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Method for improving drought resistance of annual paeonia suffruticosa andr

A technology for oil peony and drought resistance, which is applied in the field of improving the drought resistance of annual oil peony, can solve the problems of reduced normal growth and yield, easy to be damaged by drought stress, etc., and achieves the advantages of improving net photosynthetic rate, improving defense ability and alleviating damage. Effect

Inactive Publication Date: 2020-03-27
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a method for improving the drought resistance of annual oil peony for the problem that the above oil peony is susceptible to drought stress during its growth, affecting its normal growth and resulting in reduced yield.

Method used

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  • Method for improving drought resistance of annual paeonia suffruticosa andr
  • Method for improving drought resistance of annual paeonia suffruticosa andr
  • Method for improving drought resistance of annual paeonia suffruticosa andr

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Step 1: In October 2017, select 20 seedlings of the annual oil peony 'Fengdan' with consistent growth and no pests and diseases, and plant them in plastic flower pots with a diameter of 10 cm and holes at the bottom, 1 plant per pot, and the potting substrate is Henan The garden soil of the experimental farm of the University of Science and Technology (the choice of substrate does not affect the experiment, as long as the peony grows normally).

[0029] Step 2: Cultivate in the greenhouse until May of the following year, during which normal water management is carried out.

[0030] Step 3: Spray 50 μg / mL Cis-OPDA on the whole plant of the annual oil peony 'Fengdan', preferably with dripping water on the upper and lower surfaces of the leaves, spray once every 3 days, spray twice in total, and set 5 for each treatment repeat.

[0031] Step 4: 3 days after the Cis-OPDA spraying induction treatment, the drought stress treatment was started. During the period, the phenoty...

Embodiment 2

[0034] Step 1: In October 2017, select 20 seedlings of the annual oil peony 'Fengdan' with consistent growth and no pests and diseases, and plant them in plastic flower pots with a diameter of 10 cm and holes at the bottom, 1 plant per pot, and the potting substrate is Henan Garden soil of Experimental Farm of University of Science and Technology.

[0035] Step 2: Cultivate in the greenhouse until May of the following year, during which normal water management is carried out.

[0036] Step 3: Spray 100 μg / mL Cis-OPDA on the whole plant of the annual oil peony 'Fengdan' seedlings, preferably with dripping water on the upper and lower surfaces of the leaves, spray once every 3 days, and spray 2 times in total, and set 5 times for each treatment. repeat.

[0037] Step 4: 3 days after the Cis-OPDA spraying induction treatment, the drought stress treatment was started. During the period, the phenotypic changes of oil peony 'Fengdan' plants under drought stress were observed every...

Embodiment 3

[0040] Step 1: In October 2017, select 20 seedlings of the annual oil peony 'Fengdan' with consistent growth and no pests and diseases, and plant them in plastic flower pots with a diameter of 10 cm and holes at the bottom, 1 plant per pot, and the potting substrate is Henan Garden soil of Experimental Farm of University of Science and Technology.

[0041] Step 2: Cultivate in the greenhouse until May of the following year, during which normal water management is carried out.

[0042] Step 3: Spray 200 μg / mL Cis-OPDA on the whole plant of the annual oil peony 'Fengdan', preferably with water dripping from the upper and lower surfaces of the leaves, once every 3 days, 2 times in total, 5 for each treatment repeat.

[0043] Step 4: 3 days after the Cis-OPDA spraying induction treatment, the drought stress treatment was started. During the period, the phenotypic changes of oil peony 'Fengdan' plants under drought stress were observed every day, and the data were recorded.

[0...

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Abstract

The invention discloses a method for improving drought resistance of annual paeonia suffruticosa andr. The method adopts 12-oxo-phytodienoic acid inducing paeonia suffruticosa andr to produce droughtresistance, and comprises the following steps of (1) selecting annual paeonia suffruticosa andr seedlings which are consonant in growth vigour and free from plant diseases and insect pests in October,and performing culturing; (2) performing culturing in a greenhouse under room temperature until May in the next year, and performing normal moisture management during culturing; and (3) spraying thewhole seedling of the paeonia suffruticosa andr with the 12-oxo-phytodienoic acid of which the concentration is 50-100 [mu]g / mL until water drops from the upper surfaces and the lower surfaces of leaves, and performing spraying each three days, wherein spraying is performed twice, so as to obtain the paeonia suffruticosa andr having drought resistance. Through the adoption of the method disclosedby the invention, in the growth process of the annual paeonia suffruticosa andr seedlings, external source Cis-OPDA is adopted for inducing treatment, so that the photosynthetic rate of the annual paeonia suffruticosa andr seedlings under the force of dry, the content of chlorophyll ( chlorophyll a, chlorophyll b and carotenoid ) and peroxidase activity in leaves are improved, the lipid peroxidation degree is reduced, damage destruction caused by the force of dry is alleviated, and the drought resistance 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 annual oil peony. Background technique [0002] Peony for oil is a unique emerging woody oil crop in my country. Its seed oil is rich in unsaturated fatty acids such as linolenic acid and linoleic acid. Important oil and medicinal value. Oil peony often encounters drought stress caused by water shortage in its suitable growing areas. In response to the ecological conditions of global climate drought changes and water shortages, under the basic national conditions of limited arable land, the development of new oil crops such as peony for oil that does not compete with grain and cotton for land, and the improvement of drought-resistant cultivation techniques are of great significance to the sustainable development of agriculture. Significance. [0003] In the prior art, multiple methods are disclosed to improve the drought r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G7/06A01G9/14
CPCA01G17/005A01G7/06A01G9/14Y02A40/25
Inventor 郭丽丽侯小改郭大龙王菲牛童非郭帅李昱莹
Owner HENAN UNIV OF SCI & TECH
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