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Cyperus esculentus breeding method and breeding equipment

A technology of oily bean and seeds, applied in the field of breeding, to achieve the effects of reasonable structure design, convenient breeding operation, and increased genetic heterogeneity

Pending Publication Date: 2021-01-08
COTTON SCI RES INST OF HUNAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But also do not see in the prior art the method that adopts chemically induced oily bean breeding

Method used

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  • Cyperus esculentus breeding method and breeding equipment
  • Cyperus esculentus breeding method and breeding equipment

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Embodiment 1

[0022] The oily sedge bean breeding method of the present embodiment specifically comprises the steps:

[0023] (1) Parent selection: Select the representative oily bean variety seeds with excellent yield and quality as the parents, where the excellent quality means that the oil content of the seeds is above 25%;

[0024] (2) DES mutagenesis treatment: put the selected seeds into the breeding equipment of the present invention for mutagenesis treatment, that is, put the seeds into the seed placement tank 12, and loosen the bolts to move the fixing ring 9 to the bottom of the nozzle 6 , then tighten the bolt 10 so that the fixing ring 9 is fixed, pour 1% sodium hypochlorite solution in the transition zone 1.1, start the micro-water pump 3, spray 1% sodium hypochlorite on the surface of the parent seeds through the nozzle 6, and carry out surface sterilization of the parent seeds for 10 minutes , turn off the miniature water pump 3, and 1% sodium hypochlorite permeates through t...

specific example

[0029] In 2015, 3 varieties with an yield of more than 450KG per mu (dry weight of tubers) and seed oil content of 25-30% were selected from a batch of oilsha bean resources collected in Heilongjiang, Shandong, Sichuan and other places, combined with field performance and yield The results of yield measurement showed that those with relatively higher yield and higher oil content were subjected to radiation mutagenesis. Put the selected seeds into the above-mentioned breeding equipment for mutagenesis treatment (first sterilize the surface of the seeds with 1% sodium hypochlorite for 10 minutes, and then soak the seeds with 0.3% diethyl sulfate for 10-13 hours); After rinsing, it is planted in field holes, 1 seed per hole, and a single plant is selected after maturity. In 2016-2017 (M2, M3 generations), excellent lines are continuously selected in the field, and the M4 generation will be propagated in Sanya, Hainan in 2018. In 2019 By 2020, the strains with excellent M5 will be...

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Abstract

The invention discloses a cyperus esculentus breeding method. Cyperus esculentus variety seeds with yield, excellent quality and representativeness are selected as parents, then the parents are treated by adopting a DES mutation method, the mutated seeds are sown in the field, excellent single plants with mutation characters are selected from M2 and M3 generations, generations are added in off-Season multiplication, 3-5 generations continue to be selected till cyperus esculentus strains with stable characters are selected out, finally variety comparison test identification is carried out on the selected strains, and new cyperus esculentus varieties with excellent comprehensive characters and outstanding mutation characters are bred out by considering three comprehensive characters of yield, quality and stress resistance. The DES mutation breeding method is applied to cyperus esculentus variety breeding for the first time, target characters can be highlighted easily, and the advantagesof increasing the genetic heterogeneity of the target characters, remarkably shortening the breeding period and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of breeding, in particular to a method and equipment for breeding oily bean. Background technique [0002] Oil sedge beans, also known as tiger nuts, are native to Africa and countries along the Mediterranean Sea. They are annual plants of the Poaceae family and are highly adaptable. They were introduced from China and planted in Heilongjiang, Beijing, Hebei, Hunan, Shandong, Sichuan and other places. Oily bean is a high-quality, high-yielding, multi-purpose crop of oil and grain with high comprehensive utilization value, and it is also an ornamental plant. Planting 1 mu of oily bean is equivalent to 7-10 acres of rapeseed, and the oil content of oily bean is as high as 35%. , and the oil quality is good, rich in unsaturated fatty acids. However, there is a shortage of oily bean varieties suitable for planting in my country, which cannot meet market demand. [0003] Mutation breeding is the use of physical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/06A01H1/04
CPCA01H1/06A01H1/04
Inventor 李玉芳杨春安陈庭舟赵瑞元肖才升
Owner COTTON SCI RES INST OF HUNAN
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