CN1326454C - Notopterygium root extract for alleviating damage of acetochlor to rice - Google Patents
Notopterygium root extract for alleviating damage of acetochlor to rice Download PDFInfo
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- CN1326454C CN1326454C CNB2005100318443A CN200510031844A CN1326454C CN 1326454 C CN1326454 C CN 1326454C CN B2005100318443 A CNB2005100318443 A CN B2005100318443A CN 200510031844 A CN200510031844 A CN 200510031844A CN 1326454 C CN1326454 C CN 1326454C
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- acetochlor
- paddy rice
- notopterygium root
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- rice
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Abstract
The present invention relates to an extract from Notopterygium incisum ting exH. T. Chang for relieving the harm to paddy rice caused by acetochlor. An alcohol substance is used as a solvent for extraction; the material of the Notopterygium incisum ting exH. T. Chang is dried, pulverized and sieved; next, the material is put in an extraction container for back flow extraction in a water bath by adding the organic solvent, and the extract is obtained after concentration. When the extract from the Notopterygium incisum ting exH. T. Chang is directly sprayed on the paddy rice or soil on which the acetochlor is used, the extract from the Notopterygium incisum ting exH. T. Chang has the function for relieving the harm to the paddy rice caused by the acetochlor, is safe to crops, and does not pollute the environment.
Description
Invention field
The present invention relates to a kind of method of from vegetable material, extracting the Acetochlor safener, especially relate to safener and using method thereof, more specifically, the present invention relates to the use of Acetochlor safener on paddy rice.
Background technology
In the chloro-acetyl amine weed killer herbicide, activity of weeding with Acetochlor is higher, applied range, it is the preceding soil processing herbicide of a kind of selectivity bud efficient, wide spectrum, for preventing and kill off annual gramineous weed special efficacy is arranged, at present China successfully is applied to Acetochlor and mixture thereof the weed control of paddy field.But because paddy rice is responsive to Acetochlor, Acetochlor produces poisoning to the tender paddy rice of children easily when paddy field uses, make the application of Acetochlor in paddy field be subjected to strict restriction.Herbicide-safener is that a class can reduce the toxicity of weed killer herbicide to crop, by increasing the tolerance of sensitive crop, alleviates or eliminates the injury of weed killer herbicide to crop, has the material of special performance.It do not influence weed killer herbicide to the prerequisite of target activity under selectively cover crop exempt from the poisoning of weed killer herbicide, thereby make many herbicide applications scopes obtain enlarging.So promptly can be old kind new application prospect is provided, increase the service life, help the exploitation of novel herbicide again.Commercial at present chloro-acetyl amine herbicide-safener has benoxacor, cyometrinil, oxabetrinil, naphthalene dimethyl anhydride etc.The country of research mainly contains the U.S., Switzerland, Germany, Japan and Canadian, and states such as Russia, Hungary are also studied.China also pays special attention to this problem, but the synthetic and bioactivity research of relevant safener still is in the starting stage.And relevantly alleviate Acetochlor with the vegetalitas safener injury of paddy rice is not appeared in the newspapers as yet.The vegetalitas safener is a kind of novel safener, and it derives from plant, directly protects paddy rice to avoid the poisoning of weed killer herbicide as herbicide-safener with vegetable material or the active component that extracts from plant.
The vegetalitas safener is different from the safener of chemosynthesis, it derives from plant, Environmental compatibility is good, can not cause new pressure to environment, the vegetalitas safener is a brand-new exploration and breakthrough in the safener field, the main performance that safener had of its existing chemosynthesis, the advantage that has the chemosynthesis safener not had again simultaneously, it can not cause new pollution to environment in the whole ecological system.China's plant resources is abundant, and this is China's development vegetalitas resources advantage that safener has.
Summary of the invention
The object of the present invention is to provide a kind of vegetalitas herbicide-safener, by using this safener, on the one hand, can alleviate the injury of Acetochlor, on the other hand, reach the range of application that enlarges Acetochlor paddy rice, reduce the weed killer herbicide consumption, improve herbicidal effect, reduce the weeding cost.
Of the present invention being characterized as: a kind of material as herbicide-safener is the extract of plant notopterygium root (Notopterygium incisumting ex H.T.Chang), said notopterygium root extract is the alcohols extract of notopterygium root plant, and alcohols comprises that the methyl alcohol class comprises one or more in methyl alcohol, ethanol, propyl alcohol, butanols, the amylalcohol.The method of notopterygium root extract is: (1) is pulverized vegetable material is dried under 50～80 ℃ of conditions, pulverizes, and crosses 40～60 mesh sieves; (2) extraction places extractor with the notopterygium root fine powder through pulverizing, add alcohols material, as ethanol, the cry for help ratio of last weight of its addition and fine powder is 4～10: 1 (W/w), refluxing extraction in water-bath, keeping temperature is 80～90 ℃, the time is 6～10h, again extract is concentrated into 10%～25% of amount of alcohol added, obtains notopterygium root extract.
Alleviating the method for Acetochlor to the injury of paddy rice, is that the protection paddy rice exempts from the murder by poisoning of Acetochlor with the safener of notopterygium root extract as the weed killer herbicide Acetochlor.
Notopterygium root extract in 0.0625～4.0g/L scope to rice safety.
Alleviate the notopterygium root extract of Acetochlor to the injury of paddy rice, it is characterized in that: extracting method can be undertaken by following method,
(1) material processed with the notopterygium root oven dry, is pulverized, and sieves; (2) extract, the fine powder behind crushing screening is placed extraction vessel, add pure organic solvent, refluxing extraction in water-bath gets extract after concentrating.
Described notopterygium root extract and the agent of Acetochlor list or Acetochlor are made composition pesticide for composite dose, and notopterygium root extract and other insecticides adjuvant are made preparation.
The alcohols extract of notopterygium root directly is sprayed in paddy rice or the soil after diluting.
Directly be sprayed in the paddy rice or soil of using Acetochlor after containing the alcohols extract dilution of notopterygium root, or contain and be sprayed in paddy rice or the soil after the alcohols extract of described notopterygium root and the agent of Acetochlor list or composite dose are used in combination.
When Acetochlor concentration was 0.05mg/L, concentration was 0.0625,0.125,0.25,0.5,1.0,2.0, the notopterygium root extract of 4.0g/L reaches 143.82%, 200.00%, 219.10%, 213.48%, 205.62%, 180.90%, 147.19% respectively to the facilitation of paddy rice plant height; Facilitation to paddy rice strain fresh weight reaches 137.26%, 172.33%, 176.99%, 175.34%, 173.97%, 162.47%, 140.27% respectively.
When Acetochlor concentration was 0.05mg/L, it is best to the effect of paddy rice injury that the 0.25g/L notopterygium root extract is alleviated Acetochlor, and the facilitation of plant height and strain fresh weight is respectively 219.10% and 176.99%.
When notopterygium root extract concentration is 0.25g/L, can alleviate of the injury of 0.025～0.80mg/L Acetochlor to some extent to paddy rice.
Result of the test:
(a) leaching process of vegetable matter active ingredient
Elder generation pulverizes the vegetable material oven dry, sieves, and takes by weighing the vegetable material fine powder then and places apparatus,Soxhlet's, adds alcohols, the ethanol as 95%, and refluxing extraction in 86-88 ℃ of water-bath gets notopterygium root extract after concentrating, and places refrigerator stand-by.
(b) screening of safener
Adopt the earth culture method, concrete operations are: load onto the air-dry sandy loam that sieves in plastic casing, choose presoaking and germinating to the rice paddy seed that shows money or valuables one carries unintentionally and be seeded in the plastic casing.Put into illumination box then and cultivate, Acetochlor and plant extracts with variable concentrations behind the 3d are handled, cultivate 7d again after, measure plant height and the strain fresh weight of paddy rice.The result shows: notopterygium root extract can be alleviated the injury of Acetochlor to paddy rice significantly.
(c) notopterygium root extract is to the influence of paddy growth
Adopt the earth culture method to cultivate paddy rice, handle paddy rice with notopterygium root extract behind the 3d, cultivate 7d again after, measure paddy rice plant height, strain fresh weight.
(d) notopterygium root extract is to the antidotal effect of Acetochlor
Adopt the earth culture method to cultivate paddy rice, handle paddy rice with Acetochlor and notopterygium root extract behind the 3d, cultivate 7d again after, measurement paddy rice plant height, strain fresh weight.
Advantage of the present invention and good effect: detoxifying effect is obvious.A large amount of indoor bioassay show that Acetochlor easily produces injury to paddy rice, after notopterygium root extract is handled paddy rice, can alleviate the injury of Acetochlor to paddy rice significantly, have significant antidotal effect.Enlarge the range of application of Acetochlor.Use Acetochlor at paddy field, the poisoning incident very easily takes place, after notopterygium root extract was handled paddy rice, Acetochlor used on paddy rice and paddy rice is not produced poisoning, thereby enlarged the range of application of Acetochlor.Notopterygium root belongs to plant, and good with Environmental compatibility, its extract is applied to paddy rice, can not pollute environment.
Specific embodiment
Embodiment 1
The following examples are to further specify of the present invention, below are the results of indoor bioassay, but should regard the restriction of by any way range of application of the present invention being carried out as in any case.
Earlier vegetable material is dried under 60 ℃ of conditions, pulverizes, cross 40 mesh sieves (aperture 0.47mm) after, preserve standby in refrigerator (0～4 ℃).Take by weighing vegetable material fine powder 20g and place the 250mL apparatus,Soxhlet's, add the ethanol of 200mL95%, refluxing extraction 8h in 86～88 ℃ of water-baths gets extract 20mL (being equivalent to dry powder 1g/mL) after concentrating, and places refrigerator stand-by.
In the plastic casing of 13cm * 8cm * 5cm, load onto the 200g air dried soil, add the 100mL running water.Rice paddy seed is used 0.1%HgCl earlier
2Sterilization 15min, 28 ℃ of following clear water soak 24h, 30 ℃ of following vernalization 12h, select seed of the same size to be sowed in the plastic casing after showing money or valuables one carries unintentionally, 15 in every box places 26 ℃ of temperature daytimes, 22 ℃ of evenings, intensity of illumination is to cultivate in the constant temperature illumination box of 6000LuX, and the continuous illumination 12h that circulates every day carries out chemicals treatment behind the 3d.
20% Acetochlor wetting powder is made into the solution of 0.05mg/L, in every box, add the 1mL soup respectively, again notopterygium root extract is diluted to 0.0625 with deionized water, 0.125,0.25,0.5,1.0,2.0,4.0g/L the soup of seven concentration, spray the 1mL extract in every box, each concentration of treatment is established 3 repetitions, compare with clear water and 0.05mg/L Acetochlor, continue to place 26 ℃ of temperature daytimes after the dispenser, 22 ℃ of evenings, intensity of illumination is to cultivate in the constant temperature illumination box of 6000LuX, the continuous illumination 12h that circulates every day, 7d measures paddy rice plant height and strain fresh weight after the chemicals treatment.The exercising result of notopterygium root extract protection preventing rice from poisoning by acetochlor is as shown in table 1.
The notopterygium root extract of table 1 variable concentrations is alleviated the effect of Acetochlor to the paddy rice injury
| Acetochlor concentration (mg/L) | Notopterygium root extract concentration (g/L) | Plant height 1) (cm) | Strain fresh weight (g/10 strain) |
| 0 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 | 0 0 0.0625 0.125 0.25 0.5 1.0 2.0 4.0 | 20.8 8.9 12.8(143.82) 2) 17.8(200.00) 19.5(219.10) 19.0(213.48) 18.3(205.62) 16.1(180.90) 13.1(147.19) | 0.672 0.365 0.501(137.26) 0.629(172.33) 0.646(176.99) 0.640(175.34) 0.635(173.97) 0.593(162.47) 0.512(140.27) |
1) plant height is the mean value of ten strains; 2) be growth rate in the bracket.
Embodiment 2
Alleviating the land for growing field crops evaluating drug effect of Acetochlor to the paddy rice injury, is example with the ethanol extract of notopterygium root.
Extracting method: press the ethanol extract that the described extracting method of summary of the invention (a) obtains notopterygium root
Rice varieties: train two excellent 288
Acetochlor: 90% acetochlor ec
Paddy rice is in sowing seedling on June 18th, 2004, carry out chemicals treatment when treating rice shoot length to 3 leaves, 1 heart, processing method is that rice shoot is carried out even directed spraying, every mu of dilution that sprays after 90% acetochlor ec 40mL converts water 40kg, 7d finds that tangible poisoning appears in paddy rice behind the medicine, symptom of chemical damage is the plant dwarfing, root system is undeveloped, the paddy rice plant height is starkly lower than the paddy rice plant height that is untreated with breeding time, and every mu of mixed liquid that sprays the ethanol extract 5kg of 90% acetochlor ec 40mL and notopterygium root is converted the dilution behind the water 40kg, the 7d paddy rice does not have obvious symptom of chemical damage behind the medicine, the paddy rice plant height is near being untreated with the paddy rice plant height of breeding time, and the ethanol extract that notopterygium root be described has alleviates the effect that Acetochlor injures paddy rice significantly.
Claims (3)
1, a kind of method of alleviating Acetochlor to the paddy rice injury, it is characterized in that: the alcohols extract with the notopterygium root plant directly is sprayed in paddy rice or the soil after diluting.
2, alleviation Acetochlor according to claim 1 is to the method for paddy rice injury, it is characterized in that: directly be sprayed in the paddy rice or soil of using Acetochlor after will containing the alcohols extract dilution of notopterygium root, or contain and be sprayed in paddy rice or the soil after the alcohols extract of described notopterygium root and the agent of Acetochlor list or composite dose are used in combination.
3, alleviation Acetochlor according to claim 1 is to the method for paddy rice injury, the alcohols extract that it is characterized in that notopterygium root in 0.0625～4.0g/L working concentration scope to rice safety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100318443A CN1326454C (en) | 2005-07-11 | 2005-07-11 | Notopterygium root extract for alleviating damage of acetochlor to rice |
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| CNB2005100318443A CN1326454C (en) | 2005-07-11 | 2005-07-11 | Notopterygium root extract for alleviating damage of acetochlor to rice |
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| CN1714639A CN1714639A (en) | 2006-01-04 |
| CN1326454C true CN1326454C (en) | 2007-07-18 |
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| CNB2005100318443A Expired - Fee Related CN1326454C (en) | 2005-07-11 | 2005-07-11 | Notopterygium root extract for alleviating damage of acetochlor to rice |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965833B (en) * | 2010-10-15 | 2013-04-24 | 湖南农业大学 | Method for relieving toxic hazard of amide herbicide to rice by using zanthoxylum bungeanum extract |
| CN102823588B (en) * | 2012-09-12 | 2014-03-19 | 湖南农业大学 | Application of furan coumarin compound in reducing toxic effect of amide herbicide on crops |
| CN116267921A (en) * | 2023-02-17 | 2023-06-23 | 江西劲农作物保护有限公司 | Preparation method of herbicide safener and application of herbicide safener in relieving rice phytotoxicity |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999011130A1 (en) * | 1997-09-03 | 1999-03-11 | Zeneca Limited | Synergistic herbicidal combination |
| CN1249660A (en) * | 1997-03-04 | 2000-04-05 | 泽尼卡有限公司 | Compositions for safening rice against acetochlor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249660A (en) * | 1997-03-04 | 2000-04-05 | 泽尼卡有限公司 | Compositions for safening rice against acetochlor |
| WO1999011130A1 (en) * | 1997-09-03 | 1999-03-11 | Zeneca Limited | Synergistic herbicidal combination |
Non-Patent Citations (1)
| Title |
|---|
| 活化学成分的研究II——活乙醇提取部分化学成分的分离鉴定 孙友富等，中药通报，第10卷第3期 1985 * |
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