Barley Cultivar Oreana Breeding for Yield and Lodging Resistance
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Solution Overview
Problem
Barley breeders face challenges in developing stable, high-yielding barley varieties with desirable traits such as grain quality, disease tolerance, and lodging resistance, as existing methods lack effective solutions for combining these characteristics in a single variety.
Innovation Solution
The development of the barley cultivar Oreana, which is a two-row, mid-season maturing variety with improved grain yield, lower lodging, and tolerance to certain diseases, achieved through controlled crossing and breeding techniques, including selfing, backcrossing, and genetic modification to introduce desired traits like disease resistance and improved nutritional quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop barley varieties, then genetic diversity is maintained, but the ability to combine multiple desirable traits (grain quality, disease tolerance, lodging resistance) in a single variety is limited
Solution Approach 1:
The patent combines multiple desirable traits (grain quality, disease tolerance, lodging resistance) from different parental lines into a single barley variety through systematic crossing and selection programs, creating a unified cultivar that expresses all desired characteristics simultaneously
Solution Approach 2:
The breeding process is divided into distinct phases including initial crossing, F1 generation evaluation, backcrossing stages, and final selection, allowing complex trait combination to be managed through sequential, controlled steps rather than attempting all combinations simultaneously
2Productivity
If multiple crossing and selection steps are performed to combine desirable traits, then trait combination improves, but the time and resources required for breeding increase
Solution Approach 1:
The patent performs preliminary evaluation of parental lines for specific traits before initiating crosses, and conducts early-generation screening to identify promising combinations, thereby reducing the time required in later breeding stages by eliminating unpromising lines early in the process
Solution Approach 2:
The breeding program maintains continuous progression through multiple generations simultaneously with parallel evaluation of different trait combinations, ensuring that useful breeding actions occur without interruption or idle periods between crossing and selection phases
3Reliability
If conventional breeding approaches are used, then genetic stability is maintained, but the achievement of high grain yield combined with disease tolerance and lodging resistance is difficult
Solution Approach 1:
The patent implements systematic performance evaluation and selection at each breeding generation, using measured data on grain yield, disease resistance, and lodging resistance to guide subsequent crossing decisions and selection criteria, ensuring that only lines meeting performance thresholds progress to the next stage
Solution Approach 2:
The breeding program deliberately modifies genetic parameters through controlled crossing between lines with complementary traits, changing the genetic composition to achieve superior combinations of yield, disease tolerance, and lodging resistance while maintaining variety stability through systematic selection
Data Source
AI summary
A barley cultivar, designated Oreana, is disclosed. The disclosure relates to seeds, plants, and derivatives of barley cultivar Oreana, and methods for producing a barley plant by crossing Oreana with itself or another barley variety. The disclosure also relates to barley varieties or breeding varieties and plant parts derived from barley Oreana, to methods for producing other barley varieties, lines, or plant parts derived from barley Oreana, and to the barley plants, varieties, and their parts derived from the use of those methods. The disclosure further relates to hybrid barley seeds and plants produced by crossing barley cultivar Oreana with another barley cultivar. The disclosure relates to methods for developing other barley varieties or breeding lines derived from variety Oreana, including cell and tissue cultures and haploid systems.