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Method for fostering magenta maize inbred line and breeding method for cenospecies therefrom

A cultivation method and technology of inbred lines, which are applied in the field of crop breeding, can solve the problems of single corn kernel color, red-purple corn inbred lines and their hybrid breeding methods have not been seen before, and achieve good quality, maintain youthful vigor, The effect of preventing cell aging and destruction

Inactive Publication Date: 2004-11-17
孙宽修
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of people's living standards, people who are tired of eating refined grains pay more attention to the supplement of coarse grains to increase various nutrients in the body. Various foods made from corn are also popular among people, but the grain color of corn is single , the nutrient composition is roughly the same, corn breeding began in the 1960s, and some high-quality corn inbred lines and hybrids have been successfully cultivated, but the breeding methods of red-purple corn inbred lines and their hybrids have not been seen so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1, from the red-purple farm varieties in Tibet, the ear ears were covered with sulfuric acid paper bags, and the tassels were covered with kraft paper, and artificial self-pollination was used. After repeated 6 years, a red-purple corn one-ring system was proposed, namely Tibetan Hongli; after 10 years of repeated artificial self-pollination of female and male panicle bagging from a Yugoslavian single cross, a bicyclic system was proposed, namely Nan 3-2; Nan 3-2 was used as the female parent and Nan 3-2 as the father Ben, after 8 years of putting sulfuric acid paper bags on the female ears and kraft paper bags on the male tassels, repeated artificial backcrossing, a red-purple corn inbred line was obtained, which inherited all the advantages of the parents, that is, the grain color is red-purple , the plant height is about 1.5 meters, the leaves are raised, and it is resistant to large and small leaf spot and bacterial wilt, and has strong combining ability. The...

Embodiment 2

[0012] Embodiment 2, with the red-purple corn inbred line of Example 1 as the female parent, with the yellow 502 corn inbred line as the male parent, hybrid combination, the first generation of seeds is sown in the next year, and 60-70% of them are red when harvested. Purple, 30-40% belong to yellow. It was found that there were two red-purple ears in the male parent of yellow. For the two red-purple inbred lines, the male and female ears were bagged and artificially self-pollinated, repeated for 3 years, and the seed Sex is stabilized, and red-purple corn inbred line is obtained, except that the plant height is 1.7 meters, other characteristics are all the same as in Example 1.

Embodiment 3

[0013] Example 3, using the red-purple corn inbred line in Example 1 as the female parent, red-purple is a dominant gene with extremely strong heritability, it is combined with the yellow 502 male parent, and the first-generation species obtained are all red-purple, belonging to Early maturity is suitable for summer sowing seeds, sowing in the next year, when harvested, 60-70% are reddish purple, like the female parent, and 30-40% are yellow, like the male parent.

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PUM

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Abstract

The invention discloses a method for cultivating selfing lines of royal purple corns and the breeding method of the hybrid, which comprises, extracting a ring system form the farm household variety of the royal purple corns, i.e. safranine grains, using the safranine grains as female parent, using south 3-2 selfing line as the farther parent, backcrossing in repetition, thus obtaining royal purple corn selfing line, or using royal purple corn selfing lines as mother parent, using yellow corn selfing line as the farther parent, backcrossing in repetition, thus obtaining royal purple corn selfing line again, using royal purple corn selfing lines as mother parent, using any one kind of corn selfing line as the farther parent for hybrid preparation.

Description

(1) Technical field: [0001] The invention relates to the technical field of crop breeding, in particular to a breeding method for red-purple corn inbred lines and a breeding method for hybrids thereof. (two) background technology: [0002] Today's society has entered a scientific and civilized society, and people's lives are beginning to develop towards high quality. To live a long and healthy life, you must update your health concept, master health knowledge, adopt a healthy lifestyle, and advocate food supplements for some diseases caused by deficiencies. 3. Diet therapy is more important than medicine tonic therapy. Corn is one of the main food crops in our country and has a very broad market. Its grain color is generally yellow or white. With the continuous improvement of people's living standards, people who are tired of eating refined grains pay more attention to the supplement of coarse grains to increase various nutrients in the body. Various foods made from corn ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 孙宽修孙德强
Owner 孙宽修
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