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Seedling raising method for breaking dormancy and promoting germination of Taxus wallichiana var. mairei seeds

A southern yew and seed technology, which is applied in the field of yew cultivation, can solve the problems such as difficulty in overcoming the dormant period of yew seeds, difficulty in meeting the demand of southern yew, and not many breeding reports, so as to shorten the shell breaking time and improve biological The value of diversity and the effect of shortening the storage time

Inactive Publication Date: 2019-03-29
冉茂友
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the slow growth of this tree species, the dormant period of the natural state of the seeds is as long as 1-2 years, and it takes two winters and one summer to germinate, and the natural fecundity is particularly low, with a germination rate of less than 10%, artificial propagation is difficult, and the germination rate Less than 30%, resulting in scarcity of resources and seriously restricting the development and utilization of the industry
[0003] The propagation of yew mainly includes seeds, cuttings, and tissue culture. There are not many reports on the breeding of yew seeds in the south. The problem is that it is difficult to overcome the long dormant period of yew seeds.
The invention patent with the patent publication number CN107873379A "a method for grading and raising seedlings of southern yew seeds" adopts seed cultivation, and the sand storage time is one year, and the invention patent with the patent publication number CN102763505A "a method for breaking the dormancy method”, and the sand storage time is more than one year. Although these methods have made some breakthroughs in the seed breeding of southern yew, the speed of seedling breeding is still slow, and it is difficult to meet the market demand for southern yew, which is not conducive to the realization of its biological characteristics. the value of diversity

Method used

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  • Seedling raising method for breaking dormancy and promoting germination of Taxus wallichiana var. mairei seeds
  • Seedling raising method for breaking dormancy and promoting germination of Taxus wallichiana var. mairei seeds
  • Seedling raising method for breaking dormancy and promoting germination of Taxus wallichiana var. mairei seeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A. Seed Selection: Pick the fruit of the high-quality southern yew female tree with a tree age greater than ten years in October-December, select fruit hypertrophy, sunny, ripe fruit with thick pulp;

[0040]B. Seed treatment: the fruit picked is placed in a pot, left to acidify for 10-15 days, preferably left to acidify for 15 days, then manually or mechanically finely peel off the pulp until purple-black fruit cores appear, then add 1 / 3 River sand with the weight of the core, add an appropriate amount of water, and scrub repeatedly on the wooden board or cement floor until the residual peel, pulp and core-attached oily layer on the outer layer of the core are completely removed;

[0041] C. Seed storage: Soak the seed-treated fruit core in water for 24 hours, and after cleaning, refrigerate for 1 month at a temperature of 3 ± 1° C. and a humidity of 20-30%. The temperature is preferably 3° C. during refrigeration. Check and turn it every 7 days, then mix it according...

Embodiment 2

[0052] A. Seed Selection: Pick the fruit of the high-quality southern yew female tree with a tree age greater than ten years in October-December, select fruit hypertrophy, sunny, ripe fruit with thick pulp;

[0053] B. Seed treatment: peel off the pulp finely by hand or machinery until purple-black fruit stones appear;

[0054] C. Seed storage: Soak the seed-treated fruit core in water for 24 hours, clean it and refrigerate it for 1 month at a temperature of 3°C and a humidity of 20-30%. During this period, check and turn it every 7 days, and then Mix according to the mass ratio of river sand and fruit core at 10:1, put the real sand in plastic woven bags and store it for 15 months at a temperature of 20-25°C;

[0055] D. Germ development: when the outdoor air temperature reached 10-15°C, randomly select 600 fruit cores for desomnia, and soak them for 10min in a mixed solution prepared by 50° of white wine and 40°C of water at a volume ratio of 1:1, and then Soak in 0.5wt% co...

Embodiment 3

[0061] A. Seed Selection: Pick the fruit of the high-quality southern yew female tree with a tree age greater than ten years in October-December, select fruit hypertrophy, sunny, ripe fruit with thick pulp;

[0062] B. Seed storage: store at room temperature for 18 months;

[0063] C. Sowing: Randomly select 600 seeds and sow them on the seedbed, and bury them with soil.

[0064] Corresponding data statistics are carried out to the southern yew seed storage time in the process of embodiments 1, 2, and 3, emergence time after sowing, germination rate, survival rate after germination, and tree height after one year of germination, and the statistical results are as shown in table 1 :

[0065] Table 1

[0066]

[0067] Can draw by the data of table 1, compared with the breeding method of the prior art of embodiment 2, the breeding method under the natural state of embodiment 3, breeding method of the present invention shortens the storage time of seed to 6 months, Furthermo...

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Abstract

The invention discloses a seedling raising method for breaking dormancy and promoting germination of Taxus wallichiana var. mairei seeds, and belongs to the technical field of Taxus wallichiana var. mairei cultivation. The seedling raising method comprises the following steps: seed selection, seed treatment, seed storage, germ development, soil preparation, sowing and seedling stage management. According to the seedling raising method for breaking dormancy and promoting germination of the Taxus wallichiana var. mairei seeds, the dormancy stage of the Taxus wallichiana var. mairei seeds is greatly shortened, permeability of the seeds is improved, kernel breakage of the seeds is facilitated, germs are developed evenly, and the germination rate of the Taxus wallichiana var. mairei seeds is increased.

Description

technical field [0001] The invention relates to the technical field of yew cultivation, in particular to a seedling raising method for breaking dormancy of southern yew seeds and promoting germination. Background technique [0002] Southern yew (Taxus wallichiana var.mairei (Leme&H.Lv.) L.K.Fu), belonging to the genus Taxus, evergreen tree, is a "living fossil" in plants, also known as "money tree", "longevity tree", " Love Tree", "Acacia Tree", "Plant Panda". Yew is an ancient tree species left over from the Quaternary Period. It is divided into four varieties and eleven lines. It has a history of 2.5 million years on the earth. At present, only 42 countries in the world have this yew tree, which belongs to the national first-class rare and endangered key protected wild plants, known as "national treasures", and the United Nations has also explicitly banned logging. The bark of the southern yew contains tannins, which have anti-oxidation effects, are a natural preservativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00A01G17/00
CPCA01C1/00A01G17/005Y02P60/40Y02A40/22
Inventor 冉茂友张龙成冉洁邹来秀石世兵张航冉委冉海燕张晓仙李勇
Owner 冉茂友
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