Method for quickly breaking mountain ash seeds from dormancy

A technology of seeds and rowan, which is applied in the field of rapid release of seed dormancy, can solve the problems of long germination time, low germination rate, uneven germination, etc., and achieve the effect of increasing germination uniformity, increasing germination rate, and simple operation

Inactive Publication Date: 2013-02-13
NORTHEAST FORESTRY UNIVERSITY +1
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of long germination time, low germination rate and uneven germination in the method of artificially treating rowan seeds, and the problem of chemical toxicity in the method of soaking seeds in sodium nitroprusside solution, and provides a The Method of Quickly Relieving Sorbus Seed Dormancy

Method used

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specific Embodiment approach 1

[0012] Specific embodiment one: the method for removing the dormancy of rowan seed quickly in this embodiment is realized according to the following steps:

[0013] 1. Soak the mature seeds of rowan in water at 20-30°C for 2-3 days to obtain imbibed seeds;

[0014] 2. Stir and soak the imbibed seeds with a sodium hypochlorite solution with a volume concentration of 1% to 3% for 10 to 15 minutes, then rinse with water for 3 to 5 times, and then peel off the seed coat to obtain peeled seeds;

[0015] 3. Place a piece of filter paper fully soaked with water with a pH value of 7.0 in a 500ml beaker, put 50-100 peeled seeds on it, and then place a 10-50ml small beaker in the 500ml beaker The small beaker is filled with 5-10 ml of sodium nitroprusside solution with a concentration of 0.3-1.5 g / L, and then the mouth of the 500-ml beaker is sealed with plastic wrap. Place it under the condition of 2 to 5 hours, and then rinse the peeled seeds with water for 3 to 5 times;

[0016] 4....

specific Embodiment approach 2

[0022] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 1, the mature seeds of Sorbus abaculata are soaked in water at 25° C. for 2.5 days. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one is that in step two, the seeds that are imbibed are stirred and soaked in 2% sodium hypochlorite solution with a volume concentration for 12 minutes, and then rinsed with water for 4 times. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention relates to a method for quickly breaking mountain ash seeds from dormancy and aims at the problems of a manual mountain ash seed processing method that germinating time is long, germination rate is low and germination is irregular and the chemical toxicity problem caused when seeds are with sodium nitroprusside solution. The method provided by the invention comprises the following steps of: soaking mature seeds of mountain ash and imbibing; stirring and soaking the imbibed seeds with sodium hypochlorite solution, then peeling the seeds, so as to obtain peeled seeds; treating the peeled seeds with sodium nitroprusside solution; and finally germinating and cultivating. By adopting the method provided by the invention, the mountain ash seeds can germinate from the third day after germinating and cultivating; the eighth day, the accumulated germination rate reaches up to 90%, which is more than 1.5 times that of peeled seeds which are not treated with the sodium nitroprusside solution. According to the method provided by the invention, the peeled seeds are not in directly contact with the sodium nitroprusside solution, no chemical toxicity is produced, dormancy of the mountain ash seeds can be quickly broken, the germination rate of the mountain ash seeds can be improved, and germination uniformity of the mountain ash seeds is increased.

Description

technical field [0001] The invention relates to a method for rapidly releasing dormancy of seeds. Background technique [0002] Sorbus (Sorbus pohuashanensis [Hance] Hedl.), also known as Sorbus pohuashanensis [Hance] Hedl., also known as Sorbus pohuashanensis, Sorbus tree, Sorbus acacia, Sorbus acacia, Stink sandalwood, Velvet flower tree, etc., is a small deciduous tree of the Rosaceae Apple subfamily Sorbus . Sorbus has high ornamental value and wood use value. In production practice and practical application, Sorbus seedlings are mostly propagated by sowing and raising seedlings, but the deep dormancy characteristics of Sorbus seeds increase the difficulty of sowing and raising seedlings. Propagation of rowan seedlings with seeds has the problems of long seed treatment time, low germination rate, and irregular germination (low germination potential). At present, the manual treatment of rowan seeds is mainly mixed with wet sand and stored in cold storage, but it takes ...

Claims

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Application Information

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IPC IPC(8): A01C1/00
Inventor 杨玲
Owner NORTHEAST FORESTRY UNIVERSITY
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