Maize Inbred PH47K7 Accelerates Hybrid Breeding Cycles
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years from the first cross to delivering finished seed to farmers, and existing technologies face challenges in creating stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.
Innovation Solution
A novel maize variety, PH47K7, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and drought tolerance, achieved through backcross conversion, genetic manipulation, and transformation, allowing for the creation of hybrid seeds with enhanced yield and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to develop new maize varieties, then stable and high-yielding varieties can be achieved, but the development process takes six to twelve years which is time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred line PH47K7 with specific desirable traits (disease resistance, drought tolerance, yield potential) before hybrid development. This advance preparation and pre-characterization of parental lines accelerates the overall breeding timeline while ensuring reliable yield performance in the final hybrid variety
2Adaptability or versatility
If multiple desirable traits are combined in a single variety through traditional breeding, then disease resistance, drought tolerance, and yield can be achieved, but the process becomes increasingly complex and time-consuming
Solution Approach 1:
The patent uses inbred line PH47K7 as an intermediary carrier that already possesses multiple desirable traits (disease resistance, drought tolerance, yield potential). This intermediary line serves as a pre-packaged source of multiple traits, simplifying the breeding process by eliminating the need to separately combine multiple traits through successive crosses, thus reducing process complexity while maintaining high adaptability
3Productivity
If novel maize varieties with enhanced traits are developed, then yield and disease resistance can be improved, but the breeding process requires numerous steps taking six to twelve years
Solution Approach 1:
The patent applies preliminary action by pre-developing and characterizing inbred line PH47K7 with enhanced productivity traits (high yield potential, disease resistance, drought tolerance) before hybrid development. This advance preparation consolidates multiple breeding steps into a more efficient process, achieving high maize yield in the final hybrid while significantly reducing the overall breeding cycle duration from the traditional six to twelve years
Data Source
AI summary
A novel maize variety designated PH47K7 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH47K7 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH47K7 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH47K7 or a locus conversion of PH47K7 with another maize variety.