Method for improving germination rate of stevia rebaudiana seeds

A stevia and germination rate technology, applied in the fields of seed and rhizome treatment, application, agriculture, etc., can solve the problems of long germination time, less stored nutrients, and easy loss of germination power, so as to improve the ability to resist adversity, and the operation method is simple , suitable for promoting the effect

Inactive Publication Date: 2017-04-26
MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Stevia rebaudiana is a cross-pollinated plant. The seeds have floating hairs and are easy to carry bacteria. In addition, the seeds are small in size and low in vigor. Due to the small size of stevia rebaudiana seeds, the dry grain weight is only 0.25-0.4 grams, and the storage nutrients are very few. Stevia rebaudiana seeds are easily affected by low temperature, cold damage, high temperature and other adversities during the germination process of chrysanthemum seedlings in early spring, resulting in the loss of germination ability, long germination time, reduced germination rate and germination potential, and irregular emergence. Poor seedling growth affects field production of stevia

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for improving the germination rate of Stevia rebaudiana seeds, comprising the steps of,

[0018] 1) Take 50 g of stevia seeds, put them into a strong plastic bag, rub them repeatedly to separate the seeds from the pappus, and use a fan to blow away the pappus;

[0019] 2) Soak the seeds obtained in step 1) in clean water, stir, and let stand for 20 minutes, remove the impurities floating on the water surface, take the seeds that sink to the bottom, and repeat once;

[0020] 3) Put the seeds obtained in step 2) under ultraviolet light for 3 hours, and put them in an environment of 0°C for 10 hours;

[0021] 4) Soak the seeds obtained in step 3) for 6 hours in the seed soaking solution, which includes 0.02 g of gibberellin, 1 g of polyethylene glycol and 0.1 L of purified water;

[0022] 5) Germinate the seeds obtained in step 4).

[0023] The weight ratio of the seeds to the seed soaking liquid is 1:3.

Embodiment 2

[0025] A method for improving the germination rate of Stevia rebaudiana seeds, comprising the steps of,

[0026] 1) Take 50 g of stevia seeds, put them into a strong plastic bag, rub them repeatedly to separate the seeds from the pappus, and use a fan to blow away the pappus;

[0027] 2) Soak the seeds obtained in step 1) in clean water, stir, and let stand for 30 minutes, remove the impurities floating on the water surface, take the seeds that sink to the bottom, and repeat 1-3 times;

[0028] 3) Put the seeds obtained in step 2) under ultraviolet light for 4 hours, and put them in a 5°C environment for 10 hours;

[0029] 4) Soak the seeds obtained in step 3) for 7 hours in a seed soaking solution, which includes 0.06 g of gibberellin, 2 g of polyethylene glycol, 1.0 g of salicylic acid and 0.1 L of purified water;

[0030] 5) Germinate the seeds obtained in step 4).

[0031] The weight ratio of the seeds to the seed soaking liquid is 1:3.

Embodiment 3

[0033] A method for improving the germination rate of Stevia rebaudiana seeds, comprising the steps of,

[0034] 1) Take 50 g of stevia seeds, put them into a strong plastic bag, rub them repeatedly to separate the seeds from the pappus, and use a fan to blow away the pappus;

[0035] 2) Soak the seeds obtained in step 1) in clean water, stir, and let stand for 40 minutes, remove the impurities floating on the water surface, take the seeds that sink to the bottom, and repeat 3 times;

[0036] 3) Put the seeds obtained in step 2) under ultraviolet light for 5 hours, and put them in an environment of 10°C for 10 hours;

[0037] 4) Soak the seeds obtained in step 3) for 8 hours in a seed soaking solution, which includes 0.1 g of gibberellin, 3 g of polyethylene glycol, 1.5 g of salicylic acid and 0.1 L of purified water;

[0038] 5) Germinate the seeds obtained in step 4).

[0039] The weight ratio of the seeds to the seed soaking liquid is 1:3.

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PUM

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Abstract

The invention belongs to the field of agricultural planting technologies, and in particular relates to a method for improving the germination rate of stevia rebaudiana seeds. The method for improving the germination rate of the stevia rebaudiana seeds comprises the following steps: 1) removing pappi; 2) performing cleaning; 3) performing ultraviolet irradiation; 4) soaking the seeds in seed soaking liquid; and 5) performing germination. The method provided by the invention can significantly improve the ability of withstanding adverse situations of the stevia rebaudiana seeds during germination, and enables the stevia rebaudiana seeds to still keep a relatively high germination rate and germination vigor when encountering an adverse situation hazard, thereby achieving an aim of forming high-quality seedlings. The method provided by the invention is simple in operation, low in cost and suitable for promotion.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a method for improving the germination rate of Stevia rebaudiana seeds. Background technique [0002] Stevia is a perennial herb of Asteraceae native to Paraguay. The stevia sugar extracted from its leaves is a natural and powerful sweetener, and its sweetness is 150-300 times that of sucrose. After a large number of long-term toxicological and pharmacological studies, it has been proved that stevioside has no potential or genetic hazards in the body, and its safety has been recognized by international organizations such as FAO and WHO. In 2004, the World Health Organization officially passed The decision to allow stevioside to be used worldwide, along with its safety being recognized by the world, has further increased its economic benefits. In recent years, people have paid more and more attention to healthy diet. As a sweetener, stevioside has become...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 贾德军
Owner MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
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