Method for improving drought resistance of Paeonia suffruticosa Andr. for oil by using methyl jasmonate

A technology of methyl jasmonate and oil peony, applied in the directions of horticultural methods, botanical equipment and methods, applications, etc., can solve problems such as normal growth and yield reduction, being susceptible to drought stress damage, etc., and achieves increasing net photosynthetic rate, increasing Resistance, damage reduction effects

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

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a method for improving the drought resistance of peony oil for

Method used

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  • Method for improving drought resistance of Paeonia suffruticosa Andr. for oil by using methyl jasmonate
  • Method for improving drought resistance of Paeonia suffruticosa Andr. for oil by using methyl jasmonate
  • Method for improving drought resistance of Paeonia suffruticosa Andr. for oil by using methyl jasmonate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Select 3-year-old oil-growing peony 'Fengdan' plants with consistent growth and no pests and diseases, and plant them in plastic flower pots with a diameter of 20 cm and holes at the bottom. The substrate is the original soil from the farm of Henan University of Science and Technology.

[0028] Step 2: After planting, move it to the greenhouse for maintenance, and carry out normal water management to prevent water shortage and prevent the occurrence of diseases and insect pests.

[0029] Step 3: Use the whole plant spraying method, use 50 μmol / L methyl jasmonate to induce treatment, preferably drip water on the upper and lower surfaces of the leaves, and set 5 repetitions for each treatment.

[0030] Step 4: After 3 days of treatment with methyl jasmonate, carry out gradual drought stress treatment, during which observation and analysis of phenotypic characteristics changes are carried out every day, and according to the changes in the phenotypic characteristics ...

Embodiment 2

[0033] Step 1: Select 3-year-old oil-growing peony 'Fengdan' plants with consistent growth and no pests and diseases, and plant them in plastic flower pots with a diameter of 20 cm and holes at the bottom. The substrate is the original soil from the farm of Henan University of Science and Technology.

[0034] Step 2: After planting, move it to the greenhouse for maintenance, and carry out normal water management to prevent water shortage and prevent the occurrence of diseases and insect pests.

[0035] Step 3: Use the whole plant spraying method, use 100 μmol / L methyl jasmonate for induction treatment, preferably drip water on the upper and lower surfaces of leaves, and set 5 repetitions for each treatment.

[0036] Step 4: After 3 days of treatment with methyl jasmonate, carry out gradual drought stress treatment, during which observation and analysis of phenotypic characteristics changes are carried out every day, and according to the changes in the phenotypic characteristics...

Embodiment 3

[0039] Step 1: Select 3-year-old oil-growing peony 'Fengdan' plants with consistent growth and no pests and diseases, and plant them in plastic flower pots with a diameter of 20 cm and holes at the bottom. The substrate is the original soil from the farm of Henan University of Science and Technology.

[0040] Step 2: After planting, move it to the greenhouse for maintenance, carry out normal water management, prevent water shortage, and prevent the occurrence of diseases and insect pests at the same time.

[0041] Step 3: use the whole plant spraying method, use 200 μmol / L methyl jasmonate for induction treatment, preferably drip water on the upper and lower surfaces of leaves, and set 5 repetitions for each treatment.

[0042] Step 4: After 3 days of treatment with methyl jasmonate, carry out gradual drought stress treatment, during which observation and analysis of phenotypic characteristics changes are carried out every day, and according to the changes in the phenotypic cha...

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Abstract

The invention discloses a method for improving drought resistance of Paeonia suffruticosa Andr. for oil by using methyl jasmonate. The drought resistance of Paeonia suffruticosa Andr. for oil is induced by using methyl jasmonate. The method comprises the following steps: 1) cultivating annual seedlings of Paeonia suffruticosa Andr. for oil in October, wherein the seedlings are accordant in growthvigor and free of disease or insect; 2) cultivating the seedlings in a greenhouse till May of a next year, and performing normal water management in the process; and 3) spraying the methyl jasmonate to the Paeonia suffruticosa Andr. for oil once per 3 days for two times in all, so as to obtain the Paeonia suffruticosa Andr. for oil with drought resistance. After induction treatment with the methyljasmonate, the net photosynthetic rate, the transpiration rate, the intercellular CO2 concentration, the stomatal conductance, the content of free proline and the content of soluble sugar in leaves are all to increase, the contents of malondialdehyde, chlorophyll a, chlorophyll b and carotenoid are all to decrease, the net photosynthetic rate of the leaves of the Paeonia suffruticosa Andr. for oil is remarkably increased, damage of drought stress to Paeonia suffruticosa Andr. is reduced, and the capability of the Paeonia suffruticosa Andr. in resisting to drought stress is improved.

Description

technical field [0001] The invention relates to the technical field of peony planting, in particular to a method for improving the drought resistance of peony for oil by using methyl jasmonate. Background technique [0002] Peony (Paeonia suffruticosa Andr.) is a small perennial deciduous shrub of the family Paeoniaceae. It is a traditional famous flower in my country and is known as the "king of flowers". The Heluo area is rich in peony resources and is one of the original places of wild peonies in China. In recent years, peony-related industries have developed rapidly, and its deep-processed products are widely used in ornamental, oily, edible and medicinal fields. Peony for oil is the collective name of 'Fengdan' (Paeonia ostii) and 'Purple Spot' (Paeonia rockii) peonies with high seed setting rate and high oil yield rate among tree peonies. It is a unique emerging woody oil crop in my country. Peony seed oil is a golden yellow transparent oily liquid, rich in linolenic...

Claims

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Application Information

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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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