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Method for breaking dormancy of kmeria septentrionalis seeds

A unisexual magnolia and seed technology, applied in the direction of seed and rhizome treatment, application, agriculture, etc., can solve problems such as poor effect, shorten the time required for germination, etc., and achieve the effect of reducing content, increasing content, and preventing rot and deterioration.

Inactive Publication Date: 2017-03-22
GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although warm water, medicament treatment and sand storage can increase the germination rate of unisexual magnolia seeds, the effect is not good, the highest germination rate is only about 60%, and it cannot fully break the dormancy of unisexual magnolia seeds and shorten the time required for germination

Method used

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  • Method for breaking dormancy of kmeria septentrionalis seeds

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Experimental program
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Effect test

Embodiment 1

[0028] A method for breaking the dormancy of unisexual magnolia seeds, comprising the following steps:

[0029] S1, seed disinfection: sterilize the unisexual magnolia seeds;

[0030] S2, gibberellin and stratification treatment: soak the sterilized seeds in GA with a concentration of 0.5mmol / L 3 In the solution, after 12 hours, take out the soaked seeds, mix them with wet perlite at a volume ratio of 1:3, put them into a plastic ziplock bag, and place them in a 4°C constant temperature incubator for stratification for 90 days after sealing;

[0031] S3, germination: sow the stratified seeds in the germination box, use wet perlite as the matrix, add the dodder extract with a volume ratio of 15:1 to the wet perlite in the matrix, and then put the germination box into the seeds In the germination box, the seed germination box is set as follows: 12 hours under light conditions at 30°C and 12 hours under dark conditions at 20°C, alternately, and germination ends after 28 days.

Embodiment 2

[0033] A method for breaking the dormancy of unisexual magnolia seeds, comprising the following steps:

[0034] S1, seed disinfection: sterilize the unisexual magnolia seeds;

[0035] S2, gibberellin and stratification treatment: soak the sterilized seeds in GA with a concentration of 2mmol / L 3 In the solution, after 24 hours, take out the soaked seeds, mix them with wet perlite at a volume ratio of 1:3, put them into plastic ziplock bags, seal them and place them in a constant temperature incubator at 4°C for 100 days;

[0036] S3, germination: sow the stratified seeds in the germination box, use wet perlite as the matrix, add the Cuscuta extract with a volume ratio of 15:1.2 to the wet perlite in the matrix, and then put the germination box into the seeds In the germination box, the seed germination box is set as follows: 12 hours under light conditions at 30°C and 12 hours under dark conditions at 20°C, alternately, and germination ends after 28 days.

Embodiment 3

[0038] A method for breaking the dormancy of unisexual magnolia seeds, comprising the following steps:

[0039] S1, seed disinfection: sterilize the unisexual magnolia seeds;

[0040] S2, gibberellin and stratification treatment: soak the sterilized seeds in GA with a concentration of 1.2mmol / L 3 In the solution, after 18 hours, the soaked seeds were taken out, mixed with wet perlite at a volume ratio of 1:3, put into a plastic ziplock bag, sealed and placed in a constant temperature incubator at 4°C for 95 days;

[0041] S3, germination: Sow the stratified seeds in the germination box, use wet perlite as the matrix, add the Cuscuta extract with a volume ratio of 15:1.1 to the wet perlite in the matrix, and then put the germination box into the seeds In the germination box, the seed germination box is set as follows: 12 hours under light conditions at 30°C and 12 hours under dark conditions at 20°C, alternately, and germination ends after 28 days.

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Abstract

The present invention discloses a method for breaking dormancy of kmeria septentrionalis seeds, and the method includes the following steps: seed disinfection: disinfecting kmeria septentrionalis seeds; gibberellin and stratification treatment: soaking disinfected kmeria septentrionalis seeds in a GA3 solution with a concentration of 0.5-2 mmol / L for 12-24 hour, then mixing with wet perlite at a volume ratio of 1:3, storing in a plastic valve bag, sealing the bag and putting in a 4 DEG C constant-temperature incubator for stratification for 90-100 days; germination accelerating: sowing the seeds subjected to stratification in a germination box, employing wet perlite as a matrix, putting the germination box in a seed germination case, controlling the temperature at 30 DEG C for 12 hours under a light condition, then controlling the temperature at 20 DEG C for 12 hours under a dark condition, alternating the above two operations for 28 days and then stopping accelerating germination. The method can break the dormancy of kmeria septentrionalis seeds, shorten the time for germination, and effectively improve the germination percentage of kmeria septentrionalis seeds.

Description

technical field [0001] The invention relates to the technical field of seedling production and breeding, in particular to a method for breaking the dormancy of unisexual magnolia seeds. Background technique [0002] Monosexual magnolia is an evergreen broad-leaved tree species of the genus Monosexual Magnolia in the Magnolia family. It has a tall tree body, beautiful tree shape, white and fragrant flowers, and excellent material. It is a precious timber tree species and garden greening tree species. Monosexual magnolias are only distributed in the Maolan National Nature Reserve in Libo County, Guizhou and the Mulun National Nature Reserve in Guangxi. They are distributed in patches only in the Guangxi Mulun National Nature Reserve in Huanjiang, with an area of ​​about 3hm 2 , there are 200 existing forest trees. Under natural conditions, the germination rate of unisexual magnolia is extremely low, and its natural regeneration ability is poor, so it is listed as a first-cla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 潘春柳黄燕芬朱艳霞董青松柯芳缪剑华
Owner GUANGXI BOTANICAL GARDEN OF MEDICINAL PLANTS
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