Method for improving drought resistance of peonies for oil with jasmonic acid

A technology for using peony and jasmonic acid in oil, applied in horticultural methods, botanical equipment and methods, applications, etc., can solve the problems of reduced normal growth and yield, susceptibility to drought stress, etc., to increase net photosynthetic rate and improve resistance , the effect of simple operation

Inactive Publication Date: 2020-04-10
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims at the problem that the above-mentioned peony for oil is susceptible to drought stress during its growth process, affecting its normal growth and resulting in a decrease in yield, and provides a method for improving the drought resistance of peony for oil by using jasmonic acid

Method used

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  • Method for improving drought resistance of peonies for oil with jasmonic acid
  • Method for improving drought resistance of peonies for oil with jasmonic acid
  • Method for improving drought resistance of peonies for oil with jasmonic acid

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Effect test

Embodiment 1

[0030] A kind of method adopting jasmonic acid (JA) to improve the drought resistance of oil peony, comprises the following steps:

[0031] Step 1: Select three-year-old oil peony 'Fengdan' plants with uniform growth and uniform size from the International Peony Garden to graft seedlings, and plant them in plastic flower pots with a diameter of 20 cm in October 2017, one plant per pot.

[0032] Step 2: Cultivate in a plastic greenhouse until May of the following year, during which normal water management is carried out.

[0033] Step 3: Spray the whole plant, use 50 μmol / L jasmonic acid, preferably drip water on the upper and lower surfaces of the leaves, and set 5 repetitions for each treatment.

[0034] Step 4: After 50 μmol / L jasmonic acid treatment for 3 days, carry out drought stress (control, mild drought, severe drought, rewatering treatment), observe its phenotype changes every day, and measure the changes of its photosynthetic performance indicators.

[0035] Step 5:...

Embodiment 2

[0037] A kind of method adopting jasmonic acid (JA) to improve the drought resistance of oil peony, comprises the following steps:

[0038] Step 1: Select three-year-old oil peony 'Fengdan' plants with uniform growth and uniform size from the International Peony Garden to graft seedlings, and plant them in plastic flower pots with a diameter of 20 cm in October 2017, one plant per pot.

[0039] Step 2: Cultivate in a plastic greenhouse until May of the following year, during which normal water management is carried out.

[0040] Step 3: Spray the whole plant, use 100 μmol / L jasmonic acid, preferably drip water on the upper and lower surfaces of the leaves, and set 5 repetitions for each treatment.

[0041] Step 4: After 100 μmol / L jasmonic acid treatment for 3 days, carry out drought stress (control, mild drought, severe drought, rewatering treatment), observe its phenotype changes every day, and measure the changes of its photosynthetic performance indicators.

[0042] Step ...

Embodiment 3

[0044] A kind of method adopting jasmonic acid (JA) to improve the drought resistance of oil peony, comprises the following steps:

[0045] Step 1: Select three-year-old oil peony 'Fengdan' plants with uniform growth and uniform size from the International Peony Garden to graft seedlings, and plant them in plastic flower pots with a diameter of 20 cm in October 2017, one plant per pot.

[0046] Step 2: Cultivate in a plastic greenhouse until May of the following year, during which normal water management is carried out.

[0047]Step 3: Spray the whole plant, use 200 μmol / L jasmonic acid, preferably drip water on the upper and lower surfaces of the leaves, and set 5 repetitions for each treatment.

[0048] Step 4: After 200 μmol / L jasmonic acid treatment for 3 days, carry out drought stress (control, mild drought, severe drought, rewatering treatment), observe its phenotype change every day, and measure the change of its photosynthetic performance index.

[0049] Step 5: Take ...

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Abstract

The invention discloses a method for improving drought resistance of peonies for oil with jasmonic acid. The method for inducing drought resistance of peonies for oil with jasmonic acid comprises thefollowing steps: 1) selecting annual seedlings of peonies for oil with consistent growth and no pests in October and cultivating the seedlings; 2) cultivating the seedlings in a greenhouse at room temperature until May of the following year, during which normal moisture management is carried out; 3) spraying jasmonic acid on the whole plant of peonies for oil until liquid drops from upper and lower surfaces of leaves, with one spray every 3 days, a total of two sprays, and then obtaining the peonies with drought resistance for oil. According to the invention, exogenous induction with JA in different concentrations is adopted during growth of the peonies for oil, thereby significantly improving contents of osmotic adjustment substances and photosynthetic pigments (chlorophyll a, chlorophyllb, and carotenoids) and reducing content of malonaldehyde in the peonies for oil under drought stress, reducing cell membrane lipid peroxidation, promoting photosynthesis of 'Feng Dan' peonies, and enhancing defense ability against drought stress.

Description

technical field [0001] The invention relates to the technical field of peony planting, and more specifically relates to a method for improving the drought resistance of peony for oil by using jasmonic acid. Background technique [0002] Paeonia suffruticosa (Paeonia suffruticosa) species with high seed setting rate and high oil yield rate, such as Paeoniaostii and Paeonia rockii, are called oil peonies, which are emerging woody oil plants unique to my country. Peony seed oil is rich in linolenic acid, linoleic acid and other unsaturated fatty acids that are necessary for the human body but cannot be synthesized by itself (Kim et al., 2014; Mao et al., 2017). , lowering blood fat, lowering cholesterol and other effects (Su et al., 2016), can meet people's demand for high-quality vegetable oil. In 2011, peony seed oil was approved by the National Health and Family Planning Commission as a new resource food [2011 No. 9]. [0003] Peony for oil is currently the most popular cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G7/06
CPCA01G7/06A01G17/005
Inventor 郭丽丽侯小改王菲郭大龙魏祯祯张红晓
Owner HENAN UNIV OF SCI & TECH
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