Propagation method of oil sunflower Xinkui No. 14 sterile line 1666A

A sunflower new sunflower, sunflower technology, applied in horticultural methods, botanical equipment and methods, applications, etc., can solve the problems of low seed purity and low yield, and achieve the effects of reducing artificial pollination, large pollen amount, and increasing yield

Inactive Publication Date: 2013-05-22
新疆康地种业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the low purity and low yield of seeds propagated by sunflower CMS for oil in the prior art, the present invention provides a breeding method for CMS 1666A of sunflower Xinkui No. 14 for oil, which utilizes space isolation and maintains CMS. The method of planting in proportion and then assisting pollination to reproduce the sterile line has greatly solved the problems of parental purity, yield and cost. It can not only ensure the purity, but also increase the reproductive yield, and it is a low-cost propagation method.

Method used

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  • Propagation method of oil sunflower Xinkui No. 14 sterile line 1666A

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Effect test

Embodiment 1

[0030] Embodiment one: the breeding of oil sunflower Xinkui No. 14 sterile line 1666A

[0031] (1) Site selection: Choose a field with isolation conditions that has not planted sunflowers in the past 4 years, and has no self-growing sunflowers; the isolation area of ​​the breeding field is set to be spatially isolated, and the isolation distance is not less than 5km. Sunflower plants ensure the purity of seeds; sunflowers are heterogeneous pollination crops, and insects are mainly used as the medium for pollen transmission. The effective flight distance of insects is used as the isolation distance, which is the premise to ensure the purity of the seeds of parental propagation. The greater the isolation distance, the higher the seed purity. Guaranteed; within the effective flight range of insects, the pollen passing through the insect vector will reduce the purity of the parents and the seeds will be mixed, and the smaller the distance, the lower the purity of the seeds.

[003...

Embodiment 2

[0045] Embodiment two: the verification effect of the breeding method of sunflower Xinkui No. 14 male sterile line 1666A for oil

[0046] By repeatedly implementing the propagation method of sunflower new sunflower No. 14 sterile line 1666A for oil provided by the embodiment, and in conjunction with the applicant's production practice for many years, it is learned that by implementing the oil sunflower new flower No. 14 sterile line 1666A provided by the application The breeding method obtains the following results of scientific practice:

[0047] The optimal row ratio of the sterile line and the maintainer line adopted is 6:2, which is not only conducive to the deployment of the planter, but the two rows of the maintainer lines are adjacent to each other, which is conducive to easy cutting of the maintainer line after flowering and prevents missed cutting. The pollen of the maintainer line can be suitable, and the pollination and seed setting rate of the sterile line can be...

Embodiment 3

[0051] Embodiment three: the verification effect of the breeding method of sunflower Xinkui No. 14 male sterile line 1666A for oil

[0052] For many years, by using the breeding method of sunflower Xinkui No. 14 CMS 1666A for oil provided by the present invention in Xinjiang Agricultural Tenth Division and other places, 70 mu of 1666A was propagated in the isolation area, and its isolation distance was about 7km, and the CMS maintainer was planted The ratio is 6:2. About one week before the flowering period, 23 boxes of bees are evenly distributed inside the seeding field. After harvesting and yield measurement, it is found that the yield per mu is significantly higher than that of artificial pollination in bagging, and the labor cost is less than half of that in bagging. Through the purity identification of its sterile line in Hainan: the purity of the parent is 100%. It shows that the propagation method of sunflower Xinkui No. 14 CMS 1666A for oil provided by the present i...

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Abstract

The invention discloses a propagation method of an oil sunflower Xinkui No. 14 sterile line 1666A. The propagation method comprises the following steps of: under the precondition of spatial isolation that no sunflower planting area exits 5km around an isolation area to be chosen, setting the proportion of sterile lines to maintainer lines to be 6: 2; irrigating once every 7 days before squaring stage of sunflower; and configuring a box of strong bee colony in every 0.2hm<2> of seed farm; and establishing a propagation method of oil sunflower sterile line through pollination. Through isolation propagation, the purity can be ensured, and the propagation yield is also improved; and the propagation method is relatively low in cost.

Description

technical field [0001] The invention relates to the technical field of plant propagation, in particular to the technical field of propagation of a sunflower sterile line for oil. Background technique [0002] sunflower( Helianthus annuus L. ) is one of the five major economic crops in the world. It has the characteristics of resistance to salt and alkali, drought and barrenness. It is also the main oil crop in northern my country. It is increasingly valued as an oil or protein resource. There are quite a few dry and barren low-yield fields and saline-alkali land in my country, so sunflower plays an important role in agricultural production. All countries in the world have generally carried out three-line research on the utilization of sunflower heterophylls. my country has carried out research on the utilization of sunflower heterozygous species since the 1970s, and began to use hybrids in agricultural production. [0003] Oil sunflower Xinkui No. 14, formerly known as Kan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01G1/00A01C1/08A01G7/06
Inventor 段维朱文彬
Owner 新疆康地种业科技股份有限公司
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