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Method for improving drought resistance of oil paeonia suffruticosa by adopting jasmonic acid

A technology of using peony and jasmonic acid for oil is applied in horticultural methods, botanical equipment and methods, applications, etc., can solve problems such as normal growth and yield reduction, being susceptible to drought stress, etc., and achieves improvement of net photosynthetic rate and promotion of photosynthesis. , the effect of improving resilience

Inactive Publication Date: 2020-11-10
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 oil paeonia suffruticosa by adopting jasmonic acid
  • Method for improving drought resistance of oil paeonia suffruticosa by adopting jasmonic acid
  • Method for improving drought resistance of oil paeonia suffruticosa by adopting jasmonic acid

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Experimental program
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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' seedlings with uniform growth and uniform size from the International Peony Garden, and plant them in plastic flower pots with a diameter of 20 cm in October 2018, 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, moderate drought, severe drought, rewatering treatment), observe its phenotype changes every day, and measure the changes of its photosynthetic performance indicators.

[0035] Step 5: The leaves ...

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' seedlings with uniform growth and uniform size from the International Peony Garden, and plant them in plastic flower pots with a diameter of 20 cm in October 2018, 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, moderate drought, severe drought, rewatering treatment), observe its phenotype change every day, and measure the change of its photosynthetic performance index.

[0042] Step 5: Take the leaves ...

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: Graft seedlings of three-year-old oil peony 'Fengdan' plants with uniform growth and uniform size from the International Peony Garden, and plant them in plastic flower pots with a diameter of 20 cm in October 2018, 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, moderate drought, severe drought, rewatering treatment), observe its phenotype change every day, and measure the change of its photosynthetic performance index.

[0049] Step 5: The leav...

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Abstract

The invention discloses a method for improving the drought resistance of oil paeonia suffruticosa by adopting jasmonic acid. The jasmonic acid is adopted to induce the oil paeonia suffruticosa to generate the drought resistance. The method comprises the following steps that 1), triennial oil paeonia suffruticosa seedlings which are consistent in growth vigor and free of plant diseases and insect pests are selected in October to be cultivated; 2), the triennial oil paeonia suffruticosa seedlings are cultured in a greenhouse at room temperature until May of the next year, and normal water management is carried out during the period; and 3), the jasmonic acid is sprayed to the whole oil paeonia suffruticosa plants until the upper and lower surfaces of leaves drip the jasmonic acid, the jasmonic acid is sprayed once every 3 days and is sprayed twice in total, and the drought-resistant oil paeonia suffruticosa is obtained. According to the method for improving the drought resistance of theoil paeonia suffruticosa by adopting the jasmonic acid, in the post-growth stage of the oil paeonia suffruticosa, the exogenous jasmonic acid with different concentrations is adopted for induction, the osmotic regulation substance content and the photosynthetic pigment content (the chlorophyll a content, the chlorophyll b content and the carotenoid content) of the oil paeonia suffruticosa under drought stress are remarkably improved, the malondialdehyde content is reduced, the cell membrane lipid peroxidation degree is reduced, photosynthesis of the paeonia ostii is promoted, and the defense capability of the paeonia ostii on drought stress is enhanced.

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] Among the species of peony (Paeonia suffruticosa), 'Fengdan' (Paeoniaostii) and 'Purple spot' (Paeonia rockii) with high seed setting rate and high oil yield rate are called oil peony, 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 ...

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 侯小改郭丽丽魏祯祯牛童非张红晓李昱莹
Owner HENAN UNIV OF SCI & TECH
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