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Method for increasing content of lactone in common andrographis herb medicinal material through drought of harvesting time

A technology of andrographis paniculata, harvest period, applied in the field of medicinal plant cultivation research, can solve the problem of not mentioning the influence of andrographolide substance content, and achieve the effects of improving the quality of medicinal materials, increasing the total lactone content, and promoting air circulation

Inactive Publication Date: 2017-05-10
GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the literature of Andrographis paniculata cultivation technology, there is no report on the impact of drought on the content of andrographis paniculata during the harvest period.

Method used

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  • Method for increasing content of lactone in common andrographis herb medicinal material through drought of harvesting time
  • Method for increasing content of lactone in common andrographis herb medicinal material through drought of harvesting time
  • Method for increasing content of lactone in common andrographis herb medicinal material through drought of harvesting time

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Embodiment 1

[0024] A kind of method of utilizing the drought in the harvest period of the present invention to improve the content of lactone in Andrographis paniculata medicinal material, carry out the drought treatment that lasts 17 days after 100 days after the emergence of Andrographis paniculata, the soil used includes loam, peat soil, organic fertilizer, and its weight ratio is 3 :1:1, and the organic carbon in the soil is 4.24mg g -1 , with a total nitrogen content of 2.01mg g -1 , the pH value is 6.56, and the saturated water content of the soil is 28.15% (w / w). The water content of the soil is sampled and adjusted at the same time every day so that the soil water content is maintained at 20% of the saturated water content (w / w) .

Embodiment 2

[0026] A kind of method of utilizing the drought in the harvest period of the present invention to improve the content of lactone in Andrographis paniculata medicinal material, carry out the drought treatment that lasts 17 days after 100 days after the emergence of Andrographis paniculata, the soil used includes loam, peat soil, organic fertilizer, and its weight ratio is 3 :1:1, and the organic carbon in the soil is 4.24mg g -1 , with a total nitrogen content of 2.01 mg g -1 , the pH value is 6.56, and the saturated water content of the soil is 28.15% (w / w); then carry out drought treatment, promptly the water content of soil is sampled and measured and adjusted at the same time every day, so that the water content of the soil is maintained at 40% of the saturated water content. % (w / w).

Embodiment 3

[0028] A kind of method of utilizing the drought in the harvest period of the present invention to improve the content of lactone in Andrographis paniculata medicinal material, carry out the drought treatment that lasts 17 days after 100 days after the emergence of Andrographis paniculata, the soil used includes loam, peat soil, organic fertilizer, and its weight ratio is 3 :1:1, and the organic carbon in the soil is 4.24mg g -1 , with a total nitrogen content of 2.01 mg g -1 , the pH value is 6.56, and the saturated water content of the soil is 28.15% (w / w). The water content of the soil is sampled and adjusted at the same time every day, so that the soil water content is maintained at 60% of the saturated water content (w / w) .

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Abstract

The invention discloses a method for increasing the content of lactone in a common andrographis herb medicinal material through drought of harvesting time. Drought treatment is continuously carried out for 7-20 days in the harvesting time of common andrographis herb, wherein according to the conditions of the drought treatment, the water content of soil is controlled to be 20-60% (w / w) of the saturated water content; especially, drought treatment is continuously carried out for 17 days during the optimal harvesting time (100-120 days after seedling emerge) of the common andrographis herb, the water content of the soil is sampled, measured and adjusted in the same time every day, the water content of the soil is kept at 20% (w / w) of the saturated water content, the content of dehydrated common andrographis herb lactone and total lactone in the common andrographis herb medicinal material is increased, the quality of the common andrographis herb medicinal material is effectively improved, and decrease of biomass can be kept within the acceptable range. The method is easy to operate, practical, feasible and beneficial for popularization in agricultural production.

Description

technical field [0001] The invention relates to the field of medicinal plant cultivation research, and relates to a method for increasing the content of lactone in the medicinal material Andrographis paniculata by utilizing the drought in the harvest period. Background technique [0002] Andrographis paniculata is an annual herbaceous plant of the genus Andrographis in the Acanthaceae family. Andrographis paniculata is native to India, Sri Lanka, Myanmar, Indonesia, Thailand, and Vietnam, and was introduced to China in the 1950s. Now wild Andrographis paniculata in China are rare due to excessive collection. Cultivated Andrographis paniculata are mainly planted in Guangxi, Guangdong, Sichuan, Fujian, Hunan and other places. Among them, Guangxi has the largest planting area and the largest seed garden. Almost all Andrographis paniculata in China The seeds are all provided by Guangxi. [0003] Andrographis paniculata has a special bitter taste and is known as the "king of bi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G9/02A01G9/10A01G9/04
CPCA01G9/02A01G9/042A01G17/005A01G24/00
Inventor 陈晓英郭晓云李翠李莹谢月英蓝祖栽缪剑华
Owner GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS
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