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Method for evidently lowering cadmium accumulation of brassica napobrassica and promoting growth of brassica napobrassica

A technology for kohlrabi and kohlrabi, which is applied in the fields of significantly reducing the accumulation of cadmium in kohlrabi and promoting its growth, can solve the problems of lack of universality and complicated selection process of suitable hormones, and achieve the effect of increasing the content of photosynthetic pigments and alleviating the inhibitory effect

Inactive Publication Date: 2017-10-24
SICHUAN AGRI UNIV
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Problems solved by technology

[0004] At present, in the research field of reducing cadmium content in vegetable crops, the application of exogenous hormones is one of the main means. However, due to the different sensitivity of different crops to different hormones, the screening process for suitable hormones is more complicated, and the research conclusions obtained are inconsistent. universal
At present, there are few studies on the reduction of cadmium in kohlrabi. At the same time, there are few in-depth studies on the reduction of cadmium and the inhibition of cadmium on kohlrabi.

Method used

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  • Method for evidently lowering cadmium accumulation of brassica napobrassica and promoting growth of brassica napobrassica
  • Method for evidently lowering cadmium accumulation of brassica napobrassica and promoting growth of brassica napobrassica
  • Method for evidently lowering cadmium accumulation of brassica napobrassica and promoting growth of brassica napobrassica

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Experimental program
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Embodiment 1

[0017] 1 Test materials and tests

[0018] 1.1 Materials

[0019] Kohlrabi seeds are purchased from the market. The soil was taken from farmland in Wenjiang District, Chengdu, and no cadmium was detected.

[0020] 1.2 Test

[0021] The soil is air-dried and crushed, and the cadmium content added to the soil is 10 mg / kg of pure CdCl 2 2.5H 2 O solution, the cadmium and the soil are fully mixed, and after the soil is left to stand for about a month, 3.0 kg of the cadmium-contaminated soil (fluvo-aquic soil) is respectively weighed and packed in 30 plastic pots of 15 × 18 cm (height × diameter). Finish treating the soil.

[0022] Sow the kohlrabi seeds evenly in the plastic pots that have been filled with soil, plant 10 seeds in each pot, keep them moist, place them in the cultivation room, keep the temperature of the cultivation room at about 24°C, and move the PVC pots to the shelter after emergence. In the canopy, seedlings were raised, and 4 seedlings with consistent gr...

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Abstract

The invention provides a method for evidently lowering the cadmium accumulation of brassica napobrassica and promoting the growth of the brassica napobrassica. The method includes: when brassica napobrassica seedlings grow 3-4 true leaves, using melatonin with the concentration being 50-200 micromol*L<-1> to perform leaf surface spraying until leaf surfaces can drip water. The method has the advantages that cadmium content in the brassica napobrassica can be lowered evidently, the photosynthetic pigment content, antioxidant enzyme activity and biomass of the brassica napobrassica can be increased evidently, and the inhibition effect of cadmium on the growth of the brassica napobrassica can be relieved effectively.

Description

technical field [0001] The invention belongs to the technical field of vegetable planting, and in particular relates to a method for significantly reducing the accumulation of cadmium in kohlrabi and promoting its growth. Background technique [0002] The quality of soil resources has a vital impact on human survival. With the rapid development of my country's industry, the content of heavy metals in farmland has greatly increased. In field crops, the main pollutants of agricultural products are heavy metals, among which cadmium is the most prominent. Cadmium has strong carcinogenic, teratogenic and mutagenic effects, which can interfere with the physiological functions of enzymes that require zinc and reduce their biological activity. Excessive cadmium content in the human body will greatly increase the risk of diseases such as diabetes, and it will also cause severe zinc deficiency, leading to the emergence of various cancers. Plants are very easy to accumulate harmful ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06
CPCA01G7/06
Inventor 谭华强李焕秀唐懿林立金廖明安谢永东孙国超
Owner SICHUAN AGRI UNIV
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