Maize Inbred PH17B9 Breeding for Disease Resistance and Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and mechanical harvesting.
Innovation Solution
The development of the maize variety PH17B9, which is a novel inbred line with specific traits like resistance to diseases and abiotic stress, and processes for making PH17B9 through crossing and backcross conversion, allowing for the introduction of desired genetic material to enhance its characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the time to crop maturity increases and uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-selecting and pre-combining multiple desirable traits (disease resistance, drought tolerance, uniformity) into a single inbred line PH17B9 through systematic breeding programs. This preliminary combination of traits in the inbred parent line allows the resulting hybrid to inherit all these traits simultaneously without requiring extended breeding time in subsequent generations.
2Reliability
If traditional plant breeding is used to combine desirable traits, then drought tolerance can be achieved, but uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent merges multiple desirable traits including drought tolerance and uniformity of plant characteristics into a single inbred line PH17B9. By combining these traits in the inbred parent through controlled breeding, the resulting hybrid inherits both drought tolerance and uniformity simultaneously, resolving the contradiction between achieving stress tolerance and maintaining plant uniformity.
3Productivity
If mechanical harvesting is used, then productivity increases, but uniformity of plant characteristics becomes more critical and harder to maintain
Solution Approach 1:
The patent applies parameter changes by modifying the genetic composition of inbred line PH17B9 to enhance uniformity of critical plant characteristics including maturity timing, plant height, and ear height. These genetic parameter changes ensure that the hybrid produces uniform plants suitable for mechanical harvesting, thereby enabling high productivity while maintaining the uniformity required for efficient mechanical operations.
Data Source
AI summary
A novel maize variety designated PH17B9 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH17B9 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH17B9 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH17B9 or a locus conversion of PH17B9 with another maize variety.