Improved variety soybean breeding method

A soybean and improved seed technology, applied in the field of crop breeding, can solve problems such as poor efficiency, affecting farmers' planting enthusiasm and economic income, and achieve the effect of improving utilization rate, enriching planting varieties, and increasing land output value

Inactive Publication Date: 2015-05-06
张大跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the soybean yield per unit area in Gansu has hovered around 100kg / mu for many years. Comparatively speaking, the benefits are poor, which directly affects farmers' planting enthusiasm and economic income.

Method used

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  • Improved variety soybean breeding method
  • Improved variety soybean breeding method

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Experimental program
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Effect test

Embodiment 1

[0032] A method for breeding a new hybrid soybean variety, comprising:

[0033] (1) Plant the space-breeding soybean TK-1 (♀) and wild soybean M7 (♂) in the experimental field, and plant TK-1 and M7 alternately, with an alternating interval of 0.5m;

[0034] ⑵The flowers of TK-1 at the dew-white stage were treated with chemical castration agents, and until the late flowering stage, special chemical castration agents were used for 3 times;

[0035] (3) Take the stamens of M7 flowers at the fully open stage, artificially pollinate the emasculated part of TK-1, mark the plants that have been artificially pollinated, and cut off the inflorescences that have not been pollinated on the marked plants, and isolate; the remaining emasculated TK-1 1 Pollination by wind and insects.

[0036] (4) Harvest the seeds of the mature plant TK-1 according to the fruit pods, that is, the first generation F 1 ;

[0037] ⑸ planting F 1 In the next generation, the traits of each plant were detec...

Embodiment 2

[0040] A kind of cultivating technique of improved soybean, the concrete steps that comprise are:

[0041] ①Site selection and preparation: On a flat land at an altitude of 1900m, select a plot with a soil pH value of 6.0-7.5. In the first ten days of April in spring, first deep plow with a depth of 25cm. And the stubble, the top is virtual and the bottom is solid, and the land is flat;

[0042] ② Seed selection: remove diseased and insect-eating seeds, select seeds with a purity higher than 97%, a clarity higher than 98%, a moisture content lower than 12%, and a germination rate higher than 90%, and choose soybean seed coating agent plus boron , molybdenum and zinc fertilizer mixed seed dressing for seed coating;

[0043] ③Sowing: In late April, select plots with good soil moisture in time, and use a precision seeder to mechanize moisture grabbing sowing, with a row spacing of 40cm, a plant spacing of 20cm, and two plants per hole; the seeding rate is 3kg / mu; the width of th...

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Abstract

The present invention discloses an improved variety soybean breeding method, and belongs to the technical field of crop breeding. According to the present invention, local wild soybean and improved variety space soybean with the characteristic of chemical emasculation are subjected to hybridization so as to directional breed the soybean with characteristics of rich regional characteristic, high quality, high yield and high resistance; the corresponding standardized cultivation technology is researched, local farmers are scientifically guided to reasonably plant so as to achieve the purpose of production increasing; especially the corn-soybean interplanting-complex planting film covering alternate planting way is adopted, such that the soybean can be continuously planted in the same land while the yield is not reduced so as to reasonably improve the utilization rate of the limited soil space resource, enrich the plantable variety of the soil, and increase the soil output value; and the improved variety soybean of the present invention is the non-transgene variety, can be adopted as the food and the related processed raw material, and has characteristics of safety on the human body, and no hidden danger.

Description

technical field [0001] The invention belongs to the technical field of crop breeding, in particular to a method for breeding improved soybeans. Background technique [0002] China is a big consumer of soybeans. In the past five years, the average annual total demand has reached about 45 million tons, while the annual total output is about 15 million tons. A large gap needs to be made up by imports. Soybeans have become the largest agricultural product imported domestically. Under the pressure of the current global food price rise and food supply problems, if the import of soybeans is restricted, it will inevitably cause a shortage of raw materials for the breeding industry and the processing industry, which in turn will affect the price rise of agricultural and sideline products in urban and rural areas, which will not only damage the lives of our people and the soybean industry The development will also endanger national food security. Due to the increasing population pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 张大跃陈涛剑张泽栋
Owner 张大跃
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