Hybrid corn seed

A hybrid, corn technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., to achieve the effects of strong disease resistance, high yield and good quality

Inactive Publication Date: 2012-08-01
HULUDAO CITY SEED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seed solves the technical problems of corn hybrid planting traits, yield and quality by selecting and cultivating parents and mating parents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Parental Selection Breeding:

[0010] Female parent: American PN78599 corn hybrid was selected as the female parent provenance, and after 8 generations of self-breeding, it was used as the female parent of the corn hybrid.

[0011] The bred female parent has high combining ability, stable growth traits, resistance to spot disease, head smut, rust and lodging. It has the characteristics of medium and late maturity hard grains.

[0012] Male parent: JD142, the LX9801 inbred mutant was selected as the male parent's provenance, and after 8 generations of continuous selection and self-breeding, it was used as the male parent of the corn hybrid.

[0013] The selected male parent has good combining ability, long ear, resistance to smut, middle-late maturity and moderate ear position.

[0014] The male parent is crossed with the female parent to produce a hybrid generation, which is used as corn seed for planting.

[0015] Planting Effect Test of Hybrid Maize Seeds

[0016]...

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PUM

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Abstract

The invention relates to a hybrid corn seed in the field of crop seed culture. An American PN78599 corn hybrid serves as a female parent seed source and undergoes 8-generation selfing breeding so as to serve as a female parent of the corn hybrid, and the seed source code is W909-1. An LX9801 selfing line variant is chosen to serve as male parent seed source and undergoes 80-generation continuous roguing selfing breeding to serve as a male parent of the corn hybrid, and the seed source code is JD142. A hybrid generation is generated by hybridization of the the male parent and the female parent to serve as the hybrid corn seed. The hybrid corn seed has the advantages of strong disease resistance, resistance to lodging, high yield and good quality. The hybrid corn seed is suitable for application as a summer seeding corn seed.

Description

technical field [0001] The invention relates to a hybrid corn seed in the field of crop seed cultivation. Background technique [0002] Corn hybrids are commonly used in the field of agricultural seeds, but due to the different sources of corn hybrids, the genetic characteristics are different, resulting in differences in yield, quality, and growth and development traits, thus affecting the first generation of hybrids output and quality. Contents of the invention [0003] In order to provide a corn hybrid parent capable of disease resistance, stable growth characteristics and high combining ability, the invention provides a hybrid corn seed. The seed solves the technical problems of planting traits, yield and quality of corn hybrids by selecting and cultivating parents and matching parents. [0004] The scheme that the present invention solves technical problem adopts is: [0005] Female parent: American PN78599 corn hybrid was selected as the female parent provenance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 田丰杨继新王瑞芹张晓民鲍浩然
Owner HULUDAO CITY SEED
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