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Good quality, high yield, disease-resistant and wide adaptation ultra-sweet corn breeding method

A technology of super sweet corn and sweet corn, which is applied in botany equipment and methods, plant products, plant genetic improvement, etc. It can solve the problems of low yield, low quality, and weak resistance, and achieve wide adaptability and high sugar content. Tall, thin-skinned effect

Inactive Publication Date: 2008-10-22
广东省农科集团良种苗木中心
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the inbred line selected by the above inbred line breeding method or high yield, strong resistance but not high quality or high quality but low yield, low resistance, poor adaptability, the purpose of the present invention is to provide a high-quality, high-yield , disease-resistant, and widely suitable super-sweet corn breeding method, this method improves the breeding method of sweet corn inbred lines, and breeds sweet corn with excellent comprehensive traits

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  • Good quality, high yield, disease-resistant and wide adaptation ultra-sweet corn breeding method
  • Good quality, high yield, disease-resistant and wide adaptation ultra-sweet corn breeding method

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Embodiment 1

[0024] 1. Breeding of high-yielding, disease-resistant, wide-fitting, high-quality male parent inbred line '013', see male parent breeding for details figure 1 .

[0025] In order to breed a male parent inbred line with strong adaptability, the spring stubble planting time from the F2 generation is May 15, and the plants that can flower and pollinate normally at a temperature above 32°C are selected for selfing or hybridization; the autumn stubble planting time is October On the 15th, select plants that can flower and pollinate normally at 17°C for selfing or hybridization.

[0026] (1) In the spring of the first year, F1 seeds were obtained by crossing SC011, a tropical sweet corn resource from Thailand, with SC056, a temperate sweet corn resource from the United States. Plant 20 hybrid progeny plants in autumn, select 3 plants that grow robustly, taste sweet, and have no bald spikes for self-crossing, and obtain F2 generation seeds.

[0027] (2) 723 F2 generation plants we...

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Abstract

The invention pertains to a crop breeding field, and discloses a breeding method of super sweet corn with good quality, high yield, disease resistance and wide adaptability. the method adopts polycross method and integrates the good properties of tropical and temperate sweet corns and common corn to breed a male parent inbred line with high yield, disease resistance, wide adaptability, good quality and strong association; the method also adopts pedigree selection method to breed an excellent female parent inbred line so as to breed the super sweet corn with good quality, high yield, disease resistance and wide adaptability. The corn has the advantages of thin peel, high content of sugar, high yield, disease resistance and wide adaptability, etc.

Description

technical field [0001] The invention belongs to the field of crop breeding, in particular to a breeding method for high-quality, high-yield, disease-resistant and widely suitable super sweet corn. Background technique [0002] There are generally three methods for the selection of sweet corn inbred lines: one is the hybrid breeding method: the sweet corn inbred line is used to cross the common corn inbred line, and then the sweet corn inbred line is selected from the hybrid offspring; Cross breeding method: the sweet corn inbred line with target traits is used as the non-recurrent parent, and the common corn inbred line is used as the recurrent parent, and the target traits of sweet corn are transferred to common corn by backcrossing, and the sweet corn self-bred line is bred. Intercourse. The third is direct line selection method: sweet corn inbred lines are bred from sweet corn landraces and single-cross varieties through pedigree method. The inbred lines bred by the abo...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01H5/00
Inventor 郑锦荣
Owner 广东省农科集团良种苗木中心
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