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Dormancy breaking method for nitraria tangutorum

A seed and solution technology, applied in the direction of seed and rhizome treatment, application, cultivation, etc., can solve the problems of difficult to measure the correct results of seeds, hinder the diffusion of germination inhibitors, and the low rate of breaking seed dormancy, so as to improve the field seedling growth rate, increasing the basic seedlings in the field, and uniform emergence of seedlings

Active Publication Date: 2019-09-13
HEXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the germination practice, due to the deep dormancy of the seeds, the seed germination speed is slow, the germination cycle is long, the germination is not uniform, and the germination rate is too low, resulting in the lack of seedlings and severe ridging during field cultivation.
For example: if the seeds are in a dormant state during the sowing season, sowing without pretreatment will cause uneven emergence in the field; when measuring the germination ability of seeds, it is difficult to measure the correct results for seeds in a dormant state
[0006] In the prior art, concentrated sulfuric acid is often used to treat Nitraria tangutica seeds to break seed dormancy, but in practice, polysaccharides in the seeds react with sulfuric acid to produce furfural, hydroxymethylfurfural and water, and when water encounters concentrated sulfuric acid, it will produce Heat will lead to inactivation of seeds, which will cause harm to the environment and operators; and the carbonization of the seed surface will hinder the diffusion of germination inhibitors. Therefore, this method has a low rate of breaking seed dormancy
In addition, gibberellin (GA 3 ) and low-temperature stratification treatment and alternating floods and droughts to break the dormancy in Nitraria tangutica, but the break rate is low, and the reproducibility of the results is low

Method used

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Embodiment approach

[0073] According to a preferred embodiment of the present invention, the selection of the seeds includes three steps of wind selection, screening and water selection.

[0074] The inventor found through research that after Nitraria tangutica seeds are subjected to three steps of air selection, screening and water selection, the seed clarity, consistency and robustness can be effectively improved.

[0075] In a further preferred embodiment, the screening is carried out with a 3mm sieve to remove impurities in the seeds.

[0076] In a further preferred embodiment, the water is selected as stirring the screened seeds with water, and soaking the seeds for a period of time to remove floating empty seeds and insect-eaten seeds.

[0077] Preferably, the stirring time is 6-12 minutes, preferably 10 minutes, and the soaking time is 3-6 hours, preferably 4-5 hours.

[0078] In the present invention, through the above-mentioned selection, the seeds that are plump, neat, strong and with ...

Embodiment 1

[0136] In the present embodiment, the dormancy of Nitraria tangutica seeds is broken according to the following steps:

[0137] (1) Collecting the fruits of Nitraria tangutica: From mid-to-late August to early September, in the distribution area of ​​wild Nitraria tangutica in the Hexi Corridor of Gansu Province—Pingshan Lake sandy land in Ganzhou District, Zhangye City (N 39°06′ E 100 ° 39'), select the mother plant with strong tree vigor, dense fruit, and no pests and diseases as the seed collection plant, and collect uniform, plump, and pest-free fruits through the picking method;

[0138] (2) Ferment the collected fruits and take seeds: remove the branches, leaves and sundries from the collected fruits, put them in the washbasin, add water according to the mass ratio of water to fruits at 10:100, and ferment at room temperature for 3 days. Put the stuff into a nylon net, rub it repeatedly, rinse the pulp with running water, pour the residue in the nylon net into the basin,...

Embodiment 2

[0146] The method used in this embodiment is the same as that of Example 1, the difference is only that step (4) is: the seeds of the selected treatment are soaked in 2mol.L -1 in NaOH solution for 50min.

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Abstract

The invention discloses a dormancy breaking method for nitraria tangutorum. The method comprises following steps: collecting fruits of the nitraria tangutorum; taking seeds from the collected fruits;selecting the seeds; treating the seeds; cleaning the treated seeds; performing low-temperature deposition treatment on the cleaned seeds. The method is simple and convenient to operate, and has gooddormancy breaking effect, high one-time germination rate, high field emergence speed and wide applicable range.

Description

technical field [0001] The invention belongs to the field of desert plant seed processing and cultivation, and in particular relates to a dormancy breaking method for Nitraria tanguticae. Background technique [0002] Nitraria tanggutorum (Nitraria tanggutorum) is a xerophytic and super-xerophytic shrub belonging to the family Zygophyllaceae. It is mainly distributed in the arid deserts, alpine regions and northern coastal saline regions in China. It not only has good drought resistance, cold resistance and salt-alkali tolerance, but also has more outstanding performance in soil fixation and sand improvement. songaricum) host. [0003] Nitraria tangutica is a common wild halophyte in Northwest my country. It has high economic, ecological and medicinal value, and has a well-developed root system. In an extremely dry environment, the growth can be temporarily stopped through suspended animation, dormancy, etc., and its life characteristics will resume when it encounters rain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01C1/00
CPCA01G17/005A01C1/00
Inventor 王进冯起刘蔚张勇颜霞李军元
Owner HEXI UNIV
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