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Method for breeding new species by fusion between various plants and distant induced mutagenesis

A technology for new varieties and plants, which is applied in the field of mutual fusion and distant mutation of different species of plants to cultivate new varieties. It is difficult to select breakthrough varieties and other problems, so as to achieve the effects of fast and stable offspring traits, high scion utilization rate, and large leaf area

Inactive Publication Date: 2009-07-15
曹长义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the many scientific and technological factors that promote the increase of grain production, the contribution of breeding accounts for more than 1 / 3. However, at present, people mainly use conventional breeding technology, which has the following three defects: First, the breeding cycle is long, from hybridization to breeding It usually takes seven or eight years or even more than ten years for varieties; second, the efficiency is low, and dozens or even hundreds of hybrid combinations need to be prepared every year, and it is very good to be able to select a variety from them; third, the predictability is poor, and it is generally difficult to predict hybrid combinations The performance of the offspring, sometimes even if it is successful, does not understand the real reason
[0004] At present, the fusion mutagenesis between plants is basically carried out between varieties. Due to the close relationship between the parents and the lack of genetic gene pool, it is difficult to select breakthrough varieties, and there is no breakthrough change and improvement in their yield and quality per mu.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The method of the present invention is as follows: choose potato to make rootstock, and wheat is made scion; When potato grows 6-8 new leaves after planting 30 days, the soil around the root is scraped open, on the stem of 1.5cm above the root or the block below the root Prick a small hole with a bamboo stick; the wheat is pre-germinated, and when it grows to 10 cm and has 4-5 leaves, remove the root completely with a blade, insert it into the small hole of the rootstock, and then use moist soil with a water content of 60%. Cover the incision and the scion lightly. After 10-15 days, the scion and the rootstock are completely fused and start to grow. Keep the temperature at 10-25°C, and the scion absorbs nutrients through the rootstock to maintain life. After 20-25 days, the scion will grow a new one on the upper part of the fusion. The root grows into the ground and it is determined that the distant mutation is successful; 30 days later, the wheat starts to tiller, cut o...

Embodiment 2

[0036] The method of this embodiment is as follows:

[0037] Using the method of seed bud fusion, sweet potato is used as the rootstock and millet is used as the scion. When the sweet potato grows to 10-16 new leaves after 40-60 days of planting, the soil around the root is removed, and the root is 1.5cm above the root. On the block below, pierce a small hole with an iron nail or a bamboo stick; the millet is pre-germinated, and when it grows to 4 leaves, remove the root completely, insert it into the small hole of the rootstock, and then use moist soil with a water content of 70%. The incision and the scion are covered lightly. After 15-20 days, the scion and the rootstock are fully fused, and the scion begins to grow and absorb nutrients through the rootstock to maintain life. Within 20-30 days, the base of the stem will take root and enter the soil, the main stem of millet and the main stem of sweet potato will be completely integrated, and the long leaves on the stem of sw...

Embodiment 3

[0041] The method of the present embodiment comprises the following steps:

[0042]Use potatoes as rootstock and soybeans as scion. When potatoes are planted 40-60 days later, when the stem length reaches 30-50cm and 5-10 new leaves, remove the soil around the root and place it on the stem 1.5cm above the root or below the root. Prick a small hole on the block with iron nails or bamboo sticks; soybeans are germinated in advance, and when the height reaches 8-10cm and 4 leaves, after the root is completely removed, the lower part of the stem is cut into a wedge shape and inserted into the small hole of the rootstock. Then cover the incision and the scion gently with moist soil with a water content of 65%. After 15-20 days, the scion and the rootstock are fully fused, and the scion begins to grow and absorb nutrients through the rootstock to maintain life. Within 20-30 days, the base of the stem will take root and enter the soil, the main stem of soybean and the main stem of pot...

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PUM

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Abstract

The invention relates to a method for culturing new species by merging distant mutagenesis among various plants, which comprises the following steps: 1, the root or the tuberous stalk of a plant is selected as a parental stock; 2, the root of the selected plant is fully removed and used as a graft, and the fully root-removing part is a merging surface; 3, before the parental stock is merged, the merging surface is selected; 4, the graft and the parental stock are merged, the cross sections of the graft and the parental stock are tightly merged and aligned to form a layer; 5, a merging opening is fixed, the pierced part of the root or the tuberous stalk by an iron nail or a bamboo pegwood is fixed and covered by soil and compacted; 20 to 25 days later after mergence, the merging opening is healed, and tissue starts to merge; the graft starts to grow, a new root grows up at the merging opening 20 to 30 days later for facilitating the smooth growth, the blossom and the fructification of the graft, and a new species is mutagenized. In the distant adverse mutagenesis method, plants of different species are crossed and mutagenized by the distant mutagenesis, mutagenized offspring mutagenesis is far higher than natural mutagenesis, and the characteristics of the mutagenesis can be stably inherited. The method is simple to operate, has wide breeding material, rapidly stabilizes the offspring characteristics, accelerates the breeding process and is easy to generate new species and breeds.

Description

technical field [0001] The invention relates to a method for inter-plant fusion distant mutagenesis, in particular to a method for cultivating new varieties by mutual fusion distant mutagenesis of plants of different species. Background technique [0002] my country is a large agricultural country, and grain production occupies the most important position in my country's agricultural production. In food production, crop breeding undoubtedly plays a decisive and central role. The breeding of improved varieties in my country is the focus of agricultural development, and the breeding goal has shifted from the pursuit of high yield to the direction of high quality and special use; genetic resources and material innovation have become the focus of breeding research. Important content, the competition for resources has become the focus of competition in the agricultural industry; the use of heterosis in a wider variety of crops and at a higher level to achieve an organic combinatio...

Claims

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Application Information

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IPC IPC(8): A01H1/00A01G1/00A01G1/06
Inventor 曹长义曹永鹏曹瑞杰
Owner 曹长义
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