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Oat crossbreeding method

A technology of hybrid breeding and oats, which is applied in botany equipment and methods, plant genetic improvement, animal repellents, etc., can solve the problems of low seed setting rate of oat hybridization, improve pollen vigor, maintain stability, and increase seed setting rate Effect

Inactive Publication Date: 2019-12-31
ZHANGJIAKOU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low seed setting rate of existing oat hybridization, thereby providing an improved hybrid breeding method suitable for the main genetic characteristics of Chinese oat varieties

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0031] Described a kind of oat crossbreeding method, its specific steps are as follows:

[0032] S1: Select Bayan No. 7 peeled oats as the male parent, and Bayou No. 3 naked oats as the female parent, and cultivate them separately. Place the flowerpot on the seedbed and pour water thoroughly, make a seed hole with a diameter of 1cm and a depth of 2cm in the nutrient soil of the flowerpot, after sowing a seed in each hole, smooth and water, after emergence, every 15 Water once a day, when the height of the seedlings is 20cm, continue to cultivate after installing the seedling frame, the male parent oats are cultivated to just the initial flowering stage, and the female parent oats are cultivated until the top has 3-5 spikelets to expose the flag leaves. Said nutritious soil is obtained by 50% proportioning of fine sand and peat soil, fully stirred, then sterilized by high pressure steam and cooled;

[0033] The main characters of the oats of the male and female parents were in...

Embodiment 2

[0066] Described a kind of oat crossbreeding method, its specific steps are as follows:

[0067] S1: Select Bayan No. 7 peeled oats as the male parent, and Ji Zhangyan No. 9 peeled oats as the female parent, and cultivate them separately. The breeding method of the male parent and the female parent is: in early April, fill the nutrient The flower pot of the soil is placed on the seedbed and watered thoroughly, and a seed hole with a diameter of 1 cm and a depth of 2 cm is punched in the nutrient soil of the flower pot. After a seed is sown in each hole, it is smoothed and watered. Water once in 15 days, when the seedling height is 20cm, continue to cultivate after installing the seedling rack, the male parent oats are cultivated to just the initial flowering stage, and the female parent oats are cultivated until the top has 3-5 spikelets to expose the flag leaves. In the present embodiment, The nutritive soil is obtained by fine sand and peat soil in a ratio of 50%, fully stir...

Embodiment 3

[0083] Described a kind of oat crossbreeding method, its specific steps are as follows:

[0084] S1: Select Baiyan No. 2 naked oats as the male parent, and Bayou No. 3 naked oats as the female parent, and cultivate them separately. Place the flower pot on the seedbed and pour water thoroughly, make a seed hole with a diameter of 1 cm and a depth of 2 cm in the nutrient soil of the flower pot, after sowing a seed in each hole, smooth and water, after emergence, every 15 Water once a day, when the height of the seedlings is 20cm, continue to cultivate after installing the seedling frame, the male parent oats are cultivated to just the initial flowering stage, and the female parent oats are cultivated until the top has 3-5 spikelets to expose the flag leaves. Said nutritious soil is obtained by 50% proportioning of fine sand and peat soil, fully stirred, then sterilized by high pressure steam and cooled;

[0085] The main characters of the oats of the male and female parents wer...

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Abstract

The invention discloses an oat crossbreeding method. The method includes steps: selecting different oat varieties as male parents and female parents, culturing the male parents right to an initial flowering stage, and culturing the female parents until 3-5 top spikelets are exposed outside flag leaves; selecting strong plants from the cultured female parents, stripping all spikelets of plants, cutting 1 / 2 of the spikelets, removing kernels and glumes in the spikelets to keep outmost kernels and glumes, removing stamens, and fixing; selecting ears cut from highest joints of the cultured male parents; performing pollination on the ears of the male parents and the female plants in a same transparent bags, continuing culturing, and collecting seeds of the female plants to obtain oat hybrid seeds. By improvement of a hybridization method, a crossbreeding technique suitable for main hereditary characters of oat varieties in China is provided, and the setting percentage of hybrid oat is increased while yield stability and resistance are improved.

Description

technical field [0001] The invention belongs to the technical field of oat breeding, in particular to an oat hybrid breeding method. Background technique [0002] Oat is a crop of the genus Avena in the Gramineae family. According to whether the grain has paddy or not, it can be divided into hull oat and naked oat. Most of our country grows naked oats (naked oats), and its seeds are mainly used for food. It is an indispensable nutritious food for people in the producing areas and is also the main raw material of oatmeal. The straw can be used as forage or feed. With the improvement of people's living standards and awareness of the nutritional and health effects of oats, oats have not only become people's consumption rations, but also functional foods for people to balance nutrition and implement a scientific diet. In recent years, the consumer demand for oats as a balanced diet, nutrition and health care has grown rapidly, and the planting area has continued to expand, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01N65/44A01N37/44A01N59/08A01P21/00
CPCA01H1/02A01N65/00A01N65/44A01N37/44A01N59/08
Inventor 周海涛张新军李天亮杨晓虹刘文婷曹丽霞李云霞左文博白静赵艳格赵世锋刘君馨王英
Owner ZHANGJIAKOU ACAD OF AGRI SCI
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