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Method for improving quality of fresh corn by utilizing pollen sharing technology

A technology of fresh corn and technology, which is applied in the field of improving the quality of fresh corn by using pollen sharing technology and improving the quality of fresh corn. Effect

Active Publication Date: 2018-10-16
ZHANG JIAKOU YESCORN SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The corn ears of this inbred line have better sweetness, but poor waxiness

Method used

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  • Method for improving quality of fresh corn by utilizing pollen sharing technology
  • Method for improving quality of fresh corn by utilizing pollen sharing technology
  • Method for improving quality of fresh corn by utilizing pollen sharing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The inbred line whose genotype is sh2sh2wxwx is used to cross the inbred line of common waxy corn (SH2SH2wxwx), and the varieties with good resistance, high uniformity and good quality are selected. The process is as follows:

[0055]

[0056] The offspring of this variety show sweet waxy corn, that is, sweet waxy grains: glutinous grains = 1:3, and the specific phenotypes are shown in Table 1:

[0057] Table 1 Phenotypes of SH2sh2wxwx self-bred offspring

[0058]

[0059] The sh2sh2wxwx double recessive genotype obtained above is used as pollinator (pollinator, also called male parent), and the SH2sh2wxwx waxy maize genotype is receptor (receiver, also called female parent), so that the maize produced by the contemporary recipient Sweet glutinous grains of ears: glutinous grains ≥ 1:3 (up to 1:1, no pollen from the receptor itself is used at all). Since the genotype of the receiver (receiver) is SH2sh2wxwx, two genotypes SH2sh2wxwxt and sh2sh2wxwx appear in the...

Embodiment 2

[0063] Use double recessive (sh2sh2wxwx includes but not limited to this super sweet corn gene, other sweet corn genes can also be made into double recessive sweet waxy corn hybrids and inbred lines) as the receiver (receiver), use the same Genotypes of sweetened waxy corn (genotype SH2sh2wxwx, including but not limited to SH2sh2, other sweet corn gene hybrids are also included, as long as the sweet corn genotype is consistent with the recipient) can be used as pollinators. After using SH2sh2wxwx as the pollinator and sh2sh2wxwx as the recipient for pollination, the phenotypes of the genotype progeny in the recipient's ear are shown in Table 3:

[0064] table 3

[0065]

[0066] The genotypes of the offspring are SH2sh2wxwx and sh2sh2wxwx; under the premise of completely using the pollen from the pollinator, the sweet glutinous grains of the ears of the offspring: glutinous grains = 1:1 (statistical data, the actual situation is based on the development of the recipi...

Embodiment 3

[0068] Taking the method of Example 1 as an example, the sh2sh2wxwx double recessive genotype is selected as the pollinator, the SH2sh2wxwx waxy corn genotype is the recipient (Jingke Nuo 928), and the pollen of the pollinator is fully adopted; the pollinator and the recipient are mixed planted, According to the plant ratio of 1:3, there must be more than 300 meters of isolation space from other corn during planting, more than 40 days for spring sowing, and at least 30 days for summer sowing; Waxy grains: glutinous grains = 1:1 (overall statistical data), and the pollinator corn ears are all sweet waxy grains, which can increase the yield and increase the variety of products when harvesting. Put the ears of corn harvested on the receptor into freezing and steaming conditions, and it can be clearly seen that the waxy grains are waxy, plump and opaque, and the sweet waxy grains are darker and grayer due to their low starch content. Specifically See figure 1 ; Simultaneously det...

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Abstract

The invention belongs to an agricultural new variety breeding technology and relates to a method for improving the quality of a fresh corn by utilizing a pollen sharing technology. The method comprises the following steps: 1) selecting a sweet-glutinous corn with double recessive sweet gene and glutinous gene types for one of parents; 2) selecting a glutinous corn with the same gene type for the other parent; and 3) carrying out cross pollination between the parents to obtain a corncob. According to the method, the sweet-glutinous corn with the same gene type is selected, and a cross pollination way is adopted, so that the fresh corn of which sweet-glutinous kernels and glutinous kernels are in an appropriate proportion is achieved according to a desired requirement, and the aim of perfectly unifying sweetness and glutinousness is achieved.

Description

technical field [0001] The invention belongs to the breeding technology of new agricultural varieties, and relates to a method for improving the quality of fresh corn, in particular to a method for improving the quality of fresh corn by using pollen sharing technology. Background technique [0002] Fresh corn refers to young tender corn with special flavor and quality, also known as fruit corn. Compared with ordinary corn, it has the characteristics of sweetness, glutinousness, tenderness and fragrance. At present, China's fresh corn generally only refers to sweet corn (including various types of sweet corn such as ordinary sweet corn, enhanced sweet corn and super sweet corn), waxy corn [referring to corn grains in which 100% of the starch components are amylopectin (Chinese type ), 96% of the starch components are amylopectin (Argentine type)] and sweetened waxy corn (there are both waxy corn kernels and sweet waxy corn kernels in the corn kernels). [0003] At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H5/10
CPCA01H1/02A01H5/10A01H6/4684
Inventor 宋国宏
Owner ZHANG JIAKOU YESCORN SCI & TECH CO LTD
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