Method for rapidly identifying salt tolerance of eggplants

Abstract

The invention relates to a method for rapidly identifying salt tolerance of eggplants and belongs to the technical field of plant cultivation and breeding. The method comprises carrying out salt stress treatment on 15 varieties of eggplants in the four-leaf and one-hearted eggplant seedling stage for 10 days, then detecting leaf proline content, a chlorophyll loss rate and a salt damage index after treatment for 10 days, calculating single membership function values of the leaf proline content, chlorophyll loss rate and salt damage index of 15 varieties of eggplants, calculating a comprehensive membership function value of each variety of the eggplant, carrying out comprehensive evaluation on the salt tolerance and building an evaluation system. The salt-tolerance membership function valuecan evaluate the salt tolerance of the plant through a comprehensive index and the evaluation result is close to the actual one. Through the eggplant seedling comprehensive membership function valueafter salt stress, the salt tolerance of the eggplant can be simply, quickly and accurately identified.

Description

technical field [0001] The invention belongs to the technical field of stress resistance identification of eggplant, relates to a method for screening the salt tolerance of eggplant and a salt tolerance evaluation system, in particular to a method for quickly identifying the salt tolerance of eggplant. Background technique [0002] Soil salinization refers to the process in which soluble salts in soil move and accumulate with water to the surface (0-20-30cm), and the content exceeds 0.1% or 0.2%, also known as soil salinization. At this time, it will begin to affect the normal development of general crops. Secondary salinization is a process in which the original non-salinized soil is salinized or the degree of salinization of the original soil is enhanced due to improper human activities. Soil salinization has a wide range of damage to crops, among which osmotic stress, ion toxicity and nutrient imbalance are the most obvious phenomena under salt stress. If there are more...

AI Technical Summary

Problems solved by technology

However, with the occurrence of soil salinization, it will be difficult to grow eggplant seedlings. Even if the seedlings are established, the root system will be poorly developed, the leaves will be stiff, and the plants will be short.

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