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Method for cultivating new species of super-high-yield wheat

A breeding method and technology for new varieties, applied in botany equipment and methods, seed and rhizome treatment, horticulture, etc., can solve the problems of inconvenient research and perfection, and achieve the effects of shortening breeding time, high light efficiency, and high yield

Inactive Publication Date: 2014-12-03
曹洪青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Corn is a plant with good drought resistance and high light efficiency. Therefore, hybridizing wheat and corn to make wheat have the drought resistance and high light efficiency of corn is an effective way to increase wheat yield. However, since the hybridization of wheat and corn is an interfamily Distant asexual hybridization, so there are not many successful examples, and wheat is planted in winter and spring, and corn is planted in spring and summer, which brings a lot of inconvenience to the further research and improvement of this technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. After the wheat breaks sleep and accelerates germination, put it into a low-temperature germination box above 0 degrees for forced vernalization. After 35 days, the forced vernalization of wheat is completed. At this time, the wheat is in the seedling stage and the height is 3 cm;

[0025] 2. The corn seeds germinate and become seedlings, and the corn seedlings are cultivated for 35 days, and grow to the outcrop of the third leaf sheath;

[0026] 3. Move the wheat seedlings and corn seedlings to a windless and sterile intelligent climate control room. The temperature in the intelligent climate control room is kept at about 20 degrees and the humidity is 50%. Use a sterilized blade to cut off the wheat from the tiller joints and keep the wheat The upper part of the tiller node is used as a scion, and the cut part of the wheat is sterilized with 95% absolute alcohol;

[0027] 4. Use corn seedlings as rootstocks. Use a 1.5mm drill to drill a grafting hole between the se...

Embodiment 2

[0036] 1. After the wheat breaks sleep and accelerates germination, put it into a low-temperature germination box at 3 degrees for forced vernalization. After 40 days, the forced vernalization of wheat is completed. At this time, the wheat is in the seedling stage and the height is 3 cm;

[0037] 2. The corn seeds germinate and become seedlings, and the corn seedlings are cultivated for 40 days, and grow to the outcrop of the third leaf sheath;

[0038] 3. Move the wheat seedlings and corn seedlings to a windless and sterile intelligent climate control room. The temperature in the intelligent climate control room is kept at about 30 degrees and the humidity is 90%. Use a sterilized blade to cut off the wheat from the tiller joints and keep the wheat The upper part of the tiller node is used as a scion, and the cut part of the wheat is sterilized with 95% absolute alcohol;

[0039] 4. Use corn seedlings as rootstocks. Use a 1.5mm drill bit to drill a grafting hole between the s...

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Abstract

The invention discloses a method for cultivating a new species of super-high-yield wheat. The method includes the steps that (1) mandatory vernalization is conducted on wheat after dormancy breaking and accelerating germination are conducted till the wheat grows to three centimeters in height; (2) corn seedlings grow till the third section of leaf sheath exposes the head; (3) the wheat is cut off from the position of the tillering node through a disinfection blade, and the upper portion of the wheat tillering node serves as cion; (4) a grafting hole is formed in the middle of the second leaf sheath and the third leaf sheath of each corn seedling in a drilled mode; (5) the cion is inserted into the grafting hole; (6) the corn seedlings are transferred to a nutrition cultivation box to be cultivated for 30-35 days and are sprayed with water, and foliage dressing is conducted on the corn seedlings; (7) the corn seedlings are transferred to an artificial intelligent climate chamber, and corn seeds and wheat seeds can be harvested three months later; (8) grafting backcross with the corn is conducted on half the wheat seeds, and sub-secondary-generation seeds are obtained; (9) grafting backcross with the corn is conducted on half the sub-secondary-generation seeds, and sub-third-generation seeds are obtained. According to the method, broken root regeneration of allopolyploid wheat is utilized to cultivate a high-lighting-effect super-high-yield wheat new species, and the wheat new species is made to have better drought resistance and a high lighting effect so as to increase yield of the wheat.

Description

technical field [0001] The invention relates to the technical field of wheat breeding, in particular to a method for cultivating a new super-high-yielding wheat variety. Background technique [0002] Wheat is one of the three major grains. It is a major food crop widely planted in the world. Almost all of its output is used as food. However, about 70% of wheat is distributed in arid and semi-arid areas. Drought has a wide and serious impact on wheat. It can simultaneously affect the physiological metabolic processes of wheat such as photosynthesis, respiratory metabolism, water status and changes in various enzymes. Therefore, research on wheat drought resistance and drought-resistant wheat breeding have become one of the important topics in the world today. Faced with the increasing population pressure and the current situation of water resources shortage, dryland wheat breeding, drought-resistant, water-saving, high-yield and high-quality wheat varieties will be an effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G1/06A01C1/00
Inventor 曹洪青
Owner 曹洪青
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