A screening device and identification method for soybean salt tolerance and salt-alkali tolerance

Abstract

The invention discloses a soybean salt tolerance and saline-alkaline tolerance screening device and an identification method. The soybean salt tolerance and saline-alkaline tolerance screening device comprises a working frame and a solution stirring bucket; the working frame comprises an upper layer and a lower layer; the upper layer of the working frame is provided with a pass box and the lower layer is provided with a water supply tower which is used for supplying water or salt solution for the pass box; the solution stirring bucket and the water supply tower are connected through a water pipe; the water supply tower and the pass box are connected through a water pipe; a fixing net is fixedly arranged inside the pass box; a breeding pipe is arranged inside grids; the lateral wall surface and the bottom surface of the breeding pipe are provided with permeable holes; the solution permeates the breeding pipe through the permeable holes; water (or the salt solution) is automatically replaced through an electromagnet valve which is controlled by a timer. The soybean salt tolerance and saline-alkaline tolerance identification method established by utilizing the device is stable, scientific and simple and beneficial to large-scale identification and large-scale screening can be performed inside space with limited greenhouse, the degree of automation is high, the environmental influences are small, the repeatability is strong, and the screening result is reliable.

Description

Technical field [0001] The present invention relates to a soybean salt-tolerant and salt-alkali-tolerant screening device and identification method, in particular to a salt-tolerant (NaCl stress) or salt-tolerant (NaCl stress) or a Salt and alkali resistance (NaHCO 3 A salt-tolerant and salt-tolerant screening device and an identification method identified by stress) belong to the technical field of crop genetic breeding. Background technique [0002] At present, at least 20% of the cultivated land in the world is salinized. There are two main types of saline land: saline land and alkaline land. The Food and Agriculture Organization of the United Nations / United Nations Educational, Technology and Cultural Organization (FAO / UNESCO) conducted a survey on the distribution of saline-alkali soils in the world. The results showed that the distribution of saline and alkaline soils on the earth was 397 and 434 million hectares respectively, which became one of the main factors restrictin...

AI Technical Summary

Problems solved by technology

However, the hydroponic soybean root system is prone to hypoxia, and the nutrient solution needs to be replaced frequently, which consumes manpower and material resources and is difficult to identify on a large scale

At present, there is no device dedicated to the identification of salt tolerance or salt-alkali tolerance or a stable, scientific and convenient salt-tolerance identification method

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