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A plant growth regulator that enhances plant nitrogen uptake and utilization

A plant growth regulator, a technology of a growth regulator, applied in the field of agricultural biology, can solve problems affecting plant nutrient absorption and metabolism, and achieve the effect of enhancing plant nitrogen absorption and utilization, promoting growth, and promoting effect

Active Publication Date: 2021-10-26
HENAN INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to these direct evidences, some indirect studies also suggest that the application of melatonin may affect plant nutrient uptake and metabolism

Method used

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  • A plant growth regulator that enhances plant nitrogen uptake and utilization
  • A plant growth regulator that enhances plant nitrogen uptake and utilization
  • A plant growth regulator that enhances plant nitrogen uptake and utilization

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Experimental program
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Embodiment 1

[0035] The plant growth regulator for enhancing plant nitrogen absorption and utilization of the present invention is applicable to the whole growth cycle of the plant. The seedling stage is taken as an example below to carry out relevant tests.

[0036] 4-5 cotton seedlings at the true leaf stage and 4-5 peanut seedlings at the compound leaf stage were treated with different concentrations of melatonin and nitrogen. The treatment concentrations of melatonin were 0 μM, 0.01 μM, 0.1 μM, 0.5 μM, 1 μM, 5 μM and 20 μM, respectively. Nitrogen treatment is divided into two situations, the first is normal nitrogen treatment, that is, normal nutrient solution treatment (2.5mmol / L Ca(NO3) 2 , 1mmol / L MgSO 4 , 0.5mmol / L NH 4 h 2 PO 4 , 2mmol / L NaCl, 2×10 -4 mmol / LCuSO 4 , 1×10 -3 mmol / LZnSO 4 , 0.1mmol / L EDTA-FeNa, 2×10 -2 mmol / L H 3 BO 3 , 5×10 -6 mmol / L (NH 4 ) 6 Mo 7 o 24 , 1×10 - 3 mmol / L MnSO 4 and 2.5mmol / L KCl); the second is low nitrogen treatment, the nutrien...

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Abstract

The invention discloses a plant growth regulator for enhancing plant nitrogen absorption and utilization, and belongs to the field of agricultural biotechnology. A plant growth regulator for enhancing plant nitrogen absorption and utilization disclosed by the invention is 0.1-1 μM melatonin, and the plant is cotton or peanut. 0.1‑1μM melatonin can promote the growth of cotton and peanut seedlings by promoting the growth of cotton and peanut roots, especially the occurrence of lateral roots, and the promotion effect is more significant under low nitrogen stress conditions.

Description

technical field [0001] The invention relates to the field of agricultural biotechnology, in particular to a plant growth regulator for enhancing plant nitrogen absorption and utilization. Background technique [0002] China's nitrogen fertilizer consumption accounts for 30% of the global total. However, the utilization efficiency of nitrogen fertilizer is only 30-40%. Globally, nitrogen consumption is projected to increase to 13×10 by 2050 9 -15×10 9 tons / year. Low fertilizer use efficiency is a common problem when using chemical fertilizers. Nitrogen losses are particularly severe in chemical fertilizers. Much of this excess nitrogen fertilizer is lost to the environment, which can lead to eutrophication of surface waters, excessive levels of nitrate nitrogen in groundwater, and increases in greenhouse gases such as N 2 O emissions. [0003] Cotton (Gossypium hirsutum L.) is an important economic crop in my country, the planting area accounts for about 15% of the wor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/38A01P21/00
CPCA01N43/38
Inventor 张志勇李丽杰薛惠云段鹏飞王素芳
Owner HENAN INST OF SCI & TECH