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Pre-harvest spraying preservative for strawberries in greenhouse and spraying method thereof

A preservative, strawberry technology, applied in horticultural methods, fruit and vegetable preservation, botanical equipment and methods, etc., can solve problems such as mechanical damage and rot, avoid drug injury, reduce rot diseases, and control pre-harvest disease infection and postharvest decay

Active Publication Date: 2020-07-14
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the texture of strawberries is delicate, so it is not suitable for too much post-harvest operation, and it is easy to cause mechanical damage, resulting in a wide range of rot

Method used

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  • Pre-harvest spraying preservative for strawberries in greenhouse and spraying method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A pre-harvest spraying preservative for strawberries in greenhouses. The specific formula is as follows: After mixing tea tree essential oil and solidago canadensis essential oil in a volume ratio (5-7): (5-3), add Tween with 1% of the mass of the mixture to obtain essential oil emulsion Turbid liquid, that is, strawberries are sprayed with preservatives before harvesting. The extraction process of the solidago canadensis essential oil is as follows: collecting solidago canadensis from the end of September to the beginning of October every year, drying the leaves and flowers, and steam distillation to obtain the solidago canadensis essential oil.

Embodiment 2

[0017] The spraying method of the pre-harvesting preservative spraying of strawberries in the greenhouse described in the above-mentioned embodiment 1, the specific steps are as follows: the spraying cycle is 6, 3, and 0 days before the listing period of a batch of strawberries, spraying in 3 times, each time spraying with foliage Evenly covered with foggy water droplets (the solvent is water); each spraying time is 5-6 o'clock in the morning, after spraying, the greenhouse is sealed for 2 hours, and then both sides of the greenhouse are opened for ventilation for half an hour.

[0018] Among them, 6 days before the harvest period, spray 5 ml / L of strawberry preharvest spray preservative solution, the volume ratio of tea tree essential oil and solidago canadensis essential oil in the preservative is 5:5;

[0019] 3 days before harvest, spray 2.5 ml / L strawberry pre-harvest spray preservative solution, the volume ratio of tea tree essential oil and solidago canadensis essential ...

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Abstract

The invention discloses a pre-harvesting spraying type preservative for shed-growing strawberry and a spraying method thereof. The preservative is characterized in that the formula is shown as follows: tea tree essential oil and Canada goldenrod essential oil are mixed based on the volume ratio of (5-7): (5-3); Twain which accounts for 1% by mass of the mixture is added to the mixture to obtain essential oil emulsion which is the pre-harvesting spraying type preservative for strawberry. The spraying method of the preservative comprises the following steps: the preservative is sprayed at three times on the sixth, third and current day of launching the strawberry on the market; the spraying at each time meets that mist droplets uniformly cover the leaves; the spraying is sprayed at 5-6 o'clock in the morning; a shed is closed for 2 hours after each spraying, and then two sides of the shed are opened for ventilating for half an hour; 5m / L of preservative solution is sprayed six days ahead of the harvesting period; 2.5ml / L of preservative solution is sprayed 3 days ahead of the harvesting period; and 1.5ml / L of preservative solution is sprayed at the day of harvesting. With the adoption of the preservative, the harvested strawberry can be greatly prevented from rotting, and meanwhile, mechanical damage can be avoided.

Description

technical field [0001] The invention relates to a strawberry fresh-keeping technology, in particular to a pre-harvest strawberry spraying preservative in a greenhouse and a fresh-keeping method thereof. Background technique [0002] Strawberry is a delicious and nutritious fruit that is loved by people. However, because of its thin skin and tender meat, it is easily damaged by mechanical damage and microbial infection, resulting in spoilage and deterioration. Botrytis cinerea (B. cinerea), Penicillium (P. expansum), and rhizopus (R. stolonifer) are three fungi that mainly cause strawberry spoilage. Among them, B. cinerea was the main fungus causing strawberry postharvest rot. Strawberry preservation methods mainly include post-harvest controlled atmosphere preservation, heat treatment, irradiation storage, and chemical preservatives. Chemical preservatives are effective, but their impact on food safety, drug resistance, and environmental pollution has attracted consumers'...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/06A23B7/154
CPCA01G7/06A23B7/154
Inventor 邵兴锋韦莹莹魏彦珍许凤
Owner NINGBO UNIV
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