Efficient nitrogen barley screening method based on chlorate sensitivity

A screening method and chlorate technology, applied in horticultural methods, botanical equipment and methods, horticultural tools/equipment, etc., can solve problems such as difficulty in large-scale development, lack of unified standards, and difficulty in material differentiation, saving identification time , avoid inaccuracy, improve the effect of identification efficiency
CN114451283APending Publication Date: 2022-05-10SHANGHAI ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI ACAD OF AGRI SCI
Publication Date
2022-05-10

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Abstract

The invention discloses a chlorate sensitivity-based nitrogen-efficient barley screening method, which comprises the following steps: revealing the relationship between chlorate and each index of nitrogen-efficient barley through research, determining a chlorate screening system and evaluation indexes suitable for nitrogen-efficient barley, and utilizing seedling height and overground part dry weight as screening indexes of nitrogen-efficient barley. The barley variety of which the seedling height and the overground part are sensitive to chlorate at the same time is defined as nitrogen-efficient barley, the nitrogen absorption efficiency can be rapidly distinguished in the early stage of barley, the identification time is saved, and the identification efficiency is improved; the method can be used for large-scale screening and identification, is obvious in phenotype and higher in accuracy, avoids inaccuracy of a single index, is good in repeatability, and is suitable for large-scale material identification.
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Description

technical field

[0001] The invention belongs to the technical field of barley breeding, and in particular relates to a nitrogen-efficient barley screening method based on chlorate sensitivity. Background technique

[0002] Nitrogen is one of the macroelements necessary for plant growth and development, which affects the yield and quality of crops. Therefore, in agricultural production, a large amount of nitrogen fertilizer is usually applied to ensure maximum crop yield. However, the effective utilization rate of nitrogen fertilizer does not exceed 50%, and most of the nitrogen fertilizer is eventually lost to the soil and water, causing many environmental problems, such as soil acidification, water eutrophication, global warming and so on. Therefore, carrying out crop nitrogen-efficient breeding can increase crop yield while reducing the use of nitrogen fertilizer, which is an ideal way for the current sustainable agricultural development.

[0003] Barley (Hordeum vulgare...

Claims

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