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Method of raising seedlings in greenhouse by using rice salt tolerance differences to achieve impurity removal and purity preservation

A differentiated, rice-based technology, applied in the fields of rice cultivation, horticultural methods, botanical equipment and methods, etc., can solve problems such as unseen applications, and achieve the effects of increased costs, easy implementation, and simple methods

Inactive Publication Date: 2014-06-04
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the measures for removing impurities and maintaining the purity of rice are mainly manual field operations, or herbicide-sensitive transgenic technology, which does not involve the use of different varieties or materials of rice in the process of raising seedlings in greenhouses to remove impurities due to differences in salt tolerance Pure
The current patent has not seen the application of this method

Method used

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  • Method of raising seedlings in greenhouse by using rice salt tolerance differences to achieve impurity removal and purity preservation
  • Method of raising seedlings in greenhouse by using rice salt tolerance differences to achieve impurity removal and purity preservation
  • Method of raising seedlings in greenhouse by using rice salt tolerance differences to achieve impurity removal and purity preservation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] For the determination of salt tolerance and induction rate of different rice varieties or materials, 1 variety, 5 hybrid combinations, 6 sterile lines, and 5 restorer lines were tested. See Table 1 for details.

[0016] Weigh 200 grams of seeds for each material, soak the seeds at room temperature at 25°C-30°C for 24 hours, accelerate germination in a wet state to "lubai", select 3 parts of more uniformly developed seeds, 200 seeds each, and treat them with fresh water for 24 hours. Then 1.0% NaCl treatment, 1.0mmol / L 3-hydroxy-5-methylisoxazole inducer treatment for 24 hours, and then 1.0% NaCl stress treatment and fresh water control, repeated three times. The root length of each material was measured on the 6th, 9th and 12th day respectively.

[0017] After 24 hours of fresh water treatment, 1.0% NaCl was used as NaCl treatment, and compared with fresh water, the root length salt tolerance of each material was calculated: (NaCl treatment - fresh water control) / fres...

Embodiment 2

[0025] The test materials are R1025, Meiyou 1025, Meiyou A and R6.

[0026] The setting of the salt content of the soil of the seedling tray in the greenhouse is to water the soil of the seedling tray with salt water to reach the salt content of 0.8%, 1.0%, and 1.3%, respectively, and put it in the greenhouse to prevent rain.

[0027] Weigh 500 grams of seeds for each material, soak the seeds at 25°C-30°C for 24 hours at room temperature, accelerate germination to "lubai" in a wet state, select 3 parts of seeds that are more uniform in development, and sow 3 seedling trays for each part, with 1.0mmol / The 3-hydroxy-5-methylisoxazole inducer of L was treated for 24 hours before sowing, sprayed with fresh water to keep the seedling tray soil moist, and repeated three times. On the 9th day, measure the number of plants planted and the number of survivors, and calculate the survival rate:

[0028] Survival rate = number of survivors / total number of plants*100%

[0029] As can be...

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Abstract

The invention relates to a method of raising seedlings in a greenhouse by using rice salt tolerance differences to achieve impurity removal and purity preservation. By means of the method, in a greenhouse seedling tray seedling raising process, by means of the salt tolerance differences between different varieties or materials of rice or by means of the rice salt tolerance differences induced by inducers, under the stress of the appropriate salt content of greenhouse seedling tray soil, plants having high salt tolerance or inductivity can survive, and plants having low salt tolerance or inductivity wither. By screening conventional rice or hybrid rice seedlings, the seedling raising effects of purity identification, impurity removal, purity preservation, salt tolerance and robustness are achieved.

Description

technical field [0001] The invention relates to a method for raising seedlings of rice, in particular to a method for raising seedlings in greenhouses by utilizing the difference of rice salt tolerance to remove impurities and preserve purity, and belongs to the technical field of removing impurities and maintaining purity of rice varieties. Background technique [0002] Rice is an important food crop, which can be divided into conventional rice and hybrid rice. Conventional rice often has mixed varieties and degenerates to reduce seed purity, resulting in different degrees of yield reduction; hybrid rice seed purity has a very significant relationship with the impact of field rice yield. Therefore, it is often necessary to remove impurities and preserve the purity of rice promotion varieties, so as to give full play to the due role of excellent varieties in agricultural production. [0003] However, few measures are taken to remove impurities and keep the purity of conventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01G7/06A01G22/22
Inventor 方良俊
Owner GUANGDONG OCEAN UNIVERSITY
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