Prevention and control method for postharvest diseases of dragon fruit

A technology for postharvest diseases and pitaya, which is applied to botany equipment and methods, preservation of fruits and vegetables, preservation of human or animal bodies, etc., can solve problems such as prolonging the preservation period of pitaya, prone to sweating, and cold damage, and achieves Avoid sweating and cold damage, reduce pesticide residues, and prevent and control rot

Inactive Publication Date: 2017-01-04
GUIYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention aims at the problems such as sweating, chilling injury, pathogenic rot, etc. that are prone to occur in the pitaya storage process, and provides a method for preventing and controlling pitaya postharvest diseases. Harvest, callus treatment, cold exercise, suitable storage temperature and suitable sterilization treatment to achieve the purpose of prolonging the preservation period of pitaya.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Taking the three dragon fruit varieties 'Zihonglong', 'Jinghonglong' and 'Pink Dragon' as objects, (1) Spray 2000 times the dilution of Trichoderma fungus one day before harvesting; (2) Spray one day before harvesting 2000 times dilution of Streptococcus lactis; (3) Spray 1500 times dilution of compound fungicide 1 day before harvesting (Trichoderma agent: Streptococcus lactis=1:1); (4) Spray water 1 day before harvesting; 9 Harvest when ripe, sort, select fruits of uniform size, remove mechanical damage, defective fruits, and fruits of diseases and insect pests, dissipate the heat in the field, pack them in turnover boxes according to 10kg per bag, and transfer them to 15.0 ±1.0°C, RH 90% cold storage, after 5 days of storage, adjust the temperature of the cold storage to 9.0±1.0°C for storage.

[0033] According to statistics of the rot rate caused by pathogenic bacteria in different treatment groups, it was found that during the storage period, the infiltration of pa...

Embodiment 2

[0035] For the three dragon fruit varieties 'Zihonglong', 'Jinghonglong' and 'Pink Dragon', spray 1500 times compound fungicide dilution one day before harvesting (Trichoderma agent: lactis streptococcus = 1:3) , when the fruit 9 is ripe, pick and sort, select the fruit of uniform size, remove the mechanical injury, defective and fruit of diseases and insect pests, dissipate the heat in the field, pack in turnover boxes according to 10kg per bag, (1) callus treatment at room temperature After 24 hours, transfer to 15.0±1.0℃, RH 90% cold storage; (2) directly transfer to 15.0±1.0℃, RH 90% cold storage; use ozone generator to produce 10mg / m 3 After 5 days of storage, the cold storage temperature was adjusted to 9.0±1.0°C for storage; (3) After 72 hours of normal temperature callus treatment, it was directly transferred to a 9±1.0°C cold storage for storage.

[0036] After 30 days of storage, put them on the shelves at room temperature, and count the shelf quality of the fruits i...

Embodiment 3

[0038] For the three dragon fruit varieties 'Zihonglong', 'Jinghonglong' and 'Pink Dragon', spray 1500 times compound fungicide dilution one day before harvesting (Trichoderma agent: lactis streptococcus = 1:3) , when the fruit 9 is ripe, pick and sort, select the fruit of uniform size, remove mechanical damage, defective and fruit of diseases and insect pests, dissipate the heat in the field, pack in turnover boxes according to 10kg per bag, transfer after 48 hours of normal temperature callus treatment Put into 15.0±1.0℃, RH 90% cold storage, during storage (1) use ozone generator to produce 10mg / m 3(2) Use 60mg / L chlorine dioxide aqueous solution for sterilization; (3) No sterilization treatment; after storage for 7 days, adjust the temperature of the cold storage to 9.0±1.0°C for storage; (4) The fruit is ripe at 9 Timely picking, sorting, selecting fruits of uniform size, removing mechanical damage, defective fruits, and fruits caused by diseases and insect pests, dissipa...

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PUM

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Abstract

The invention discloses a prevention and control method for postharvest diseases of a dragon fruit, belonging to the technical field of agricultural food science. According to the invention, a method of combining pre-harvest and cold refrigeration with low-temperature storage is adopted for prolonging the storage period of the dragon fruit. Before harvest, bacteriostatic agent is sprayed for preventing and controlling pathogenic bacteria. The prevention and control method for pathogenic bacteria comprises the following steps: spraying a compound bactericide diluent the day before the harvest, wherein the bactericide contains a trichoderma agent and lactic streptococci in ratio of (1-3) to (3-1) and is diluted with 1500-2000 times; picking when the dragon fruit is 80%-90% mature; performing healing treatment at a shade place and then transferring into a refrigerator and sterilizing; refrigerating for 5-7 days at 15+/-1.0 DEG C; adjusting the temperature of the refrigerator to 9+/-1.0 DEG C for storage; sterilizing in the refrigerating period, thereby preventing pathogenic bacteria from invading to avoid causing rotten fruit. According to the prevention and control method for postharvest diseases of the dragon fruit provided by the invention, the operation is simple, and high-efficient, low-cost and safe effects are achieved.

Description

technical field [0001] The invention belongs to the field of agricultural food science and technology, in particular to a method for preventing and controlling pitaya postharvest diseases. [0002] technical background [0003] Dragon fruit is a new tropical and subtropical fruit tree, which integrates "fruit", "flower", "vegetable", "health care" and "medicine". It contains plant-based albumin, active polysaccharides, rich Vitamins and water-soluble dietary fiber, etc., have remarkable health care functions in preventing constipation and lowering blood sugar, blood fat, blood pressure, uric acid, etc., and are very popular among consumers. . At present, the dragon fruit industry in Guizhou Province has leapt to the first place in the country, but there is still a lack of perfect commercial storage and preservation technology. With the rapid development of the dragon fruit industry, the contradictions of a large number of fresh fruits being ripe and marketed in a centralize...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/00A23B7/04A23B7/157A23B7/152A01N63/04A01N63/00A01P1/00A01P3/00
CPCA01G13/00A01N63/00A01N63/30A23B7/0433A23B7/152A23B7/157A23V2002/00A23V2200/10A23V2250/128A23V2250/1582A01N2300/00
Inventor 谢国芳王瑞曹森吉宁马超马立志
Owner GUIYANG UNIV
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