Sinorhizobium meliloti and application thereof

A technology of Rhizobium alfalfa and Sinorhizobium, applied in the field of agricultural microbiology, can solve the problems of low per unit yield and low nodulation rate, and achieve the effects of increasing plant height and yield, increasing nodulation rate, and improving nitrogen fixation efficiency

Inactive Publication Date: 2016-05-04
DAQING BRANCH OF HEILONGJIANG ACAD OF SCI
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Problems solved by technology

[0004] Although the current domestic alfalfa has the advantage of being more suitable for domestic planting, but is facing the si...

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  • Sinorhizobium meliloti and application thereof
  • Sinorhizobium meliloti and application thereof
  • Sinorhizobium meliloti and application thereof

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Embodiment Construction

[0032] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0033] The invention provides a strain of Rhizobium meliloti and application thereof, specifically comprising the following two parts:

[0034] 1. Screening and identification of Rhizobium meliloti:

[0035] 1. The strain described in the present invention is a rhizobia alfalfa isolated and screened from the saline-alkali soil in Daqing City, Heilongjiang Province. The bacterium was identified as a strain of Sinorhizobium meliloti and named SD101. Cultivated in an aerobic environment, the surface of the medium grows, and the colony is roughly round, w...

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Abstract

The invention discloses sinorhizobium meliloti and application thereof and belongs to the field of agricultural microorganism application. The sinorhizobium meliloti is preserved in the Common Microorganism Center of China Committee for Culture Collection of Microorganisms, the preservation number is CGMCC No. 11589, the preservation date is 25, November, 2015, and the preservation address is No. 3, courtyard 1, Beichen Rd, Chaoyang District, Beijing City. Through combined use of a sinorhizobium meliloti microbial agent and a protective agent, the nodulation rate and yield of domestic medicago sativa can be remarkably raised, and in particular, the nodulation rate of the domestic medicago sativa at the seedling stage is remarkably raised. Raising of the nodulation rate at the seedling stage shows that the sinorhizobium meliloti can enhance nodulation fixation rate and competitiveness of the inoculation microbial agent. Meanwhile, as the nodulation rate is raised, nitrogen fixation efficiency is also improved, and the plant height and yield are remarkably increased.

Description

technical field [0001] The invention belongs to the application field of agricultural microorganisms, and relates to a rhizobia strain of alfalfa and a method for improving the nodulation rate and yield of domestic alfalfa by using the same. Background technique [0002] Alfalfa (Medicagosativa) is a perennial herbaceous leguminous plant. Because of its strong stress resistance, wide distribution, large cultivation area, high yield, good quality, multiple utilization methods, good palatability and high economic value, it has the advantages of other legumes. There are many advantages that pasture cannot match. At the same time, it is also the earliest and most widely distributed leguminous forage in the world, and it can be called the "king of forage". There are 65 varieties of Medicago in the world, and in my country there are mainly: wild species, local varieties, bred varieties, introduced varieties and annual species. Alfalfa is mainly distributed in Europe, Asia and Af...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12R1/01
CPCC12N1/205C12R2001/01
Inventor 石杰高宇孙宇峰刘宇峰张正海刘淑霞樊川殷博杨旭升姬妍茹杨庆丽
Owner DAQING BRANCH OF HEILONGJIANG ACAD OF SCI
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