CN1698446A - Method for extending storage period of paddy seeds - Google Patents
Method for extending storage period of paddy seeds Download PDFInfo
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- CN1698446A CN1698446A CN 200510049845 CN200510049845A CN1698446A CN 1698446 A CN1698446 A CN 1698446A CN 200510049845 CN200510049845 CN 200510049845 CN 200510049845 A CN200510049845 A CN 200510049845A CN 1698446 A CN1698446 A CN 1698446A
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Abstract
The invention discloses a method for extending storage period of paddy seeds which includes a drying step and a radiation step, wherein the radiation step comprises radiating the harvested paddy seeds with gamma-rays by the radiation dose of 0.5-2kGy, the drying process comprises kilning the seeds with hot air to moisture suitable for safety storage, the seed moisture percentage is below 15%, the drying temperature is 30-50 deg. C.
Description
Technical field
The present invention relates to a kind of method of post-processed method, particularly a kind of extending storage period of paddy seeds of paddy seeds.
Background technology
Paddy is after harvesting in season in season, and a part is done suitably to be taken as the storage of seeds after the oven dry processing, thinks that sowing in the coming year is ready.Paddy seeds is in storage, because self design feature, along with the increase of storage time, seed germination rate descends gradually, and 97% when being 3 months from storage period is reduced to storage period 53% when being 36 months gradually.This situation causes paddy seeds to preserve for a long time, and this is especially all the more so for needing Long-term Storage or Long-term Storage can bring than the seed of large economy benefit not only at the cost that has increased seed virtually; And be unfavorable for being engaged in department and the enterprise that seed is sold, also be unfavorable for buying and using the peasant of seed.Therefore people urgently wish to improve the germination percentage of the paddy seeds after preserving for a long time.
At present, some place adopts method desinsections such as ionizing radiation, X-radiation and release ozone to reach the technology that prolongs the paddy seeds storage time in the storage of seeds process.Though yet this technology can desinsection, can't change paddy seeds with storage time germination percentage this physiological phenomenon that descends gradually.Therefore be badly in need of a kind of method that can make kind after long-time storage, still have higher germination percentage.
Summary of the invention
At the deficiencies in the prior art part, the invention provides and can be convenient to people's Long-term Storage paddy seeds, make seed after Long-term Storage, still have the method for a kind of extending storage period of paddy seeds of higher germination percentage.
The present invention is to realize by such technical scheme for reaching above purpose: a kind of method of extending storage period of paddy seeds is provided, comprises irradiation step and baking step successively;
Irradiation steps is: adopt gamma-rays to carry out the irradiation of 0.5～2kGy dose of radiation the paddy seeds of being gathered in the crops;
Baking step is: the seed behind the above-mentioned irradiation is carried out hot-air seasoning to safe storage moisture, i.e. seed moisture proportion≤15%; Described bake out temperature is 30～50 ℃.
A kind of improvement as the method for extending storage period of paddy seeds of the present invention: what adopt in the irradiation steps is
60Co irradiation.
Used the method for extending storage period of paddy seeds of the present invention, paddy seeds will be through entering rest period immediately behind the irradiation, and germination percentage is very low, yet after after a while, seed germination rate is restored, and can return to the germination percentage of the paddy of firm results.In dose of radiation scope of the present invention, after different dose of radiations was handled, behind different storage times, the germination percentage of paddy seeds can reach optimum value.Utilize this characteristic, can set the storage time that can obtain best germination percentage according to actual needs in advance.Like this, more help the control of people to the paddy seeds storage time.
The specific embodiment
The method of embodiment 1, a kind of extending storage period of paddy seeds may further comprise the steps successively:
1), adopt irradiation bomb to be the paddy seeds of being gathered in the crops
60The gamma-rays of Co carries out radiation treatment, and dose of radiation is respectively 0.5,1,2kGy;
2), the seed behind the above-mentioned irradiation is carried out hot-air seasoning respectively, below seed safety storage moisture, i.e. seed moisture proportion≤15%; Bake out temperature is 30 ℃.
To with the paddy seeds that obtains according to the method described above, under identical holding conditions, preserve with the handling (being 0kGy), directly carry out the paddy seeds of baking step of batch results without gamma-ray irradiation; Early stage at quarterly intervals, the later stage, the processing of more different dose of radiations (comprising unirradiated) was to the influence of percentage of seedgermination every seed germination rate of survey in 6 months.Concrete outcome sees Table 1.
The method of embodiment 2, a kind of extending storage period of paddy seeds may further comprise the steps successively:
1), adopt irradiation bomb to be the paddy seeds of being gathered in the crops
60The gamma-rays of Co carries out radiation treatment, and dose of radiation is respectively 0.5,1,2kGy;
2), the seed behind the above-mentioned irradiation is carried out hot-air seasoning respectively, below seed safety storage moisture, i.e. seed moisture proportion≤15%; Bake out temperature is 40 ℃.
To with the paddy seeds that obtains according to the method described above, under identical holding conditions, preserve with the handling (being 0kGy), directly carry out the paddy seeds of baking step of batch results without gamma-ray irradiation; Early stage at quarterly intervals, the later stage, the processing of more different dose of radiations (comprising unirradiated) was to the influence of percentage of seedgermination every seed germination rate of survey in 6 months.Concrete outcome sees Table 2.
The method of embodiment 3, a kind of extending storage period of paddy seeds may further comprise the steps successively:
1), adopt irradiation bomb to be the paddy seeds of being gathered in the crops
60The gamma-rays of Co carries out radiation treatment, and dose of radiation is respectively 0.5,1,2kGy;
2), the seed behind the above-mentioned irradiation is carried out hot-air seasoning respectively, below seed safety storage moisture, i.e. seed moisture proportion≤15%; Bake out temperature is 50 ℃.
To with the paddy seeds that obtains according to the method described above, under identical holding conditions, preserve with the handling (being 0kGy), directly carry out the paddy seeds of baking step of batch results without gamma-ray irradiation; Early stage at quarterly intervals, the later stage, the processing of more different dose of radiations (comprising unirradiated) was to the influence of percentage of seedgermination every seed germination rate of survey in 6 months.Concrete outcome sees Table 3.
The germination percentage of paddy seeds (%) over time after table 1 radiation treatment
(bake out temperature is 30 ℃)
| Irradiation dose | 3 months | 6 months | 9 months | 12 months | 18 months | 24 months | 30 months | 36 months |
| ??0kGy ??0.5kGy ??1kGy ??2kGy | ??96 ??16 ??0 ??0 | ??93 ??58 ??0 ??0 | ??90 ??96 ??11 ??0 | ??86 ??93 ??46 ??0 | ??81 ??88 ??72 ??10 | ??72 ??80 ??95 ??42 | ??61 ??73 ??91 ??75 | ??53 ??65 ??85 ??94 |
The germination percentage of paddy seeds (%) over time after table 2 radiation treatment
(bake out temperature is 40 ℃)
| Irradiation dose | 3 months | 6 months | 9 months | 12 months | 18 months | 24 months | 30 months | 36 months |
| ??0kGy ??0.5kGy ??1kGy ??2kGy | ??96 ??17 ??0 ??0 | ??93 ??60 ??0 ??0 | ??91 ??95 ??11 ??0 | ??85 ??92 ??45 ??0 | ??80 ??85 ??76 ??13 | ??71 ??80 ??96 ??45 | ??60 ??72 ??92 ??73 | ??52 ??66 ??87 ??95 |
The germination percentage of paddy seeds (%) over time after table 3 radiation treatment
(bake out temperature is 50 ℃)
| Irradiation dose | 3 months | 6 months | 9 months | 12 months | 18 months | 24 months | 30 months | 36 months |
| ??0kGy ??0.5kGy ??1kGy ??2kGy | ??95 ??11 ??0 ??0 | ??91 ??58 ??0 ??0 | ??88 ??93 ??9 ??0 | ??82 ??92 ??42 ??0 | ??76 ??84 ??72 ??11 | ??68 ??78 ??95 ??42 | ??57 ??70 ??90 ??68 | ??48 ??62 ??83 ??93 |
As seen, paddy seeds is plucked after after irradiation dose is the gamma-ray irradiation preliminary treatment of 0.5～2kGy, carry out bake out temperature again and be 30～50 ℃ the resulting dry seeds of hot-air seasoning, its germination percentage descends immediately, enter the physiological status of similar dormancy, along with the increase germination percentage of storage time then raises gradually, through the time (time can be controlled by irradiation dose) about half a year to 3 year, seed germination rate can go back up to the level of firm results.And without the pretreated paddy seeds of gamma-ray irradiation under identical holding conditions, along with its germination percentage of prolongation of storage time reduces gradually.
At last, it is also to be noted that what more than enumerate only is several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (2)
1, a kind of method of extending storage period of paddy seeds is characterized in that: comprise baking step and irradiation steps successively;
Described irradiation steps is: adopt gamma-rays to carry out the irradiation of 0.5～2kGy dose of radiation the paddy seeds of being gathered in the crops;
Described baking step is: the seed behind the described irradiation is carried out hot-air seasoning to safe storage moisture, i.e. seed moisture proportion≤15%; Described bake out temperature is 30～50 ℃.
2, the method for a kind of extending storage period of paddy seeds according to claim 1 is characterized in that: what adopt in the described irradiation steps is
60Co irradiation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049845 CN1698446B (en) | 2005-05-27 | 2005-05-27 | Method for extending storage period of paddy seeds |
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| CN 200510049845 CN1698446B (en) | 2005-05-27 | 2005-05-27 | Method for extending storage period of paddy seeds |
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| CN1698446A true CN1698446A (en) | 2005-11-23 |
| CN1698446B CN1698446B (en) | 2010-05-05 |
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| CN 200510049845 Expired - Fee Related CN1698446B (en) | 2005-05-27 | 2005-05-27 | Method for extending storage period of paddy seeds |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100536649C (en) * | 2008-05-28 | 2009-09-09 | 云南省农业科学院热区生态农业研究所 | Method for preserving jatopha curcas seed |
| CN101112147B (en) * | 2007-08-30 | 2010-09-15 | 福建师范大学 | Safe hoarding method for Chinese bandoline wood seeds |
| CN102960441A (en) * | 2012-11-08 | 2013-03-13 | 南昌大学 | Method of prolonging rice storage period by X ray and superheated steam combined treatment |
| CN102972521A (en) * | 2012-11-08 | 2013-03-20 | 南昌大学 | Method for improving rice eating quality and storage period |
| CN103098865A (en) * | 2013-02-27 | 2013-05-15 | 耿志亮 | Air moisture isolated long-term storage method for rice |
| CN105123917A (en) * | 2015-10-12 | 2015-12-09 | 贵州省现代农业发展研究所 | Insect-prevention storage method for coix seeds |
-
2005
- 2005-05-27 CN CN 200510049845 patent/CN1698446B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101112147B (en) * | 2007-08-30 | 2010-09-15 | 福建师范大学 | Safe hoarding method for Chinese bandoline wood seeds |
| CN100536649C (en) * | 2008-05-28 | 2009-09-09 | 云南省农业科学院热区生态农业研究所 | Method for preserving jatopha curcas seed |
| CN102960441A (en) * | 2012-11-08 | 2013-03-13 | 南昌大学 | Method of prolonging rice storage period by X ray and superheated steam combined treatment |
| CN102972521A (en) * | 2012-11-08 | 2013-03-20 | 南昌大学 | Method for improving rice eating quality and storage period |
| CN102960441B (en) * | 2012-11-08 | 2014-02-26 | 南昌大学 | Method of prolonging rice storage period by X ray and superheated steam combined treatment |
| CN103098865A (en) * | 2013-02-27 | 2013-05-15 | 耿志亮 | Air moisture isolated long-term storage method for rice |
| CN105123917A (en) * | 2015-10-12 | 2015-12-09 | 贵州省现代农业发展研究所 | Insect-prevention storage method for coix seeds |
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|---|---|
| CN1698446B (en) | 2010-05-05 |
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