Maize Inbred PH1KTF Uniformity and Yield
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
Development of a novel maize variety, PH1KTF, through a breeding process that involves crossing inbred lines, selfing, and ear-to-row selection to produce a substantially homozygous line with improved traits, and subsequent use in hybrid production to enhance yield and agronomic quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then resistance to diseases and insects, resistance to heat and drought, and greater yield can be achieved, but uniformity of plant characteristics such as germination, stand establishment, growth rate, maturity, plant height and ear height may be compromised
Solution Approach 1:
The breeding program segments the combination of traits by first developing inbreds with specific trait combinations through controlled crosses, then uses these segmented inbreds as parents to produce hybrids that exhibit both trait diversity and uniformity. Each inbred line is developed with specific resistance traits while maintaining internal uniformity through repeated selfing.
Solution Approach 2:
The patent applies parameter changes by manipulating the genetic composition through controlled breeding parameters - using specific crosses between inbreds with different trait combinations, controlling the F1 generation through selfing and selection, and adjusting breeding parameters across multiple generations to achieve both trait incorporation and uniformity.
2Stability of the object's composition
If inbred lines are developed through repeated selfing and selection, then uniformity of plant characteristics is improved, but the time to crop maturity and breeding complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-developing a set of inbred lines with desired traits through controlled crosses and selection before the actual hybrid production. This allows the inbreds to be prepared in advance with uniform characteristics, so that when hybrids are produced, the uniformity is already established, reducing the time needed for subsequent selection and testing.
Solution Approach 2:
The breeding program maintains continuity of useful action through repeated selfing and selection cycles that continuously refine the uniformity of inbred lines. This continuous process ensures that each generation maintains and improves upon the previous generation's uniformity, allowing efficient trait combination without excessive time loss.
3Productivity
If mechanical harvesting is implemented, then productivity is improved, but uniformity of plant characteristics such as plant height and ear height becomes critical
Solution Approach 1:
The patent applies local quality by ensuring uniformity of critical traits (plant height, ear height) specifically in the contexts where mechanical harvesting occurs. The inbred lines and hybrids are developed with controlled expression of these traits to local specifications that optimize mechanical harvesting, while other traits may vary.
Solution Approach 2:
The breeding program uses parameter changes to adjust plant height and ear height within specific ranges that are optimal for mechanical harvesting. By controlling these parameters through selective crosses and selfing, the patent creates varieties that maintain uniformity in height characteristics while preserving overall productivity.
Data Source
AI summary
A novel maize variety designated PH1KTF and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1KTF with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1KTF 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 PH1KTF or a locus conversion of PH1KTF with another maize variety.