Torreya grandis seed after-ripening treatment method for promoting embryo development

A technology for post-ripening treatment and embryo development, which can be used in germination equipment and other directions to solve the problems of long breeding cycle and affecting the improvement of torreya varieties.

Active Publication Date: 2012-10-03
刘海琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The economic value of torreya is very high, and it is a special product dried fruit in my country. With the development of torreya industry, torreya has been widely developed and utilized in fields such as food, health care, medicine, timber, and greening. The chil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1: Post-ripening treatment method for Chinese torreya seeds to promote embryo development, (1) prepare perlite for layering; (2) soak the perlite in clear water, so as not to drip while holding it; (3) bottom of the container Spread a layer of perlite soaked with a thickness of 3-7cm (optional within the range and according to the end value), then place a layer of Torreya seeds, and cover the seeds with a thickness of 1-3cm (optional within the range and Including perlite soaked according to the end value), then place the seeds, cover, and so on, until the upper part of the container is 8-12cm (optional within the range and include the end value), and the uppermost part is covered with a layer of thickness 3 Perlite of ~7cm (optional within the range and including the end value); (4) variable temperature treatment for 90 to 100 days (optional within the range and including the end value); (5) check to keep the perlite moist during the period, but (6) After the s...

Embodiment 1-1

[0009] Example 1-1: post-ripening treatment method for Torreya torreya seeds to promote embryo development, (1) Prepare clean river sand for stratification; (2) Soak the river sand with clear water, so that the water does not drip when held in hand; (3) ) Spread a layer of river sand soaked with a thickness of 3-7cm (optional within the range and according to the end value) on the bottom of the container, then place a layer of Torreya seeds, and cover the seeds with a thickness of 1-3cm (within the range (Optional and according to the end value) soaked river sand, then place the seeds, cover, and so on, until the upper part of the container is 8-12cm (optional within the range and include the end value) and the uppermost part is covered with a River sand with a layer thickness of 3-7cm (optional within the range and according to the end value); (4) variable temperature treatment for 90-100 days (optional within the range and according to the end value); (5) During the period, c...

Embodiment 2

[0011] Embodiment 2: on the basis of embodiment 1, promote the post-ripening treatment method of the torreya seed of embryo development, (3) the perlite that one deck thick 3cm soaks is spread on the bottom of the container, then put one deck of torreya seed, and in the torreya torreya seed The seeds are covered with a layer of perlite with a thickness of 1cm, and then the seeds are placed and covered, and so on, until the upper part of the container is 8cm and the uppermost part is covered with a layer of perlite with a thickness of 3cm; (4) Variable temperature treatment for 90 days (6) After the seeds are post-ripened by this method for 90 days, bright green mature embryos will be obtained. The variable temperature treatment means that the daytime temperature is kept at 18°C, and the nighttime temperature is kept at 1°C.

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Abstract

The invention relates to a torreya grandis seed after-ripening treatment method for promoting embryo development, used for gymnosperm taxaceae torreya.. Pearlite or river sand is soaked by clear water under the condition that no water is dropped when the pearlite or the river sand is held by hands and a soaked pearlite or river sand layer is paved at the bottom of a container, then torreya grandis seeds are placed in a layer way, and the soaked pearlite or river sand layer is covered on the torreya grandis seeds, and then other seeds are placed again, and then the soaked pearlite or river sand layer is covered on the seeds by parity of reasoning until the upper part of the container is covered by the pearlite or river sand layer; then poikilothermic treatment is carried out for 90-100 days; inspection is carried out and the pearlite or river sand is maintained to be moist, and no water is accumulated; after the seeds are subjected to after-ripening treatment for 90 days by adopting the method, not only reaches embryo development rate up to more than 95%, and dissection shows that torreya grandis grow to a fresh green mature embryo with the length of being about 2cm from a flavescent young embryo with the length of being about 0.001cm and the size same as that of a needle point, and the mature embryo almost penetrates trough the whole torreya grandis seed; and secondly, the torreya grandis seed after-ripening treatment method disclosed by the invention is applicable to sowing, raising seedling and tissue culture of the mature embryo, cotyledons, embryo, embryonic axis and endosperm of the torreya grandis and is also applicable to all torreya plants in the world.

Description

technical field [0001] The invention relates to a method for post-ripening treatment of Torreya seeds for promoting embryo development of gymnosperm plants of the genus Torreya yew, and belongs to the field of post-ripening treatment methods for Torreya seeds. Background technique [0002] Torreya ( Torreya grandis ) is a gymnosperm Taxaceae ( Taxaceae ) Torreya ( Torreya ), an evergreen tree with dioecious plants, is a relict plant of the Cenozoic Tertiary Ice Age. It is a rare and precious tree species that only survives in my country. It is also one of the rare gymnosperms in the world. It is known as the "living fossil" of gymnosperms. And it is a precious multi-purpose economic dried fruit tree species unique to my country. There are 7 species of Torreya, 4 in my country, 2 in the United States, and 1 in Japan. Torreya has a long life span, up to hundreds or even thousands of years. Old trees are also quite productive. Similar to ginkgo, they are a kind of "storag...

Claims

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Application Information

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IPC IPC(8): A01C1/02
Inventor 刘海琳
Owner 刘海琳
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