Method for rapidly identifying cold resistance of eggplant

Abstract

The invention relates to a method for rapidly identifying the cold resistance of eggplant. The cold resistance of the eggplant is rapidly identified by using low temperature treatment germination of seeds, the germination vigor, the germination rate and the germination index of the seeds under low conditions are detected, and the cold resistance of the seeds is rapidly identified through using comprehensive subordinative function values. A vitality index can objectively reflect the cold resistance of the seeds. The method is suitable for preliminary screening of a large amount of variety resources. Verification of the influences of the low temperature on the content of malondialdehyde (MDA) in eggplant leaves shows that low temperature germination identification of the cold resistance of the eggplant is a simple and scientific method, so a simple and reliable effective approach is provided for rapid identification of the cold resistance of crops. The cold resistance subordinative function values are comprehensive indexes for evaluating the cold resistance of plants, and obtained evaluation result is more close to a practical value. The method using the low temperature germination subordinative function values can be used to simply, fast and accurately identify the cold resistance of the eggplant.

Description

technical field [0001] The invention belongs to the technical field of eggplant stress resistance identification, and relates to a method for screening eggplant cold resistance and a cold resistance evaluation system, in particular to a method for rapid identification of eggplant cold resistance. Background technique [0002] Eggplant (Solanum melongena L.) is one of the top ten vegetable crops in the world, and it is cultivated in most parts of the world, especially in Asia, Europe, Africa, North America and other regions. China is the largest eggplant producer in the world, and it is also the secondary origin center of eggplant, and its cultivation area accounts for about 50% of the world. In 2013, the planting area of ​​eggplant in my country was 801,000 hectares, and the total output reached 28.4558 million tons. Eggplant has high nutritional value, rich in vitamins and minerals, especially vitamin E, P and iron. In addition, eggplant contains a variety of alkaloids, w...

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Problems solved by technology

At present, domestic research on the cold tolerance identification of eggplant varieties or materials is mostly focused on

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