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CN-122004219-A - Expanding agent based on abscisic acid and application thereof in promoting growth and development of radix potentillae anserinae tubers

CN122004219ACN 122004219 ACN122004219 ACN 122004219ACN-122004219-A

Abstract

The invention belongs to the technical field of biology, and discloses an expanding agent based on abscisic acid (ABA) and application thereof in promoting growth and development of radix potentillae anserinae (Potentilla anserina) tubers. The core is that ABA with specific concentration can promote the expansion of the root tuber of the introduction potentilla anserina specifically and efficiently by spraying the whole plant for a specific treatment time. Preferably, the concentration of ABA is 20-80 mg/L, and most preferably 40-mg/L, and the treatment method is that the whole plant spraying treatment is carried out in the main development period (such as 7-11 months) of the root tuber from the beginning of the plant height of about 5cm after the seedling of potentilla anserina is uneaten, and the treatment is continued for at least 1 month, most preferably 4 months. The application can obviously increase the root length, diameter, expansion rate and fresh weight of the potentilla anserina, improve the content of starch and soluble sugar in the root tuber, inhibit the accumulation of lignin and the activity of phenylalanine ammonia lyase, thereby effectively solving the problem that the root tuber is not expanded in the introduction and cultivation of the potentilla anserina, improving the yield and medicinal value of the potentilla anserina and providing a new way for industrial popularization of the potentilla anserina.

Inventors

  • ZHANG WUHUA
  • LI SHUAI
  • CHE DAIDI
  • YANG TAO
  • XIE ZIQING
  • Du Yuexi
  • SU MAN
  • CHEN JING
  • ZHANG JINZHU
  • DONG JIE
  • ZHOU YULI

Assignees

  • 东北农业大学

Dates

Publication Date
20260512
Application Date
20260204

Claims (9)

  1. 1. An expanding agent based on abscisic acid is characterized by comprising the abscisic acid as an effective active ingredient, wherein the content of the abscisic acid is 20-80 mg/L, and the expanding agent based on the abscisic acid acts on potentilla anserina plants by spraying and is used for increasing the root tuber expanding rate and the biomass of the underground part.
  2. 2. The swelling agent based on abscisic acid as claimed in claim 1, wherein the content of abscisic acid is 20-40mg/L.
  3. 3. The swelling agent based on abscisic acid as set forth in claim 2, wherein the abscisic acid is contained in an amount of 40mg/L.
  4. 4. Use of an expanding agent based on abscisic acid as claimed in any one of claims 1 to 3 for promoting the growth and development of the root tuber of potentilla anserina, wherein the application is to the aerial parts of potentilla anserina plants in the root tuber development stage in the form of a spray, wherein the duration of the treatment is not less than 1 month.
  5. 5. The method of claim 4, wherein the spray pattern is full plant spray, and the plant growth stage is up to 5cm or more after seedling emergence.
  6. 6. The method according to claim 4, wherein the duration is 2-4 months.
  7. 7. The method of claim 6, wherein the duration is 4 months.
  8. 8. The method according to claim 4, wherein the root tuber development period is 7 to 11 months.
  9. 9. The use according to claim 4, wherein the promotion comprises at least one of increasing biomass of the lower part of the potentilla anserina plant, increasing starch and/or soluble sugar content in the tubers, increasing the rate of tuber enlargement, and/or decreasing lignin content and phenylalanine ammonia lyase activity of the tubers.

Description

Expanding agent based on abscisic acid and application thereof in promoting growth and development of radix potentillae anserinae tubers Technical Field The invention belongs to the technical field of biology, and particularly relates to an expanding agent based on abscisic acid and application thereof in promoting growth and development of silverweed cinquefoil root tuber. Background The Potentilla anserina (Potentilla anserina), commonly called ginseng fruit or anemone, is a perennial herb plant of the genus Potentilla (Potentilla L.) of the family Rosaceae, and the enlarged root is rich in various bioactive components such as polysaccharide and saponin, has pharmacological effects of strengthening spleen and supplementing stomach, activating blood and dissolving stasis, resisting viruses, enhancing immunity and the like, and is widely applied to Tibetan medicine systems. Besides the main active components, the root of the potentilla anserina contains a plurality of microelements such as vitamin C, calcium, potassium, zinc, magnesium and the like which are necessary for human health, and has both nutrition and medicinal value. The potentilla anserina is mainly distributed on the highland and in the northwest area, the area is sufficient in illumination and large in day and night temperature difference, and the climate conditions are similar to that of the northeast Heilongjiang province. However, when the potentilla anserina is introduced into the Harbin region for cultivation, the root of the potentilla anserina is not enlarged normally, so that the accumulation of medicinal components is insufficient, the economic value and the medicinal value are obviously reduced, and the development of the potentilla anserina industry is severely restricted. The swelling agent is a key growth regulator for promoting plant tuberous root formation and swelling, and the main components of the swelling agent are plant hormone analogues such as forchlorfenuron (CPPU), thidiazuron (TDZ), gibberellic Acid (GA) and forchlorfenuron (CPPU). These growth regulators promote fruit enlargement and increase yield by promoting cell division and enlargement, and regulating endogenous hormone levels in plants. Abscisic acid (ABA) is an important plant hormone, and plays an important physiological role in regulating and controlling seed development, seed dormancy and germination, inhibiting growth, promoting flower and fruit drop, participating in the process of plants coping with external environmental stress and the like. However, there is no research on whether ABA can promote root expansion as a root expander. Early-stage researches of the subject group show that the exogenous application of ABA can effectively regulate and control the morphological formation and substance accumulation of the silverweed cinquefoil root tuber, and has remarkable effect on the growth of plant root tuber. Therefore, the system explores the mechanism of ABA in the growth and expansion process of the potentilla anserina tubers, not only can perfect the plant tubers growth theory system, but also can provide a theoretical basis for the research and development of novel plant growth regulators. The research result is expected to promote the expansion of plant tuberous roots with high efficiency and orientation, has important application value for improving the yield and quality of the medicinal plant tuberous roots, promotes the development and innovation of the growth regulator, and has important scientific significance and application prospect. Disclosure of Invention Aiming at the difficult problem of root tuber expansion which restricts the introduction and cultivation of the potentilla anserina, the invention provides the expanding agent based on the abscisic acid and the application thereof in promoting the growth and development of the potentilla anserina root tuber, effectively promotes the expansion of the potentilla anserina root tuber and the accumulation of starch, and simultaneously clearly applies key parameters such as time period, concentration, frequency and the like, thereby providing reliable technical support for improving the drug use value and the yield of the potentilla anserina. In order to achieve the above object, the present invention is realized by the following technical scheme: In a first aspect, the invention provides an expanding agent based on abscisic acid, comprising abscisic acid (ABA) as an effective active ingredient, wherein the content of abscisic acid is 20-80 mg/L, and the expanding agent based on abscisic acid acts on potentilla anserina plants by spraying, and is used for increasing the root tuber expanding rate and the biomass of the underground part. Preferably, the content of the abscisic acid is 20-40mg/L. Preferably, the content of the abscisic acid is 40mg/L. In a first aspect, the invention provides the use of an expander based on abscisic acid as described in the first aspect for promoting the growth and