Breeding method of sweet and glutinous fresh corn variety
A technology for fresh-eating corn and waxy corn, applied in the field of fresh-eating waxy corn, can solve the problems of low starch content in seeds, unsuitable for quick-freezing processing, low seed germination rate, etc., improve the taste and quality, and meet the diversified needs of production and market. , the effect of high sugar content in grains
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Embodiment 1
[0040] Example 1 Breeding of sweet and waxy superior inbred lines
[0041] The present embodiment provides the breeding process of sweet and waxy excellent inbred lines, and the steps are as follows:
[0042] (1) Taking my country's excellent waxy maize variety Zhongnuo No. 2 as the basic material, self-crossed to obtain the S1 population. The superior strain was selected to continue selfing for one generation to obtain the S2 population.
[0043] (2) In the S2 population, the superior plants were selected and crossed with the super sweet waxy homozygous double crypto-backbone inbred line D6644, which was independently bred by the Maize Research Center of the Beijing Academy of Agriculture and Forestry, to obtain the first generation of hybrid seeds.
[0044] (3) Plant the first-generation seeds of the hybrid, and select the excellent individual plants with good growth, strong resistance and good greenness to carry out bagging selfing to obtain selfed ear.
[0045] (4) Selec...
Embodiment 2
[0050] Example 2 Breeding of sweet and waxy fresh corn hybrids 1
[0051] (1) Taking A in Example 1 as the male parent, and taking the backbone inbred line of Chinese waxy maize as the female parent, hybridization was performed to obtain hybrid seeds.
[0052] (2) To plant the above hybrids, first carry out comprehensive character identification, and select the combination with strong plants, dark green leaves, good greenness of bracts and strong resistance; further, at the milk maturity stage of the ear (20-26 day) to detect the sugar content of the grains, and identify the combination with a sugar content of more than 12%; further, 27-31 days after pollination of the ear, detect its water content, and identify the water content of the grains 31 days after pollination Still more than 50% of the mix.
[0053] (3) After the above detection and selection, an excellent variety Jingke Tiannuo 789 was bred. In the vegetative growth stage, the plants grew vigorously, and the plants...
Embodiment 3
[0056] Example 3 Breeding of sweet and waxy fresh corn hybrids 2
[0057] (1) Taking A in Example 1 as the female parent and the backbone inbred line of Chinese waxy maize as the male parent, hybridization was performed to obtain hybrid seeds.
[0058] (2) To plant the above hybrids, first carry out comprehensive character identification, and select the combination with strong plants, dark green leaves, good greenness of bracts and strong resistance; further, at the milk maturity stage of the ear (20-26 day) to detect the sugar content of the grains, and identify the combination with a sugar content of more than 12%; further, 27-31 days after pollination, the water content of the ear is detected, and it is identified that the water content of the grain is still 31 days after pollination. A combination of more than 50%.
[0059] (3) After the above detection and selection, an excellent variety H was selected, with strong plant growth, good greenness of plants and bracts, and s...
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