Application of vine tea extract in improving germination rate of deteriorated seeds of rice

The technology of extract and germination rate of vine tea is applied in the research field of rice seed initiation technology, which can solve the problems of high cost, difficult separation of seeds and substrates, low oxygen solubility of solution, etc., and achieves the effects of low price and obvious initiation effect.

Active Publication Date: 2013-08-14
RICE RES INST GUANGDONG ACADEMY OF AGRI SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Although various initiators have their own characteristics, the disadvantages are also obvious: PEG has the properties of a colloid, and its solution can obtain a lower water potential, and it has no toxic effect on the seeds, but it is viscous and the oxygen solubility in the solution Low, and the dosage is large, the cost is high, the amount of bacteria on the surface of the seed increases, etc.
The action mechanism of PVA is similar to that of PEG, which has the advantages of less dosage and low cost, but the triggering effect is not ideal and cannot meet the production requirements.
[0010] Inorganic salt ions are generally used in small amounts and the cost is relatively low, but the ions of inorganic salts can penetrate into the seeds and accumulate in the seeds during the treatment process, thereby reducing the osmotic potential of the seeds, causing the seeds to absorb more water and reducing the germination rate
Water triggering may cause uneven moisture absorption of seeds, resulting in damage to seeds and increase in the amo

Method used

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  • Application of vine tea extract in improving germination rate of deteriorated seeds of rice
  • Application of vine tea extract in improving germination rate of deteriorated seeds of rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The fresh stems and leaves of the vine tea are dried at a temperature of 35-45° C. to obtain the dry raw material of the vine tea; the dried raw material of the vine tea is extracted with ethanol to obtain a vine tea extract, and then the vine tea extract is obtained through a spray drying method; In the ethanol extraction method, the mass ratio of the dry raw material of vine tea to ethanol is 1:10-12, and the volume percentage concentration of ethanol is 85-95%. The vine tea extract obtained above is packaged or canned in a composite aluminum bag to obtain the rice deterioration seed initiator.

Embodiment 2

[0029] Take 100.0g of ordinary vine tea purchased in the market, add 500g of water, place it in a household microwave oven, extract for 2 minutes, filter it with gauze, cool the filtrate for 10 minutes, and the vine tea extract will precipitate at the bottom of the container. The dried precipitate, weighing 16.5g, is the vine tea extract. The vine tea extract obtained above is packaged or canned in a composite aluminum bag to obtain the rice deterioration seed initiator.

Embodiment 3

[0030] Example 3: Germination of degenerated rice seeds after being treated with rattan tea extract

[0031]The specific method of "initiation treatment" in this experiment process is as follows: CK is the experimental control, that is, the rice seeds without any treatment are directly carried out according to the "Method for Determination of Germination Rate of Rice Seeds" (GB / T3543); "clean water 12h" and " "Clean water 24h" treatment is to soak the deteriorated rice seeds in clean water for 12h and 24h respectively, then dry the seeds and measure the germination rate of rice seeds according to the method of GB / T3543; "0.10% vine tea extract", "0.25% vine tea Extract" and "0.50% rattan tea extract" are treated by taking 0.10 kg, 0.25 kg and 0.50 kg of rattan tea extract obtained in Example 1, respectively heating and dissolving in clear water, and then adding water to dilute the solution to 100 kg to obtain " 0.10% rattan tea extract", "0.25% rattan tea extract" and "0.50% r...

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Abstract

The invention belongs to the technical field of rice seed priming research, and discloses an application of a vine tea extract in improving the germination rate of deteriorated seeds of hybrid rice. The vine tea extract is a vine tea extract product extracted and obtained by methods such as solvent extraction, ultrasonic extraction or chromatographic separation based on vine tea as a raw material. The product comprises a solid product, a liquid product and a paste product, preferably the solid product. The vine tea extract is a natural plant extract and is free from any toxicity and low in cost, and is free from environmental pollution, and used for initiating safety of seeds of hybrid rice. The vine tea extract has a remarkable effect on initiation of seeds of hybrid rice.

Description

technical field [0001] The invention belongs to the field of rice seed priming technology research, and particularly relates to the application of a vine tea extract in improving the germination rate of deteriorating rice seeds. Background technique [0002] China is a large developing country with a population of more than one billion. Food security has always been an overall major strategic issue related to economic development, social stability and national security. Rice is the main food crop in my country, accounting for more than half of the country's total grain output, and plays an extremely important role in food security. The perennial rice planting area in my country is about 30 million hectares, and the annual seed consumption is quite large. Due to the complexity of rice seed production and the unpredictability of the seed market, coupled with global climate change, extreme weather and frequent natural disasters, it is often necessary to adjust a large number o...

Claims

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Application Information

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IPC IPC(8): A01C1/00
Inventor 刘军张友胜周新桥付华高家东
Owner RICE RES INST GUANGDONG ACADEMY OF AGRI SCI
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