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Method for breaking dormancy of Tumd carex stenophylloides seeds

A technology for seeds and grasses, applied in the field of plant germination and breeding, can solve the problems of not solving the problem of seed germination, building lawns by live broadcast, etc., and achieves the effects of increased permeability and broad application prospects.

Active Publication Date: 2020-04-17
INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the problem of seed germination is not solved, it is impossible to use the method of direct seeding of turmeric grass to build a lawn
At present, there are few studies on the dormancy and germination characteristics of Carex spp. seeds, and there are few reports on breaking the dormancy of Carex spp.

Method used

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  • Method for breaking dormancy of Tumd carex stenophylloides seeds

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Embodiment 1

[0025] A method for breaking the dormancy of Carex tumedensis seeds, comprising three steps of seed pretreatment, gibberellin solution soaking, and seed sand storage:

[0026] (1) The seed pretreatment: After harvesting and air-drying the seeds of Carex tumedensis, weigh 10 g of seeds, soak them in a beaker filled with 400 mL of distilled water, and place the beaker in a constant temperature incubator at 25°C. Stir once every 1 hour, and take out the sunken seeds after 20 hours;

[0027] (2) Soaking in the gibberellin solution: take the sinking seeds taken out in step (1), blot up the surface moisture, put them in a beaker, add 400 mL of gibberellin solution, and soak for 20 hours. During the soaking period, every 1.5 h Stir once, rinse with clean water after soaking and set aside;

[0028] (3) The seed sand storage treatment: store the seeds treated in (2) in low-temperature sand storage, the sand storage temperature is controlled at -7°C, and the sand storage seeds are stir...

Embodiment 2

[0031] A method for breaking the dormancy of Carex tumedensis seeds, comprising three steps of seed pretreatment, gibberellin solution soaking, and seed sand storage:

[0032] (1) The seed pretreatment: After harvesting and air-drying the seeds of Carex tumedensis, weigh 15g of seeds, soak them in a beaker filled with 400mL of distilled water, and place the beaker in a constant temperature incubator at 25°C. Stir once every 2 hours, and take out the sunken seeds after 24 hours;

[0033] (2) Soaking in the gibberellin solution: soak the sinking seeds taken out in step (1), blot the surface moisture, put them in a beaker, add 400 mL of gibberellin solution, soak for 24 hours, every 2 hours during the soaking Stir once, rinse with clean water after soaking and set aside;

[0034] (3) The seed sand storage treatment: store the seeds treated in (2) in low-temperature sand storage, the sand storage temperature is controlled at -5°C, and the sand storage seeds are stirred and turned...

Embodiment 3

[0037] A method for breaking the dormancy of Carex tumedensis seeds, comprising three steps of seed pretreatment, gibberellin solution soaking, and seed sand storage:

[0038] (1) The seed pretreatment: After harvesting and air-drying the seeds of Carex tumedensis, weigh 20g of seeds, soak them in a beaker filled with 400mL of distilled water, and place the beaker in a constant temperature incubator at 25°C. Stir once every 1.5 hours, and take out the sunken seeds after 22 hours;

[0039] (2) Soaking in the gibberellin solution: take the sinking seeds taken out in step (1), blot up the surface moisture, put them in a beaker, add 400 mL of gibberellin solution, and soak for 22 hours. During the soaking period, every 1.8 h Stir once, rinse with clean water after soaking and set aside;

[0040] (3) The seed sand storage treatment: store the seeds treated in (2) in low-temperature sand storage, the sand storage temperature is controlled at -3°C, and the sand storage seeds are sti...

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Abstract

The invention discloses a method for breaking dormancy of Tumd carex stenophylloides seeds. The method comprises three steps, i.e., pretreatment of seeds, gibberellin solution soaking and earthing treatment of the seeds, wherein the step of gibberellin solution soaking comprises the steps of sucking up surface moisture from withdrawn sinking seeds, placing the seeds in a beaker, adding 400mL of gibberellin solution, carrying out soaking for 20 to 24 hours, carrying out stirring once at intervals of 1.5 to 2 hours during soaking, and carrying out rinsing out with clean water for later use aftersoaking is completed; and the step of earthing treatment of the seeds comprises the steps of controlling an earthing temperature to -7 DEG C to -3 DEG C, carrying out stirring overturning on the earthed seeds at intervals of 5 to 8 days, maintaining good ventilating, taking out the seeds in a period of 45 to 65 days, carrying out flowing-water showering treatment on the seeds for 10 to 14 hours,and drying the seeds in the air for later use. After the Tumd carex stenophylloides seeds are treated with gibberellin, the solute permeability of seed coats is improved; and after earthing full-water-absorption, the percentage of seed germination is increased, and the germination rate is increased to 65% to 75% from original 7%. The germination time is shortened and is shortened to 10 to 15 daysfrom original 22 days, and thus, the dormancy of the seeds is effectively broken.

Description

technical field [0001] The invention relates to the technical field of plant germination and breeding, in particular to a method for breaking the dormancy of Carex thumote seeds. Background technique [0002] Carex tumed is a wild cultivated species that is domesticated and selected from the local wild Carex in Inner Mongolia. Its leaves are green in color and soft in texture; There are no serious pests and diseases, the growth rate is slow, and extensive management is possible. It can be used for urban and rural environmental greening and ecological environment construction, and is a high-quality lawn grass species. However, the sexual reproduction of Carex tumedensis is weak, the seed yield is low, and there is a phenomenon of seed dormancy. Therefore, if the problem of seed germination is not solved, the lawn cannot be built by direct seeding of Carex tumed grass seeds. At present, there are few studies on the dormancy and germination characteristics of Carex spp. seed...

Claims

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Application Information

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IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 贾振宇崔海鹏刘思泱马怀林高秀梅田志来张跃华潘亮
Owner INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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