third genotype) that are spatially separated in different zones within the same field. Each genotype maintains its unique characteristics while collectively providing disease resistance and uniformity benefits.
Solution Approach 2:
Different genotypes are assigned to different zones based on their specific traits. The first genotype with strong disease resistance is placed in the first zone, while other genotypes with complementary traits are placed in subsequent zones, optimizing local characteristics for overall variety performance.
2Productivity
If hybrid rice breeding is used to achieve high yields and resistance, then productivity is improved, but production costs and technical risks increase
Solution Approach 1:
The patent employs self-pollinating or cross-pollinating mechanisms inherent to the plant species to maintain and reproduce the multi-genotype variety without requiring complex hybrid breeding programs, sterile lines, or chemical emasculation procedures.
Solution Approach 2:
Instead of using complex hybrid breeding to achieve diversity, the patent inverts the approach by directly utilizing multiple stable genotypes that can be propagated through conventional means, eliminating the need for sterile lines and complex hybridization protocols.
3Ease of manufacture
If conventional varieties are used for production, then production costs are reduced, but enforcement of plant variety rights and protection is insufficient
Solution Approach 1:
The patent creates a composite variety structure combining multiple distinct genotypes with identifiable differences. This composite nature provides inherent protection mechanisms as the variety can be clearly distinguished and protected through its unique multi-genotype composition, enabling better intellectual property protection while maintaining cost-effectiveness.
Data Source
AI summary
This invention relates to methods for constitution and production of colony varieties of crops. Its characteristics are shown below. According to their phenotypes, single-genotype varieties, hybrid combinations or mixtures of varieties and combinations from fundamental populations, which are consistent or uniform in major characters and share particular breeding goals, will constitute the colony varieties of crops. The said single-genotype varieties or hybrid combinations are multiplied separately. According to the breeding goals, their seeds are mixed in a specific ratio to form the preparations for planting. The varieties produced in such a way are featured with uniformity, stability and peculiarity.