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Method for solving flowering asynchronism of distant hybridization of sorghum bicolor and sorghum sudanense

A technology of short-lived hybridization and distant hybridization, which is applied in horticultural methods, botanical equipment and methods, lawn growth, etc., can solve the problem of poor flowering of sorghum sterile lines and sudangrass distant hybridization, and cannot accurately adjust sorghum sterile lines and sorghum sterile lines. The problems such as the lack of flowering period of the distant hybrids of Sudan grass have achieved the effect of solving the phenomenon of no harvest of hybrids, promoting the exchange of genetic resources, and expanding the time range.

Active Publication Date: 2021-03-12
DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes a method to solve the problem that the flowering period of the sorghum sterile line and the distant hybridization of sudan grass cannot be precisely adjusted in the prior art.

Method used

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  • Method for solving flowering asynchronism of distant hybridization of sorghum bicolor and sorghum sudanense
  • Method for solving flowering asynchronism of distant hybridization of sorghum bicolor and sorghum sudanense

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Effect test

Embodiment 1

[0025] In 2018, at the Dry Agricultural Research Institute of the Department of Agriculture and Forestry, Hebei Province, the Sorghum Infertility, H1076A and the Sudanese HS-722 were used in the same period on May 16, by observing the normal fertility process It was found that the H1076A is expected to flow a period of 14 days earlier than HS-722, and the flowering period does not have normal flowers; in this scenario, through the moderation of the sorghum infertility h1076a, it will meet, specifically The adjustment measures are: On July 4th, when the sorghum inletation 1076a reached the header period, the H1076A's duty stalk was cast to 2cm place, branching ear in July 28 The day is again headed again, and on August 5th reached a stage, at this time, the Sudanese HS-722 tillers were in a flowering period, thus achieving the purpose of the flowering period, and the hybrid combination configuration was smooth.

[0026] Table 1 Flower regulation method in the case of sorghum inleta...

Embodiment 2

[0030] In 2018, in the Dry Agricultural Research Institute of the Department of Agriculture and Forestry, Hebei Province, the Sorghum Infertility, BMR14A and the Sudanese BMR-S145, based on the same period of Sino-BMR-S145, which was planted on May 16, by observing its normal birth process It was found that the BMR-S145 blossoms were expected to be 8 days earlier than BMR14A. Then the Sudanese Presduter Stems and the sorghum infertility can not meet, in order to meet the tillers and sorghum infertility, the specific regulation measures are: at 7 On the 20th of the month, when the Sudanese BMR-S145 reached the header period, the BMR-S145 main stems were cast in time. At 15cm from the ground, all of the BMR-S145 main stems were all cast, and the stimulation of tillers accelerates growth, and tillering. On August 4th, it reached a stage, and at this time, the Sorghum Infertility BMR14a is about to meet the flowers, the flowering period, and the hybrid combination configuration is smo...

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Abstract

The invention relates to the technical field of pasture variety breeding, and provides a method for solving flowering asynchronism of distant hybridization of sorghum bicolor and sorghum sudanense. The method comprises the following steps: cutting a main stem of the sorghum bicolor to induce generation of a new branch spike, and performing flowering by using the branch spike to achieve flowering synchronization; or adopting a new method of performing full cutting on the main stem of the sorghum sudanense to induce tillering ears to rapidly grow. A new method of achieving flowering synchronization by utilizing the tillering ears to bloom can be directly applied to adjustment of the flowering asynchronism during distant hybridization of the sorghum bicolor and the sorghum sudanense, and theproblem that in the prior art, the flowering asynchronism of distant hybridization of the sorghum bicolor and the sorghum sudanense cannot be accurately adjusted, is solved.

Description

Technical field [0001] The present invention relates to the field of breeding breed breeding technology, which relates to high-dopping parental hybrid breeding techniques. Specifically, a method involving a solution to solving sorghum inletation and Sudanese farm hybrids. Background technique [0002] The far-demy hybrids are of great significance in the field of breeding, using remote hybridization, can study biological evolution and intimate relationship, prove the law of species development; use long-term hybrids, you can use exogenous genetic substances to enrich species genetic foundation, you can create new species, such as Sorghum - Sudanese Grass Hybrid (High Danthara). Sorghum Bicolor × Sorghumsudanense is a sorghum infertility (Sorghum Bicolor (L.) Moench and the far edge of Sorghum Sudanense (Piper), sorghum and Sudanese grass are classified. Different species in the same belong to different sub-seeds, there is currently controversial, but their chromosome (2n) is 20; ...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01G20/00A01G7/06
CPCA01G22/20A01G20/00A01G7/06
Inventor 李源游永亮赵海明武瑞鑫刘贵波彭海成
Owner DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI
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