Simple identification method for peanut variety photooxidation resistance property
An identification method and photo-oxidation technology, which are applied in the fields of botanical equipment and methods, horticulture, plant cultivation, etc., can solve the problems of no report on the screening method of peanut photo-oxidation, photo-oxidative stress of peanut leaves, etc., and achieve low cost and reliable results. , the effect of easy operation
Inactive Publication Date: 2016-06-15
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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The peanut growing season is in summer, and we often encounter extreme weather such as high temperature, strong light, and drought. These adversities may lead to photooxidative stress on peanut leaves, but there is no report on the photooxidative screening method of peanut.
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[0024] As early as 1991, Jiao Demao et al. (Chinese Rice Science, 1991, 5(3): 133-136) reported a simple identification technology for rice light-resistant oxidation germplasm resources. The method takes leaf color as the evaluation index, and it is divided into 5 grades. The leaf color remains green as grade 1; the leaves basically remain green, and the leaf tips turn yellow as grade 2; 2 Yellowing is Grade 4, and most or all of the leaves are Yellowing is Grade 5. After the full flowering of wheat, 3 cm of the middle section of the flag leaf was taken for photooxidative identification, and the evaluation was made by the change of leaf color (Wu Changai et al., Acta Crops Sinica, 2003, 29(3): 339-344). Take 1 functional leaf from each soybean plant, and use the 4-level leaf color standard for identification. If the leaf remains green, it is grade 1; if the green part of the leaf accounts for more than 70%, it is grade 2; Green less than 50% is grade 4 (Gu Heping, 1999, Jiang...
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The invention provides a simple identification method for peanut variety photooxidation resistance property, and belongs to the technical field of agricultural planting. The simple identification method comprises the following steps: placing peanut in-vitro functional leaves into water; utilizing natural conditions including strong light and high temperature in summer to artificially create a light inhibition environment with high temperature, high light intensity and low CO2 concentration, wherein in the adverse situation, the environment where the leaves are placed can generate a mass of active oxygen to attack photosynthetic organizations, thus inducing photosynthetic pigment degradation and photosynthetic function recession to cause obvious photooxidation damage, and the leaves become yellow in the appearance; taking the yellow extent of the leaves as an index for evaluating the photooxidation resistance of the variety, that is to say, the light yellow extent shows strong photooxidation resistance, otherwise weak. The method is suitable for identifying the photooxidation resistance of the peanut variety in batches, and has the characteristics of being simple and convenient to operate, low in cost and reliable in result.
Description
technical field [0001] The invention provides a simple method for identifying the light-resistant oxidation resistance of peanut varieties, which belongs to the technical field of agricultural planting and is used for identifying the light-oxidative resistance of batches of peanut varieties. Background technique [0002] When the light energy absorbed by plants exceeds the needs of photosynthesis, the excess energy will form various reactive oxygen species, resulting in membrane lipid peroxidation and photosynthetic pigment attenuation, that is, photooxidative damage. A large number of studies have shown that under low temperature, high temperature, and drought stress conditions, strong or even moderately strong light may cause photooxidative damage, resulting in a decrease in plant photosynthetic production capacity and affecting yield and quality. Photooxidation is ubiquitous in C3 plants, and the research on photooxidative stress has also attracted much attention. There a...
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IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 陈志德李霞沈一刘永惠
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES