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Method for breaking dormancy of Carex stenophylloides seeds

A technology for breaking dormancy and grasses, applied in the field of agricultural biology, can solve the problems of seed sowing, less research on reproduction, and large differences in seeds, and achieve the effects of tidy germination, high germination rate, and breaking dormancy.

Inactive Publication Date: 2012-07-11
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inability to solve the problem of seed sowing, it is still not possible to use the Central Asian Carex seeds to establish lawns in various places (Li Qingfeng et al., Research on the Growth and Development and Seed Production Characteristics of Carex Grass, Grassland Science)
The seeds of different species of Carex are quite different, and there are three types: non-dormant, shallow dormancy and deep dormancy. Central Asian Carex belongs to deep dormancy, and there are few studies on its reproduction. There are no reports on the method of seed breaking dormancy at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] On May 20, 2008, mature Carex Central Asia seeds were harvested in the Xiaotangshan Base of Beijing Grass Industry and Environmental Research and Development Center, and stored in mesh bags after air-drying. On March 14, 2009, 50g of seeds after selection were weighed, soaked for 24 hours, sunken seeds were air-dried, treated with concentrated sulfuric acid for 5 seconds, and 100 seeds were randomly selected for germination test in an artificial climate box. Germination day temperature / night temperature 25 / 15°C, repeat 3 times. The germination situation was investigated every day, and the germination rate reached 28.0% after 14 days, and the germination ended after 28 days, and the final germination rate was 44.0%.

Embodiment 2

[0017] The seed germination program is all carried out according to Example 1, the difference is that after the seeds are treated with concentrated sulfuric acid, they are stored in an incubator at 4-6°C for 60 days, and the results of the seed germination test are: after 14 days, the germination rate reaches 70.7%, and after 16 days, the germination rate reaches 70.7%. At the end, the final germination rate was 88.7%.

Embodiment 3

[0019] The seed germination program is all carried out according to embodiment 2, the difference is that the seed concentrated sulfuric acid treatment time is 10s, the seed germination test result is: the germination rate reaches 53.7% after 14d, 19d germination ends, and the final germination rate is 71.3%.

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Abstract

The invention provides a method for breaking dormancy of Carex stenophylloides seeds, which comprises the steps of seed picking followed by concentrated sulfuric acid treatment and sand storage. The method for breaking dormancy of Carex stenophylloides seeds solves the problem that seeds do not germinate. Germination ends after 16 days, and the final germination rate is 88.7%.

Description

technical field [0001] The invention relates to a method for breaking dormancy of Carex stenophylloides seeds. Specifically speaking, the seeds of Carex sativa are selected and then treated with concentrated sulfuric acid. This method breaks the dormancy of the seeds and solves the problem that the seeds do not germinate. It belongs to the field of agricultural biotechnology. Background technique [0002] Carex stenophylloides is a perennial herb, also known as Carex stenophylloides, which is widely distributed in Northeast, North, Northwest and Southwest provinces of China. It grows in sandy and gravel grasslands and saline meadows. It turns green early in spring, has a long green period, low plant, beautiful plant shape, fast covering and multiplication, trampling resistance, and can be fed. It is a promising greening plant for northern lawns. But Carex Central Asia has weak sexual reproduction, low seed yield and dormancy. Because of being unable to solve the problem ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00
Inventor 滕文军武菊英杨学军袁小环晁公平
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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