Hybrid Corn Seed Production with Short Female Rows for Better Pollen Flow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The efficiency and productivity of commercial corn seed production are hindered by the limitations of pollen flow and distribution, particularly in row arrangements with higher numbers of female corn plants, leading to reduced pollination and yield, especially for interior or distant rows.
Innovation Solution
Utilizing shorter female inbred corn plants, typically semi-dwarf or dwarf varieties, to reduce obstruction of pollen flow and increase pollen load, combined with potential use of air flow devices to enhance pollen distribution, and employing targeted suppression of GA oxidase genes to achieve a short stature phenotype without reproductive off-types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If taller female inbred corn plants are used to increase seed production capacity, then the yield potential increases, but pollen flow obstruction increases and pollination efficiency decreases
Solution Approach 1:
The patent applies parameter changes by selecting female inbred corn plants with specific height parameters that are shorter than conventional tall female lines. This height parameter optimization reduces pollen flow obstruction while maintaining adequate seed production capacity, directly resolving the contradiction between productivity and pollen flow efficiency.
2Productivity
If higher numbers of female corn plants are planted per row to increase productivity, then seed yield potential increases, but pollen distribution efficiency decreases for interior and distant rows
Solution Approach 1:
The patent changes the height parameter of female corn plants to shorter varieties, which improves pollen distribution efficiency to interior and distant rows while maintaining high plant numbers per row. This parameter modification allows reliable pollination across all rows even with increased female plant density.
3Quantity of substance
If conventional tall female inbred corn plants are used, then reproductive capacity is maintained, but land use efficiency and standability decrease
Solution Approach 1:
The patent optimizes the height parameter of female inbred corn plants by using shorter varieties that maintain adequate reproductive capacity while improving land use efficiency. The reduced plant height increases standability and allows more effective use of available land area for seed production.
Data Source
AI summary
Methods for improving the efficiency and productivity of hybrid corn seed production are provided herein. Various methods to improve the transfer of pollen from male corn plants to female corn plants, and thus increase yield, are provided herein. Without being limiting, these methods include varying the height of male and female corn plants in a field, as well as varying the number, arrangement, and ratio of male-to-female rows in a field.