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Method for improving resistance of cucumbers to diseases by applying chemical inducer through external source

A chemical inducer, a technology for cucumbers, applied in the field of pest control of vegetables and fruits, can solve the problems of lack of rain shower pesticides, high residual pollution, long growth period, etc., so as to reduce the occurrence of cucumber diseases, improve disease resistance, and be simple to operate. Effect

Inactive Publication Date: 2018-09-21
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production environment and production methods of facility cucumbers are different from those of traditional field cucumbers. They have a high multiple cropping index, a long growth period, and are more susceptible to damage from diseases and insect pests. As a result, the amount of chemical fertilizers and pesticides used is significantly higher than that of field cucumbers.
Because facility cucumbers grow in a relatively closed environment, their products are prone to high pesticide residue pollution due to slow air flow and lack of rain showers, which greatly limits the promotion and development of facility cucumbers

Method used

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  • Method for improving resistance of cucumbers to diseases by applying chemical inducer through external source
  • Method for improving resistance of cucumbers to diseases by applying chemical inducer through external source
  • Method for improving resistance of cucumbers to diseases by applying chemical inducer through external source

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Experimental program
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Effect test

Embodiment 1

[0028]Example 1. Using chemical inducer PBZ to improve cucumber disease resistance.

[0029] 1.1 Cucumber cultivation

[0030] Substrate culture:

[0031] Matrix components: vermiculite: black soil: perlite=9 : 3 : 0.5

[0032] Nutrient solution components:

[0033]

[0034] After the substrate was soaked in the nutrient solution, the cucumber seeds were sown in seedling holes (4 cm in length, 4 cm in width, and 3.5 cm in depth), and the seedlings were raised under the conditions of 16h L / 8h D light and 28°C. After 10 days, transplant the seedlings into large pots (diameter 30cm, depth 25cm), and the matrix is ​​soaked in nutrient solution. It can be treated within 10-15 days after planting (20-25 days from sowing).

[0035] 1.2 PBZ induction treatment

[0036] Add 0.5 mM PBZ to the irrigation water to treat cucumber varieties with different disease resistance. After 2 consecutive treatments (with a one-week interval in between), it was found that the two powdery mild...

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Abstract

The invention belongs to the technical field of prevention and control of plant diseases and insect pests for vegetables and fruits, in particular to a method for improving resistance of cucumbers todiseases by applying a chemical inducer through an external source. The method comprises the following steps: mixing the chemical inducer probenazole (PBZ) into pouring liquid and applying the mixtureto roots of cucumber sprouts after 10-15 days of field planting, wherein the concentration of PBZ in pouring liquid ranges from 0.3 to 0.5 mM and the application frequency of the PBZ ranges from 1 to3. By externally applying probenazole, the resistance of cucumbers to multiple diseases is greatly improved, thereby reducing the occurrences of cucumber diseases. The method is easy in operation andlow in cost.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of vegetable and fruit diseases and insect pests, and in particular relates to a method for improving the resistance of cucumbers to various diseases. technical background [0002] Cucumber, also known as courgette, green cucumber (scientific name Cucumis sativus Linn, English name Cucumber), Cucurbitaceae Melon plant. Cucumber fruit is oily green or emerald green in color, with soft thorns on the surface. Cucumber has low fiber content, fresh quality and rich nutrition, and is deeply loved by consumers. China is the country with the largest cultivation area and total output of cucumber in the world, with an annual planting area of ​​1 million hectares 2 . [0003] In actual production, cucumber planting has long been harmed by diseases and insect pests such as gray mold, powdery mildew, downy mildew, viral disease, bacterial angular spot, and root-knot nematode. Pests and di...

Claims

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Application Information

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IPC IPC(8): A01G7/06A01G13/00
CPCA01G7/06A01G13/00
Inventor 蒯本科高炯邱凯梁宁菁
Owner FUDAN UNIV