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Seed breeding method for improving drought resistance of summer squashes

A technology for zucchini and drought resistance, which is applied in the breeding field for improving the drought resistance of zucchini, can solve the problems of few research reports on the drought resistance characteristics of zucchini, the decline of crop yield and quality, and the destruction of normal osmotic pressure of cells, and achieves good commercial performance and fullness. Good, improve the effect of drought resistance

Inactive Publication Date: 2017-06-23
MINQIN QUANSHENG YONGTAI AGRI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have found that when drought stress occurs, the activities of antioxidant enzymes such as ascorbate peroxidase (APX), CAT, POD and SOD in seeds and seedlings decrease, which increases the generation of ROS, resulting in membrane lipid peroxidation. Reduce the accumulation of osmotic adjustment substances such as amino acid, increase the content of MDA substances, and promote the internal and external linkage of protein molecules caused by its combination with proteins, destroying the normal osmotic pressure of cells, increasing the permeability of cell membranes, and increasing the conductivity of extravasation. leading to a serious decline in crop yield and quality
[0005] Existing breeding techniques have developed new types of zucchini with disease resistance, semi-dwarf vines, increased yield, and earlier harvesting time, but there are few reports on improving the drought-resistant characteristics of zucchini. The research on the breeding method of zucchini has become the top priority of people's research

Method used

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  • Seed breeding method for improving drought resistance of summer squashes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A breeding method for improving drought resistance of zucchini includes the following steps:

[0015] ① Crush the large vetch seeds through a 100-mesh sieve, and then mix with bean curd residue, trehalose, chitosan, corn cob, bran, and yeast in a weight ratio of 5:3:1:1:3:2:0.3 After mixing the proportions, ferment at a constant temperature of 30°C for 15 hours to prepare a seed culture medium; select zucchini seeds with full grains, uniform size, and disease-free pests, rinse with distilled water for 5-10 seconds, drain the water, and spread them on the culture medium. The distance between the two seeds is 2cm; according to the number of parts by weight, mix 1 part of 0.5mg / L coralline lactam and 2 parts of 1mg / L jasmine, then dilute to 50 times with distilled water and spray once every 12 hours , Continuous spraying for 5 days, and at the same time hang a 30W UV lamp 40cm above the seeds, each time the seeds are sprayed, the UV lamp is irradiated for 1 hour; the temperat...

Embodiment 2

[0018] A breeding method for improving drought resistance of zucchini includes the following steps:

[0019] ① Crush the large vetch seeds through a 100-mesh sieve, and then mix with bean curd residue, trehalose, chitosan, corn cob, bran, and yeast in a weight ratio of 5:3:1:1:3:2:0.3 After mixing the ratio, ferment at 35°C for 25 hours to form a seed medium; select zucchini seeds with full grains, uniform size, and disease-free pests, rinse them with distilled water for 5-10 seconds, drain the water, and spread them on the medium. The distance between the two seeds is 3cm; according to the number of parts by weight, mix 3 parts of 0.5mg / L coralline lactone and 4 parts of 1mg / L jasmine, then dilute to 50 times with distilled water, spray once every 12 hours , Continuous spraying for 5 days, and at the same time hang a 30W ultraviolet lamp at a distance of 50cm above the seeds, each time the seeds are sprayed, the ultraviolet lamp is irradiated for 2 hours; the temperature of the ...

Embodiment 3

[0022] A breeding method for improving drought resistance of zucchini includes the following steps:

[0023] ① Crush the large vetch seeds through a 100-mesh sieve, and then mix with bean curd residue, trehalose, chitosan, corn cob, bran, and yeast in a weight ratio of 5:3:1:1:3:2:0.3 After mixing the proportions, ferment at a constant temperature of 32°C for 20 hours to prepare a seed culture medium; select zucchini seeds with full grains, uniform size, and disease-free pests, rinse with distilled water for 5-10 seconds, drain the water, and spread on the culture medium. The distance between the two seeds is 2.5cm; according to the number of parts by weight, take 2 parts of 0.5mg / L coralline lactone and 3 parts of 1mg / L jasmine, and then dilute to 50 times with distilled water and spray every 12 hours One time, continuous spraying for 5 days, and at the same time the 30W UV lamp is hung 45cm above the seeds, each time the seeds are sprayed, the UV lamp is irradiated for 1.5 hour...

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Abstract

The invention discloses a seed breeding method for improving drought resistance of summer squashes, and belongs to the technical field of agricultural planting. The seed breeding method for improving the drought resistance of the summer squashes is provided for solving the problem that due to the fact that the summer squashes are under drought stress, the yield and quality of the seeds are seriously affected. Accordingly, an illumination and audio frequency physical method and a chemical method are organically combined, protective enzyme systems inside the summer squashes are effectively promoted and improved, characteristics of the drought resistance of the summer squashes are improved, and therefore the seed yield of the summer squashes is increased, and the seed quality is improved.

Description

Technical field [0001] The invention belongs to the field of agricultural planting technology, in particular to a breeding method for improving the drought resistance of zucchini. Background technique [0002] Zucchini, also known as American squash, Cucurbitaceae squash genus, is a one-year-old herbaceous plant. Its seeds are also called white melon seeds. The seeds are mainly harvested in production. They were introduced into China from Europe and America in the middle of the 19th century. It is extremely common in the Northeast, Huanghuai and the Yangtze River Basin. White melon seeds have large plates, thin skins, full seeds, clear colors, and hard to break. The content of active ingredients such as amino acids, carotene, protein and vitamins is high. With the continuous improvement of people's living standards , Eating habits are also quietly changing. The edible value of zucchini seeds is gradually being recognized by people and has become one of the important foods for le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G7/06A01G7/04A01G31/00C05F15/00A01N65/08A01N59/08A01N35/06A01P21/00
CPCA01G2/00A01G7/045A01G7/06A01G24/00A01N35/06A01N59/08A01N65/00A01N65/08C05F5/002C05F11/00C05F11/08A01N2300/00Y02P60/14
Inventor 魏春燕魏泽宏
Owner MINQIN QUANSHENG YONGTAI AGRI
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