Water culture method for relieving toxic effect of cadmium on tomatoes through salicylic acid and application of salicylic acid

A technology of salicylic acid and tomato, applied in application, horticultural methods, botanical equipment and methods, etc., can solve the problems of reducing cadmium content and no research, so as to increase biomass, alleviate the inhibition of photosynthetic rate, and relieve cell membrane the effect of damage

Inactive Publication Date: 2018-08-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the basis of their studies, the administration of exogenous salicylic acid may not be beneficial in reducing cadmium levels
In addition, the report did not conduct research on how to improve tomato quality under cadmium stress.

Method used

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  • Water culture method for relieving toxic effect of cadmium on tomatoes through salicylic acid and application of salicylic acid
  • Water culture method for relieving toxic effect of cadmium on tomatoes through salicylic acid and application of salicylic acid
  • Water culture method for relieving toxic effect of cadmium on tomatoes through salicylic acid and application of salicylic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Choose tomato seeds with consistent size and plump grains (purchased from the Chinese Academy of Agricultural Sciences, the varieties are Liger (cadmium-tolerant) and Tabd (cadmium-sensitive)), and use 30% H 2 o 2 The solution was sterilized for 15 minutes, then rinsed with distilled water for 5 times, placed evenly in a tray with vermiculite, kept sufficient water, and germinated in an artificial incubator at 20°C. At the stage of two leaves and one heart, the tomato seedlings were transferred to hydroponic pots containing 1 / 2 Hoagland nutrient solution, and placed in an automatic control growth room for cultivation (light 15-17h, dark 7-9h, relative humidity 55%-65%) , the temperature is 24°C-28°C (day) / 18°C-22°C (night)). After three weeks of hydroponic cultivation, plants with uniform growth were selected and transplanted into hydroponic pots (capacity 1000 ml, 15×17 cm) for experimentation. With a concentration of 100 μmol L -1 The salicylic acid aqueous solutio...

Embodiment 2

[0088] Choose tomato seeds with consistent size and plump grains (purchased from the Chinese Academy of Agricultural Sciences, the varieties are Liger (cadmium-tolerant) and Tabd (cadmium-sensitive)), and use 30% H 2 o 2The solution was sterilized for 15 minutes, then rinsed with distilled water for 5 times, placed evenly in a tray with vermiculite, kept sufficient water, and germinated in an artificial incubator at 20°C. At the stage of two leaves and one heart, the tomato seedlings were transferred to hydroponic pots containing 1 / 2 Hoagland nutrient solution, and placed in an automatic control growth room for cultivation (light 15-17h, dark 7-9h, relative humidity 55%-65%) , the temperature is 24°C-28°C (day) / 18°C-22°C (night)). After three weeks of hydroponic cultivation, plants with uniform growth were selected and transplanted into hydroponic pots (capacity 1000 ml, 15×17 cm) for experimentation. With a concentration of 150μmol L -1 The salicylic acid aqueous solution ...

Embodiment 3

[0092] Choose tomato seeds with consistent size and plump grains (purchased from the Chinese Academy of Agricultural Sciences, the varieties are Liger (cadmium-tolerant) and Tabd (cadmium-sensitive)), and use 30% H 2 o 2 The solution was sterilized for 15 minutes, then rinsed with distilled water for 5 times, placed evenly in a tray with vermiculite, kept sufficient water, and germinated in an artificial incubator at 20°C. At the stage of two leaves and one heart, the tomato seedlings were transferred to hydroponic pots containing 1 / 2 Hoagland nutrient solution, and placed in an automatic control growth room for cultivation (light 15-17h, dark 7-9h, relative humidity 55%-65%) , the temperature is 24°C-28°C (day) / 18°C-22°C (night)). After three weeks of hydroponic cultivation, plants with uniform growth were selected and transplanted into hydroponic pots (capacity 1000 ml, 15×17 cm) for experimentation. Use a concentration of 50 μmol L -1 The salicylic acid aqueous solution ...

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Abstract

The invention provides a water culture method for relieving the toxic effect of cadmium on tomatoes through salicylic acid and application of salicylic acid. The water culture method includes the following steps that when tomato seedlings are in a two-leaf one-core period, 3 weeks after the tomato seedlings are moved into a water culture box for water culture, a salicylic acid water solution withthe concentration of 20-200 micromole L<-1> is used for foliage spraying, the spraying amount is based on leaf surface water dropping, the salicylic acid solution is sprayed once every day, the salicylic acid water solution is sprayed for three days in total, and then the tomatoes are subjected to 5mg L<-1>Cd(CdSO4) treatment. The accumulation of cadmium in the tomatoes can be reduced, oxidative damage and photosynthesis inhibition of cadmium stress on tomato cells can be relieved, the content of photosynthetic pigments is increased, the photosynthesis performance is improved, and the tomato biomass is remarkably increased.

Description

technical field [0001] The invention belongs to the technical field of safe planting of vegetables, and in particular relates to a hydroponic method for alleviating the toxic effect of cadmium on tomato by using salicylic acid and the application of salicylic acid. Background technique [0002] According to the "China Cultivated Land Geochemical Survey Report" issued by the my country Geological Survey Bureau, there are 2.32 million hm 2 Heavy metal heavy metal pollution or exceeding the standard cultivated land accounted for 16.1% of the total cultivated land. On April 17, 2014, the Ministry of Environmental Protection and the Ministry of Land and Resources jointly announced the National Soil Pollution Survey Bulletin, pointing out that the soil environment in my country is worrying, and the pollution of heavy metals such as Cd is relatively prominent. From the perspective of pollution distribution, soil pollution in the south is relatively high. The soil pollution in the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01G7/06
CPCA01G31/00A01G7/06
Inventor 郭军康王小红魏婷贾红磊任倩吕欣李艳萍
Owner SHAANXI UNIV OF SCI & TECH
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