CN104585017A - Hybrid rice seed production method - Google Patents
Hybrid rice seed production method Download PDFInfo
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- CN104585017A CN104585017A CN201510010393.9A CN201510010393A CN104585017A CN 104585017 A CN104585017 A CN 104585017A CN 201510010393 A CN201510010393 A CN 201510010393A CN 104585017 A CN104585017 A CN 104585017A
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Abstract
The invention provides a hybrid rice seed production method. The hybrid rice seed production method comprises the following steps: selecting male and female parents of the Yongyou No.12 combination, the Yongyou No.15 combination or the Yongyou No.17 combination, selecting a lightly-coated mud field as planting soil, sowing the female parent on May 5th-15th every year and sowing the male parent on May 20th-30th every year; sowing seedlings into the field respectively after the seedling periods of the female parent and the male parent are finished, wherein the row ratio of the male parent to the female parent is 2:(8-10); determining whether to apply a plant growth regulator to the male parent or the female parent according to the growth conditions of the male parent and the female parent, wherein the heading period of the male parent is August 25th-30th, and the heading period of the female parent is August 28th-September 3rd; and harvesting the female parent on October 5th-15th. According to the method, the special sowing and seeding mode is adopted, the reasonable cultivation technology and field management are combined, the seed production yield can reach 200-225 kilograms per mu, and the purity of seeds is more than 97%.
Description
Technical field
The present invention relates to agricultural plantation technology field, be specifically related to the producing method for seed of a kind of hybrid rice.
Background technology
Rice in China cultivation history is remote.The breeding of short stem of the sixties in 20th century, make China's rice yield improve 30%, and 20 century 70s cultivate successful series of three-series hybrid rice again than Semidwarf rice output increased about 20%.This is twice great leap of China's paddy rice scientific and technological revolution.
Ningbo City, Zhejiang Province, since within 1975, carrying out the research of " three line method " rice heterosis utilization, has not been interrupted always, successively carry out late japonica hybrid rice, the glutinous type hybrid rice of late round-grained rice and Hybrids of Indica and Japonica Rice Combination seed selection and bear fruit.Since calendar year 2001, successively be bred as 3 cytoplasmic nuclear male sterile lines and more than 10 " river in Zhejiang Province is excellent " serial hybridization Rice Combinations, the hybrid rice industrialization simultaneously actively carrying out integrally turning to " educating numerous pushing away " core is attempted, put forth effort to expand and improve breeding scale processed, Quality and yield level, expand Indica-Japonica hybrid rice Seed Market, accelerate applying and achievements conversion of Indica-Japonica hybrid rice.
Neritic sediment in modern age is originated from light painting mud field, and soil layer is deep, homogeneous, based on fine sand and flour sand; Layer structure, color and luster is homogeneous, upper strata subacidity, lower floor's meta-alkalescence, and has calcareous to react and contain salinity.The light painting mud field content of organic matter is abundanter, and tilth is good, should kind property strong, preserve moisture and fertility performance is good, and soil nutrient slow release is strong, but plough horizon comparatively hardens, and permeability is poor, easy cross to stick with paste sink seedling.
Summary of the invention
The present invention with Along Zhejiang Coast light painting mud field for planting area, select " river in Zhejiang Province major clique row " Hybrid Rice Combinations of indica-japonica hybrid type, propose a kind of practicable, in conjunction with the hybrid rice seed breeding process of local soil types and resources characteristic, the method is by special sowing, slotting kind of a pattern, in conjunction with rational culture technique and field management, make hybrid seed yield every mu reach 200-225 kilogram, and seed purity is more than 97%.
The technical solution adopted in the present invention is:
A producing method for seed for hybrid rice, the method comprises the following steps:
(1) Parent of " river in Zhejiang Province excellent 12 " number combination or " river in Zhejiang Province excellent 15 " number combination or " river in Zhejiang Province excellent 17 " number combination is chosen, namely respectively with " river in Zhejiang Province round-grained rice A5 " be maternal, " F8001 " for male parent, or with " river in Zhejiang Province round-grained rice A14 " be maternal, " F5032 " for male parent, or with " river in Zhejiang Province round-grained rice A14 " be maternal, " F8001 " for male parent, planting area arable soil type is light painting mud field, wheat or Winter-Spring vegetables sized by previous crops, sowing female parent annual 5-15 day in May, 20-30 day in May sowing male parent, before and after Parent, broadcast poor 10-25 days;
(2) give basal dressing in nursery period, base manure is mixed by the mass ratio of 1 ︰ (1-3) by urea and composite fertilizer, and fertilizing amount is every mu of 70-80 kilogram;
(3) 16-18 days are made until male parent seedling, after maternal seedling makes terminate for 20-22 days, difference (non-concurrent) mechanization is inserted and is planted to land for growing field crops, and Parent collocation row is than being 2 ︰ (8-10) (namely by the plantation of male parent 2 row female parent 8-10 between-line spacing);
(4) apply fertilizer at field period, fertilizer is mixed by the mass ratio of 30 ︰ 15 ︰ (15-20) by urea, composite fertilizer, superphosphate, and fertilizing amount is every mu of 60-65 kilogram;
(5) determine whether give male parent or female parent imposes plant growth regulator (basic element of cell division is commonly called as " 920 ") according to parents'growth situation, make male parent heading stage be 25-30 day in August, maternal heading stage is 28-September 3 August;
(6) gather in male parent in 25-30 day in September, 5-15 day in October gathers in female parent.
As preferably, described composite fertilizer comprises each component of following parts by weight:: nitrogen 12-16 part, phosphorus pentoxide 12-16 part, potassium oxide 12-16 part.
Compared with prior art, the present invention has the following advantages and remarkable result:
(1) the present invention is with Eastern Zhejiang Coastal Area, light painting mud field as Ninghai is planting area, select special kinds " river in Zhejiang Province round-grained rice A5 " respectively, " river in Zhejiang Province round-grained rice A14 ", " river in Zhejiang Province round-grained rice A14 " makes female parent, " F8001 ", " F5032 ", " F8001 " makes male parent, by adopting the separately sowing of Parent different times, mechanization is inserted and is planted, and for the nutrient component feature of light painting mud field soil, specific fertilizer and plant growth regulator is selected to carry out regulable control, Parent is made to differ 3-5 days around heading stage, this is conducive to Parent and pollinates in flower synchronization, improve ripening rate, thus raising output.
(2) the present invention adopts Parent to arrange in pairs or groups row than 2 ︰ (8-10), more more reasonable than 1 ︰ (5-6) of the conventional hybridization paddy rice production of hybrid seeds through practice, be conducive to improving florescence pollination rate, and be conducive to improving seed purity, no matter be mechanically actuated or manual operation in addition, all be conducive to producing work management at ordinary times, save labour and production cost.
(3) by the producing method for seed of hybrid rice of the present invention, can be implemented in Along Zhejiang Coast light painting mud field and carry out plantation breeding of hybrid rice, hybrid seed yield every mu reaches 200-225 kilogram, and seed purity reaches more than 97%.
Embodiment
Below in conjunction with embodiment, the present invention is further described in detail.Iting is noted that following illustrating is all exemplary, being intended to the invention provides further instruction.Except as otherwise noted, all Science and Technology terms that the present invention uses have the identical meanings usually understood with the technical field of the invention personnel.
Experimental field: a certain light painting mud field being positioned at county magistrate street town, Ninghai, Ningbo City, Zhejiang Province;
Embodiment 1:
The present embodiment is chosen " river in Zhejiang Province round-grained rice A5 " makes female parent, " F8001 " makes male parent, and previous crops is wheat, and producing method for seed is as follows:
(1), May 20 day sowing male parent maternal in sowing on May 5th, 2013, broadcasts before and after Parent and differs from 15 days;
(2) give basal dressing in nursery period, base manure is mixed by the mass ratio of 1 ︰ 2 by urea and composite fertilizer, and fertilizing amount is 75 kilograms every mu; Composite fertilizer comprises each component of following parts by weight: 15 parts, nitrogen, phosphorus pentoxide 15 parts, potassium oxide 15 parts, lower same;
(3) make 17 days until male parent seedling, maternal seedling is when making 20 days, by special rice transplanting machine transplanting of rice kind to land for growing field crops, parental is 2 ︰ 10 (i.e. maternal 10 row of male parent 2 row, interval is planted);
(4) apply fertilizer at field period, fertilizer is mixed by the mass ratio of 30 ︰ 15 ︰ 20 by urea, composite fertilizer, superphosphate, every mu of fertilizing amount 65 kilograms;
(5) according to parents'growth situation, give male parent at heading stage and execute " 920 " and regulate, make male parent heading stage at 25-30 day in August, maternal heading stage in 28-September 3 August, before and after Parent heading period, differ 3-5 days;
(6) in harvesting on September 25 male parent, October 15, harvesting was maternal.
After maternal harvesting, calculate output be seed farm output, be 211 kilograms every mu.
Embodiment 2:
The present embodiment is chosen " river in Zhejiang Province round-grained rice A14 " for female parent, " F5032 " make male parent, and previous crops is wheat, and producing method for seed is as follows:
(1), May 30 day sowing male parent maternal in sowing on May 15th, 2013, broadcasts before and after Parent and differs from 15 days;
(2) give basal dressing in nursery period, base manure is mixed by the mass ratio of 1 ︰ 2 by urea and composite fertilizer, and fertilizing amount is 75 kilograms every mu; Composite fertilizer comprises each component of following parts by weight: 15 parts, nitrogen, phosphorus pentoxide 15 parts, potassium oxide 15 parts, lower same;
(3) make 16 days until male parent seedling, maternal seedling is when making 20 days, by special rice transplanting machine transplanting of rice kind to land for growing field crops, parental is 2 ︰ 10 (i.e. maternal 10 row of male parent 2 row, interval is planted);
(4) apply fertilizer at field period, fertilizer is mixed by the mass ratio of 30 ︰ 15 ︰ 18 by urea, composite fertilizer, superphosphate, every mu of fertilizing amount 63 kilograms;
(5) according to parents'growth situation, give male parent at heading stage and execute " 920 " and regulate, make male parent heading stage at 25-30 day in August, maternal heading stage in 28-September 3 August, before and after Parent heading period, differ 3-5 days;
(6) in harvesting on September 25 male parent, October 5, harvesting was maternal.
After maternal harvesting, calculate output be seed farm output, be 203 kilograms every mu.
Embodiment 3:
The present embodiment is chosen " river in Zhejiang Province round-grained rice A14 " for female parent, " F8001 " are male parent, and previous crops is vegetables, and producing method for seed is as follows:
(1), May 25 day sowing male parent maternal in sowing on May 15th, 2013, broadcasts before and after Parent and differs from 10 days;
(2) give basal dressing in nursery period, base manure is mixed by the mass ratio of 1 ︰ 2 by urea and composite fertilizer, and fertilizing amount is 75 kilograms every mu; Composite fertilizer comprises each component of following parts by weight: 15 parts, nitrogen, phosphorus pentoxide 15 parts, potassium oxide 15 parts, lower same;
(3) make 18 days until male parent seedling, maternal seedling is when making 21 days, by special rice transplanting machine transplanting of rice kind to land for growing field crops, parental is 2 ︰ 8 (i.e. maternal 8 row of male parent 2 row, interval is planted);
(4) apply fertilizer at field period, fertilizer is mixed by the mass ratio of 30 ︰ 15 ︰ 18 by urea, composite fertilizer, superphosphate, every mu of fertilizing amount 63 kilograms;
(5) according to parents'growth situation, give male parent at heading stage and execute " 920 " and regulate, make male parent heading stage at 25-30 day in August, maternal heading stage in 28-September 3 August, before and after Parent heading period, differ 3-5 days;
(6) in harvesting on September 30 male parent, October 5, harvesting was maternal.
After maternal harvesting, calculate output be seed farm output, be 197 kilograms every mu.
In above embodiment implementation process, damage by disease and insect adopts Unifying control, and same prior art, field management also adopts prior art, just no longer describes in detail here.
The above, be only the preferred embodiments of the present invention, should be understood that; for those skilled in the art; do not departing under core technology prerequisite of the present invention, also can make improving and improve, these extension and improvement also should belong to scope of patent protection of the present invention.Any change in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims.
Claims (2)
1. a producing method for seed for hybrid rice, is characterized in that comprising the following steps:
(1) Parent of " river in Zhejiang Province excellent 12 " number combination or " river in Zhejiang Province excellent 15 " number combination or " river in Zhejiang Province excellent 17 " number combination is chosen, namely respectively with " river in Zhejiang Province round-grained rice A5 " be maternal, " F8001 " for male parent, or with " river in Zhejiang Province round-grained rice A14 " be maternal, " F5032 " for male parent, or with " river in Zhejiang Province round-grained rice A14 " be maternal, " F8001 " for male parent, planting area arable soil type is the light painting mud field of previous crops barley and wheat or Winter-Spring vegetables, is sowing female parent annual 5-15 day in May, 20-30 day in May is sowing male parent;
(2) give basal dressing in nursery period, base manure is mixed by the mass ratio of 1 ︰ (1-3) by urea and composite fertilizer, and fertilizing amount is every mu of 70-80 kilogram;
(3) make 16-18 days until male parent seedling, after maternal seedling makes terminate for 20-22 days, insert kind to land for growing field crops respectively, Parent collocation row is than being 2 ︰ (8-10);
(4) apply fertilizer at field period, fertilizer is mixed by the mass ratio of 30 ︰ 15 ︰ (15-20) by urea, composite fertilizer, superphosphate, and fertilizing amount is every mu of 60-65 kilogram;
(5) according to father, maternal growing state, determine whether give male parent or female parent imposes plant growth regulator, make male parent heading stage be 25-30 day in August, maternal heading stage is 28-September 3 August;
(6) gather in male parent in 25-30 day in September, 5-15 day in October gathers in female parent.
2. the producing method for seed of a kind of hybrid rice according to claim 1, is characterized in that: described composite fertilizer comprises each component of following parts by weight: nitrogen 12-16 part, phosphorus pentoxide 12-16 part, potassium oxide 12-16 part.
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| CN201510010393.9A CN104585017A (en) | 2015-01-09 | 2015-01-09 | Hybrid rice seed production method |
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| CN201510010393.9A CN104585017A (en) | 2015-01-09 | 2015-01-09 | Hybrid rice seed production method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105669275A (en) * | 2015-11-27 | 2016-06-15 | 宁海县农业技术推广总站 | Base fertilizer for rice cultivation in paddy field on desalting mud polder |
| CN112740967A (en) * | 2021-01-29 | 2021-05-04 | 新疆农垦科学院 | Seed production method for three-line hybrid wheat precision hole sowing |
-
2015
- 2015-01-09 CN CN201510010393.9A patent/CN104585017A/en active Pending
Non-Patent Citations (4)
| Title |
|---|
| 周华成等: "杂交晚粳甬优8号制种技术", 《浙江农业科学》 * |
| 孙吉晶等: "甬优杂交稻育成16个新组合 产生效益18亿", 《粮油市场报》 * |
| 孙吉晶等: "甬优水稻再获高产 平均亩产842.1公斤,单产纪录858.5公斤", 《宁波日报》 * |
| 陈志良等: "杂交晚粳稻甬优2号制种技术", 《浙江农业科学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105669275A (en) * | 2015-11-27 | 2016-06-15 | 宁海县农业技术推广总站 | Base fertilizer for rice cultivation in paddy field on desalting mud polder |
| CN112740967A (en) * | 2021-01-29 | 2021-05-04 | 新疆农垦科学院 | Seed production method for three-line hybrid wheat precision hole sowing |
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