Method for screening salt-resistant maize variety

A technology of corn and varieties, applied in botany equipment and methods, horticulture, plant cultivation, etc., can solve problems such as easy root rot, lack of plants, and difficult root rot

Inactive Publication Date: 2016-08-10
YUNCHENG UNIVERISTY
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  • Abstract
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  • Application Information

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Problems solved by technology

However, hydroponics is prone to root rot due to anaerobic respiration of plant roots.
[0005] Therefore lack a kind of m...

Method used

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  • Method for screening salt-resistant maize variety
  • Method for screening salt-resistant maize variety
  • Method for screening salt-resistant maize variety

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] A method for screening salt-tolerant corn varieties, specifically comprising the following steps:

[0029] Seed selection: Full, neat and undamaged seeds were selected from different varieties of corn seeds for sand culture planting. The planting substrate was mixed with fine sand and sieved farmland soil at a ratio of 1:2. The plump, neat and undamaged seeds are selected from different varieties of corn seeds and planted in sand culture with the same planting substrate, which ensures the germination rate of corn seeds and eliminates the influence of other factors oth...

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Abstract

The invention provides a method for screening a salt-resistant maize variety. According to the method, plump, orderly and undamaged seeds are picked out from maize seeds in different varieties and subjected to sand-culture planting in the same planting matrix, seedlings growing consistently are selected after a period of time and transplanted to aeroponic culture turnover boxes containing a 1/2 Hoagland nutrient solution and grow into maize plants, the plants with three completely spread leaves and one unspread leaf in the center in the consistent growth condition are selected, stem thicknesses X1 are recorded, and the selected plants are divided into a salt treatment group and a blank control group; the plants in the blank control group are still subjected to aeroponic culture in the 1/2 Hoagland nutrient solution, and as for the salt treatment group, NaCl with the concentration being 200 mmol/L is added to the 1/2 Hoagland nutrient solution for aeroponic culture. After a preset time period passes, the stem thicknesses of the maize plants in the salt treatment group and the blank control group are measured respectively, and the maize variety more resistant to salt can be screened out through analysis and contrast of stem thickness data. The method is not high in cost, easy to operate and convenient to popularize and use in various places.

Description

technical field [0001] The invention relates to a method for screening corn varieties, in particular to a method for screening salt-tolerant corn varieties. Background technique [0002] Corn is a food and feed crop with a long history of cultivation in the world. It has high production capacity and has the characteristics of drought resistance, salt resistance, waterlogging resistance, and barren resistance. However, there are great differences in salt tolerance among different maize varieties. As an important food crop in my country, corn plays a pivotal role in the development of the national economy. Due to the constraints of soil salinization, the cultivation of maize has been seriously affected. Corn itself has the characteristics of salt-alkali tolerance, and after salt-tolerant breeding, it can be used as a pioneer crop for improving the use of saline-alkali soil and developing the economy in saline-alkali areas. [0003] For a long time, the screening or identifi...

Claims

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Application Information

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IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 杜磊
Owner YUNCHENG UNIVERISTY
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