CN106718989A - A kind of producing method for seed of hybrid rice - Google Patents
A kind of producing method for seed of hybrid rice Download PDFInfo
- Publication number
- CN106718989A CN106718989A CN201611039696.4A CN201611039696A CN106718989A CN 106718989 A CN106718989 A CN 106718989A CN 201611039696 A CN201611039696 A CN 201611039696A CN 106718989 A CN106718989 A CN 106718989A
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- China
- Prior art keywords
- parent
- male parent
- seed
- hybrid rice
- producing method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
Abstract
The present invention provides a kind of producing method for seed of hybrid rice, by on the day of catching up with powder to terminate or second day slices off male parent, after the method for gathering in hybrid seed after maternal maturation again, male parent is avoided to lodge on female parent, ensure that rainwater or dew on female parent dry in time, be conducive to improving seed quality, male parent slices off rear working line space increase, pest and disease damage generation can be reduced, facilitate the field management such as later stage laxative removal of impurities, be conducive to improving maternal mass of 1000 kernel, improve yield, in addition, the male parent for slicing off does not have germinating capacity, field can be placed directly on, field need not manually be embraced out, reduce recruitment, it is cost-effective.
Description
Technical field
The invention belongs to hybrid rice technical field, and in particular to a kind of producing method for seed of hybrid rice.
Background technology
The population of the nearly half in the world is food with rice, and hybrid rice has very important status in China and in the world,
Lack the increasingly serious of situation however as China human mortality aging, rural laborer, to the hybrid seed yield sum of hybrid rice
Amount requires more and more higher.
In the production of hybrid seeds of hybrid rice, it will usually impose gibberellin and release maternal phimosis, and the administration of gibberellin can promote
Culm of Rice increases very thin, causes lodging tolerance to die down.In order to preferably pollinate, all male parent can typically be higher by maternal 20 lis
Rice or so, but so male parent is easy to lodging on female parent, and if meeting with rainy weather, moisture can not in time dry, hold very much
Easily make maternal (hybrid seed) head sprouting, have a strong impact on quality.Growth can cause field to divulge information not freely while Parent, hold
Easily there is pest and disease damage, while the maternal mass of 1000 kernel near male parent row limit also can be smaller, yield can be reduced.Traditional producing method for seed
All it is after powder has been caught up with, to start within 2-3 days or so to gather in male parent when male parent seed maturity or before maternal seed harvesting, if the method
Because the reasons such as weather slightly postpone, male parent, if in mixing female parent, will influence maternal quality, will be caused with germinating capacity
The decline of production of hybrid seeds quantity and seed quality.
A kind of producing method for seed of hybrid rice (Application No. 201510462740.1) of patent discloses a kind of by male parent
Point field is planted, and by pollen tissue culture propagation, the method that then breeding of hybrid rice is realized in artificial pollination the method increase cenospecies
Son purity, save field area, field is divulged information, but powder processed and pollinate complex procedures, take time and effort, increase work
Cost.
The content of the invention
It is an object of the invention to provide a kind of producing method for seed of hybrid rice, the method by slicing off male parent in advance can be with
Enhancing field divulges information, is easy to the field management such as weeding deinsectization, so as to improve the purity of hybrid seed, improves the yield and matter of the production of hybrid seeds
Amount, it is cost-effective.
The invention provides following technical scheme：
A kind of producing method for seed of hybrid rice, comprises the following steps：
Step I：According to local weather conditions and the heading poplar bloassom phase of hybrid rice, precise arrangements are maternal and male parent
Sowing time and field management；
Step II：Gibberellin is applied to male parent and female parent；
Step III：When Parent starts to bloom successively, proceeded by with rope or bamboo pole and manually catch up with powder, Parent to bloom
Stop catching up with powder after end；
Step IV：Male parent is sliced off, field management then is carried out to female parent；
Step V：Gathered in after maternal maturation, hybrid rice seeds are dried and are stored.
Preferably, in step I, parental is 2：6 or 2：7, the ratio can ensure field well-ventilated, favorably
In the plant strain growth of Parent.
Preferably, in step II, the amount of gibberellin adds 5%-10% on the basis of general dosage, it is possible to reduce gibberellin
Application times, reduces cost.
Preferably, in step III, it is 7-10 days continuously to catch up with the powder time, it is ensured that maternal fully pollination.
Preferably, in step IV, the time for slicing off male parent is off catching up with the same day or second day of powder.
Preferably, in step IV, after male parent is sliced off, the remaining rice stub of the male parent is highly 1-20 centimetres, can be avoided
Because rice stub stay it is too high, the later stage ears solid, it is necessary to clear up male parent again again.
The beneficial effects of the invention are as follows：
1st, male parent is sliced off in advance after catching up with powder to terminate, male parent can be avoided to lodge on female parent, it is ensured that the rainwater on female parent
Or dew dries in time, head sprouting is prevented, improve seed quality.
2nd, slice off in advance after male parent, the field management such as later stage laxative removal of impurities are easy in the increase of working line space, and working line is empty
Between increase can strengthen field ventilation, reduce pest and disease damage and occur, while have also been enlarged previously near the maternal side of male parent row
Border effect, improves maternal mass of 1000 kernel, improves yield.
3rd, after slicing off male parent in advance, after after maternal maturation, female parent can in time be gathered according to weather condition, it is to avoid first receive
Male parent is cut, then gathers in maternal situation, prevent the harvesting of delaying of female parent from causing seed quality to decline.
4th, manually powder is caught up with to slice off male parent after terminating immediately, now male parent not yet possesses germinating capacity, and the male parent for slicing off can
To be placed directly on field, it is not necessary to artificial to embrace field, recruitment is reduced, it is cost-effective.
Specific embodiment
Embodiment 1
It is 2 with parental according to local weather conditions and the heading poplar bloassom phase of hybrid rice：6, precise arrangements
The sowing time of maternal and male parent and field management；Gibberellin is applied to male parent and female parent, the amount of gibberellin used is in general dosage
On the basis of Jia 5%；When Parent starts to bloom successively, proceeded by with rope or bamboo pole and manually catch up with powder, it is 7 to catch up with the powder time
My god, stop catching up with powder after Parent blooms end；Then male parent, the remaining rice stub of the male parent are sliced off on the day of stopping catching up with powder
It is highly 10 centimetres, field management then is carried out to female parent；Gathered in after after maternal maturation, hybrid rice seeds are done
Dry and storage, through counting the per mu yield than the producing method for seed per mu yield of harvesting male parent does not improve 7% in advance.
Embodiment 2
It is 2 with parental according to local weather conditions and the heading poplar bloassom phase of hybrid rice：7, precise arrangements
The sowing time of maternal and male parent and field management；Gibberellin is applied to male parent and female parent, the amount of gibberellin used is in general dosage
On the basis of Jia 10%；When Parent starts to bloom successively, proceeded by with rope or bamboo pole and manually catch up with powder, it is 10 to catch up with the powder time
My god, stop catching up with powder after Parent blooms end；Then male parent, the remaining rice stub of the male parent are sliced off on the day of stopping catching up with powder
It is highly 20 centimetres, field management then is carried out to female parent；Gathered in after after maternal maturation, hybrid rice seeds are done
Dry and storage, through counting the per mu yield than the producing method for seed per mu yield of harvesting male parent does not improve 15% in advance.
Embodiment 3
It is 2 with parental according to local weather conditions and the heading poplar bloassom phase of hybrid rice：6, precise arrangements
The sowing time of maternal and male parent and field management；Gibberellin is applied to male parent and female parent, the amount of gibberellin used is in general dosage
On the basis of Jia 8%；When Parent starts to bloom successively, proceeded by with rope or bamboo pole and manually catch up with powder, it is 8 to catch up with the powder time
My god, stop catching up with powder after Parent blooms end；Then male parent, the remaining rice stub of the male parent are sliced off on the day of stopping catching up with powder
It is highly 15 centimetres, field management then is carried out to female parent；Gathered in after after maternal maturation, hybrid rice seeds are done
Dry and storage, through counting the per mu yield than the producing method for seed per mu yield of harvesting male parent does not improve 10% in advance.
Comparative example
It is 2 with parental according to local weather conditions and the heading poplar bloassom phase of hybrid rice：6, precise arrangements
The sowing time of maternal and male parent and field management；Gibberellin is applied to male parent and female parent, the amount of gibberellin used is in general dosage
On the basis of Jia 8%；When Parent starts to bloom successively, proceeded by with rope or bamboo pole and manually catch up with powder, it is 8 to catch up with the powder time
My god, stop catching up with powder after Parent blooms end；Male parent is first gathered in after Parent is ripe, then female parent is gathered in, finally
Hybrid rice seeds are dried and are stored.Because male parent lodging in part on female parent, experiences overcast and rainy stepmother in planting process
This head sprouting, has had a strong impact on seed quality and ultimate output.Additionally, there is germinating capacity before male parent harvesting, need artificial
Embrace field, increased labour.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, although with reference to foregoing reality
Apply example to be described in detail the present invention, for a person skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic.It is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (6)
1. a kind of producing method for seed of hybrid rice, it is characterised in that comprise the following steps：
Step I：According to local weather conditions and the heading poplar bloassom phase of hybrid rice, maternal and male parent the sowing of precise arrangements
Phase and field management；
Step II：Gibberellin is applied to male parent and female parent；
Step III：When Parent starts to bloom successively, with rope or bamboo pole proceed by it is artificial catch up with powder, Parent is bloomed end
Stop catching up with powder afterwards；
Step IV：Male parent is sliced off, field management then is carried out to female parent；
Step V：Gathered in after maternal maturation, hybrid rice seeds are dried and are stored.
2. the producing method for seed of a kind of hybrid rice according to claim 1, it is characterised in that in step I, parental
It is 2：6 or 2：7.
3. the producing method for seed of a kind of hybrid rice according to claim 1, it is characterised in that in step II, gibberellin
Amount adds 5%-10% on the basis of general dosage.
4. the producing method for seed of a kind of hybrid rice according to claim 1, it is characterised in that in step III, catch up with the powder time
It is 7-10 days.
5. the producing method for seed of a kind of hybrid rice according to claim 1, it is characterised in that in step IV, slice off male parent
Time be off catching up with the same day or second day of powder.
6. the producing method for seed of a kind of hybrid rice according to claim 1, it is characterised in that in step IV, male parent is sliced off
Afterwards, the remaining rice stub of the male parent is highly 1-20 centimetres.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039696.4A CN106718989A (en) | 2016-11-11 | 2016-11-11 | A kind of producing method for seed of hybrid rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039696.4A CN106718989A (en) | 2016-11-11 | 2016-11-11 | A kind of producing method for seed of hybrid rice |
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| CN106718989A true CN106718989A (en) | 2017-05-31 |
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| CN201611039696.4A Pending CN106718989A (en) | 2016-11-11 | 2016-11-11 | A kind of producing method for seed of hybrid rice |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044201A (en) * | 1990-03-09 | 1990-08-01 | 江苏省农业科学院粮食作物研究所 | Hybrids of Indica and Japonica rice---inferior excellent No. two breeding method |
| CN102668976A (en) * | 2012-06-11 | 2012-09-19 | 广西壮族自治区农业科学院水稻研究所 | High-yield propagation method for trilineage sterile line of purple-leaf hybrid rice |
| CN102668975A (en) * | 2012-06-11 | 2012-09-19 | 广西壮族自治区农业科学院水稻研究所 | Method for producing seed by using three-line hybrid rice sterile line with purple leaf marker |
| CN103430830A (en) * | 2013-08-14 | 2013-12-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding and seed production method of high-quality, multi-resistant and high-yield three-line hybrid rice Zhenxianyou 146 |
| CN105123502A (en) * | 2015-08-25 | 2015-12-09 | 宁波市种植业管理总站 | Method for seed production of hybrid rice |
-
2016
- 2016-11-11 CN CN201611039696.4A patent/CN106718989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044201A (en) * | 1990-03-09 | 1990-08-01 | 江苏省农业科学院粮食作物研究所 | Hybrids of Indica and Japonica rice---inferior excellent No. two breeding method |
| CN102668976A (en) * | 2012-06-11 | 2012-09-19 | 广西壮族自治区农业科学院水稻研究所 | High-yield propagation method for trilineage sterile line of purple-leaf hybrid rice |
| CN102668975A (en) * | 2012-06-11 | 2012-09-19 | 广西壮族自治区农业科学院水稻研究所 | Method for producing seed by using three-line hybrid rice sterile line with purple leaf marker |
| CN103430830A (en) * | 2013-08-14 | 2013-12-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding and seed production method of high-quality, multi-resistant and high-yield three-line hybrid rice Zhenxianyou 146 |
| CN105123502A (en) * | 2015-08-25 | 2015-12-09 | 宁波市种植业管理总站 | Method for seed production of hybrid rice |
Non-Patent Citations (1)
| Title |
|---|
| 共青团中央青农部农村实用技术知识竞赛办公室: "《农业实用新技术》", 31 March 1992, 华夏出版社 * |
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