CN108243659A - A kind of type of seeding for improving Cold Tolerance in Rice - Google Patents
A kind of type of seeding for improving Cold Tolerance in Rice Download PDFInfo
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- CN108243659A CN108243659A CN201810233966.8A CN201810233966A CN108243659A CN 108243659 A CN108243659 A CN 108243659A CN 201810233966 A CN201810233966 A CN 201810233966A CN 108243659 A CN108243659 A CN 108243659A
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- rice
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses a kind of types of seeding for improving Cold Tolerance in Rice, seed rice handles 0 24 hours particularly 12 hours in 30 DEG C of water seed soakings in the present invention, at this moment the various nutriments of seed are got up by mobilization, the preparation of germination is carried out, but at this moment seed is imbibition, bud and root do not expose, thus with stronger cold resistance.By the method for the present invention, existing early rice Direct-seeding Rice, the cold resistance of ratooning rice can be significantly improved, moistening live streaming and direct-sowing dry can be carried out under 5 DEG C of 7 DEG C of cryogenic conditions, and at least can shift to an earlier date 57 days or more than normal early rice Direct-seeding Rice, ratooning rice date of seeding.
Description
Technical field
The invention belongs to agricultural cultivation technical fields, and in particular to a kind of type of seeding for improving Cold Tolerance in Rice.
Background technology
Low temperature is a big limiting factor of paddy growth, be influence rice yield a significant problem, China it is annual because
The paddy of low temperature cold damage loss reaches hundred million kg of 30-50.Chilling injury reaction can occur during the entire growth and development of rice.Wherein
The chilling injury of sprouting stage is easier to be happened at live streaming field and rice seedling bed, if sprouting stage is not cold-resistant, will lead to the reduction of rice planting percent
With seedling rot phenomenon, so as to influence the foundation of Rice Photosynthesis group, lead to the reduction of rice yield.Therefore, Bud Bursting Period in Rice cold resistance
It is one of very important important character of Rice Production.
Early rice Direct-seeding Rice, ratooning rice easily do harm to the cold after broadcasting, and cause rotten rotten bud, bring about great losses to agricultural production.
Invention content
To solve the above problems, the present invention provides a kind of types of seeding for improving Cold Tolerance in Rice.
The present invention uses following technical scheme：
A kind of type of seeding for improving Cold Tolerance in Rice, includes the following steps：
（1）It basks seeds seed selection：
By early rice Direct-seeding Rice to be sowed, ratooning rice description of materials, fine day is robbed before seed soaking and is basked seeds 1-2 days, is chosen seeds with clear water, it will be floating
The half strong paddy on the water surface is all pulled out to be dispensed with mesh bag, is individually soaked seed；
（2）By the above-mentioned Direct-seeding Rice to be sowed filtered out, ratooning rice material seed, 25 DEG C of -30 DEG C of temperature of growth cabinet are utilized
Water seed soaking is used under degree 0-24 hours or directly handled 0-24 hours using 30 DEG C of water seed soakings, constantly add 30 DEG C of temperature therebetween
Water makes its temperature remain at 25 DEG C -30 DEG C；
（3）After processing time when 12 is small reaches, it is drawn off immediately, is placed under 5 DEG C of -7 DEG C of cryogenic conditions 1-2 days, waits to broadcast；
（4）The lowest temperature is selected to be not less than 5 DEG C or so of suitable weather, by it is above-mentioned handle well seed to be broadcast be sown into it is whole in advance
On the moistening seedbed managed, wait to emerge；As met low temperature again after emergence, then film or rice husk or rapeseed hull must be used to cover, such as used
Film then must etc. temperature go up to daily mean temperature stabilization at 12 DEG C or more, can will remove film.
Wherein, the step（2）Treatment conditions selection is advisable for 12 hours with 30 DEG C of immersion treatments.
Compared with prior art, beneficial effects of the present invention are as follows：
Existing water-raised seedling live streaming is generally sowed when temperature is stablized by 11 DEG C, is concentrated mainly on late March；Dry rice seedling one
As temperature stablize by 8 DEG C when sow, sowing time does sth. in advance 10-15 days than water-raised seedling.Seed rice is in 30 DEG C of warm water in the present invention
Seed soaking 0-24 hours particularly 12 hours, at this moment the various nutriments of seed got up by mobilization, carried out the standard of germination
Standby work, but at this moment seed is imbibition, and bud and root do not expose, thus with stronger cold resistance.By the method for the present invention,
Existing early rice Direct-seeding Rice, the cold resistance of ratooning rice can be significantly improved, moistening live streaming and drought can be carried out under 5 DEG C of -7 DEG C of cryogenic conditions
Live streaming, and at least can shift to an earlier date 5-7 days or more than normal early rice Direct-seeding Rice, ratooning rice date of seeding.
Description of the drawings
Fig. 1 is the planting percent after the different soaking times processing of 30 DEG C of different materials, 5 DEG C of resistance to cold treatments 5 days.
Specific embodiment
Embodiment 1
1. test material
Choose early rice bamboo blueness, early rice live streaming rice varieties 93067,6180,6173.
2. using growth cabinet as temperature controlling instruments, test process is as follows：
（1）It basks seeds seed selection：
By above-mentioned early rice description of materials to be sowed, fine day is robbed before seed soaking and is basked seeds 2 days, is chosen seeds with clear water, by what is floated on the surface
Half strong paddy is all pulled out to be dispensed with mesh bag, is individually soaked seed；
（2）The above-mentioned early rice material seed to be sowed that will be filtered out really controls 30 DEG C of temperature underlying using growth cabinet
In culture dish, with water seed soaking, the soak test time set 0 hour, 12 hours, 24 hours, 36 hours, 48 hours, it is 60 small
When, 72 hours, 96 hours, 120 hours；
（3）After reaching the seed soaking time, culture dish is taken out immediately, is placed in 5 DEG C of cryogenic conditions freezings 5 of growth cabinet
My god；
（4）It takes out, is put into growth cabinet immediately, utilize 30 DEG C of culture dish filter paper germinating growths 5-7 days.Experiment sets 4 weights
It is multiple, 100 seeds are each repeated as, observe seedling situation, calculate average cold-resistant planting percent.
Average cold-resistant planting percent（%）=[(number of seedling 1/100)+(number of seedling 2/100)+(number of seedling 3/100)+(seedling
Number 4/100)] * 100/4
3. interpretation of result
With reference to attached drawing 1 to the planting percent result after the 30 DEG C of different soaking times processing of above-mentioned different materials, 5 DEG C of resistance to cold treatments 5 days
It is analyzed, it is as a result as follows：Because the characteristic of different cultivars is different, cold-resistant planting percent has differences 0 hour dry seeds, and bamboo blueness is early most
Low only 52.5%, 93067 up to 95.5%；And the cold-resistant planting percent for handling 12 hours is highest, between 92% to 98.5%；
It decreases again within 24 hours, between being 74.5% to 93.5%；Other only have 16%-28.5% in addition to 6180 be 68% within 36 hours,
The decline of chitting piece cold resistance becomes apparent after again, and cold-resistant planting percent is gradually lowered to 0.Therefore, 30 DEG C of leachings of 0-24 hours
Bubble processing is respectively provided with higher cold-resistant planting percent, and with 30 DEG C of immersion treatments 12 hours for optimum.This is also the present invention's
Core content.
Claims (2)
1. a kind of type of seeding for improving Cold Tolerance in Rice, which is characterized in that include the following steps：
（1）It basks seeds seed selection：
By early rice Direct-seeding Rice to be sowed, ratooning rice description of materials, fine day is robbed before seed soaking and is basked seeds 1-2 days, is chosen seeds with clear water, it will be floating
The half strong paddy on the water surface is all pulled out to be dispensed with mesh bag, is individually soaked seed；
（2）By the above-mentioned Direct-seeding Rice to be sowed filtered out, ratooning rice material seed, 25 DEG C of -30 DEG C of temperature of growth cabinet are utilized
Water seed soaking is used under degree 0-24 hours or directly handled 0-24 hours using 30 DEG C of water seed soakings, constantly add 30 DEG C of temperature therebetween
Water makes its temperature remain at 25 DEG C -30 DEG C；
（3）It after reaching between when treated, is drawn off immediately, is placed under 5 DEG C of -7 DEG C of cryogenic conditions 1-2 days, waits to broadcast；
（4）The lowest temperature is selected to be not less than 5 DEG C or so of suitable weather, by it is above-mentioned handle well seed to be broadcast be sown into it is whole in advance
On the moistening seedbed managed, wait to emerge；As met low temperature again after emergence, then film or rice husk or rapeseed hull must be used to cover, such as used
Film then must etc. temperature go up to daily mean temperature stabilization at 12 DEG C or more, can will remove film.
A kind of 2. type of seeding for improving Cold Tolerance in Rice according to claim 1, which is characterized in that the step（2）
Treatment conditions selection is advisable for 12 hours with 30 DEG C of immersion treatments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233966.8A CN108243659A (en) | 2018-03-21 | 2018-03-21 | A kind of type of seeding for improving Cold Tolerance in Rice |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233966.8A CN108243659A (en) | 2018-03-21 | 2018-03-21 | A kind of type of seeding for improving Cold Tolerance in Rice |
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| CN108243659A true CN108243659A (en) | 2018-07-06 |
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| CN201810233966.8A Pending CN108243659A (en) | 2018-03-21 | 2018-03-21 | A kind of type of seeding for improving Cold Tolerance in Rice |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110786215A (en) * | 2019-11-28 | 2020-02-14 | 吉林省辉农粳稻科学技术开发有限公司 | Cultivation method of selenium-rich rice |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104982271A (en) * | 2015-06-11 | 2015-10-21 | 华南农业大学 | Method of processing rice seed and rice shoot for improving paddy rice resistance performance |
-
2018
- 2018-03-21 CN CN201810233966.8A patent/CN108243659A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104982271A (en) * | 2015-06-11 | 2015-10-21 | 华南农业大学 | Method of processing rice seed and rice shoot for improving paddy rice resistance performance |
Non-Patent Citations (3)
| Title |
|---|
| 曲江县农科所: "薄膜育秧不催芽的耐寒原理与利用价值", 《广东农业科学》 * |
| 李学: "不同温度条件对三种水稻品种种子催芽效果的影响", 《宁夏农学院学报》 * |
| 段里成 等: "低温胁迫对直播早稻出苗及幼苗生长的影响", 《广东农业科学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110786215A (en) * | 2019-11-28 | 2020-02-14 | 吉林省辉农粳稻科学技术开发有限公司 | Cultivation method of selenium-rich rice |
| CN110786215B (en) * | 2019-11-28 | 2021-08-27 | 吉林省辉农粳稻科学技术开发有限公司 | Cultivation method of selenium-rich rice |
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Application publication date: 20180706 |