CN103931448A - Hybrid rice seed production male parent and female parent same-period mechanical rice transplanting method - Google Patents
Hybrid rice seed production male parent and female parent same-period mechanical rice transplanting method Download PDFInfo
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- CN103931448A CN103931448A CN201410095924.4A CN201410095924A CN103931448A CN 103931448 A CN103931448 A CN 103931448A CN 201410095924 A CN201410095924 A CN 201410095924A CN 103931448 A CN103931448 A CN 103931448A
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Abstract
The invention relates to the technical field of rice cultivation, in particular to a hybrid rice seed production male parent and female parent same-period mechanical rice transplanting method. The method includes the steps of (1) selecting male parents and female parents, (2) cultivating rice seedlings, (3) taking the rice seedlings, and (4) conducting mechanical rice transplanting. By means of the method, the male parents sowed by stages, sparse sewing and seedling toughening are achieved, mechanical rice transplanting is carried out on the male parents and the female parents in the same period in an intersected mode, the male parents and the female parents bloom in the same period, the pollination rate of pollens can be improved, the labor input and the labor strength can be greatly reduced, the working efficiency can be improved, the hybrid rice seed production yield can be improved, and safe and efficient production and supplying of hybrid rice seeds in China can be guaranteed.
Description
Technical field
The present invention relates to rice cultivating technique field, is a kind of hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method specifically.
Background technology
Hybrid rice is increased production 15% left and right than conventional variety, approximately 2.4 hundred million mu of left and right of China's Annual planting area, it is applied China's rice yield and grain security is made to major contribution, and in Southeast Asia, main Chan Dao state applies, to global grain security performance significant role.Hybrid rice seeds can not be reserved seed for planting, and needs the specialized production of hybrid seeds, and the hybrid rice production of hybrid seeds is the important step that hybrid rice is applied to production.For a long time, China's hybrid rice production of hybrid seeds is artificial planting substantially, and the requirement of hybrid rice seeding technique is high, the amount of labour used is large, cost is high.In recent decades, Chinese society rapid economic development, rural laborer shifts to city and non-agricultural industries in a large number, the hybrid rice production of hybrid seeds of manual plantation has caused hybrid rice planting cost significantly to rise, and because artificial planting operating efficiency is low, easily causes postpone season, the dislocation of Parent florescence, incur loss through delay the best and plant the phase, affect parents'growth and grow and flower synchronization, cause production declining; Particularly, to the double-linear hybrid rice production of hybrid seeds, easily cause the maternal fringe idiophase to meet with low temperature and disturb and fertility fluctuation, reduce seed purity, cause heavy losses to producing, these seriously restrict the development of hybrid rice industry.
The most hybrid rice Parent of China differs larger breeding time, for the Parent that reaches the hybrid rice production of hybrid seeds meets flowering stage, and the rice transplanting by stages of general cross rice Parent.In hybrid rice production of hybrid seeds mechanized cultivation, Parent by stages rice transplanting not only difficulty is large, also increase labor.In production in the urgent need to the technology of plantation hybrid rice Parent same period, drop into and labour intensity significantly to reduce labour, increase work efficiency, ensure even safe and efficient production and the supply of world's hybrid rice seeds of China, continue to keep the first place in the world of China in hybrid rice technical field.
Existing seeding technique is that seedling is manually sowed respectively in the employing of hybrid rice Parent, the mode of by stages transplanting, and this mode operation is loaded down with trivial details, and the amount of labour used is large, and cost is higher.Manually transplant often due to labour's anxiety, cause to transplant to postpone season, affect hybrid seed yield and seed production quality, the hybrid rice producing method for seed of existing artificial planting has caused sharp rising of hybrid rice seed cost, and these have seriously restricted the development of hybrid rice.In view of the complexity of breeding of hybrid rice, Mechanicalized seeding method of hybrid rice has also only been realized mechanical work in part link at present, as female parent adopt the machine transplanting of rice or machine live, it is quite large that male parent realizes machinery difficulty live or machine rice transplantation, and also cannot large-area applications.
Summary of the invention
The present invention is directed to the hybrid rice production of hybrid seeds many, the problem such as cost is high, mechanization degree is low of taking a lot of work, a kind of hybrid rice Parent machine transplanting of rice same period method is provided, be beneficial to save labour, reduce costs, ensure safe and efficient production and the supply of China's hybrid rice seeds, continue to keep the first place in the world of China in hybrid rice technical field.
For achieving the above object, the technical solution used in the present invention is: a kind of hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method, comprises the steps:
(1) Parent is selected: select the hybrid rice parents that differs 0～10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, when seedling, male parent is divided 2 phases sowings, the 1st phase is early than sowing in maternal 12 days, and the 2nd phase is early than sowing in maternal 7 days, in the time that rice shoot reaches one heart stage of leaf, regulates rice shoot height by 300g/ mu paclobutrazol;
(3) seedling taking: when the maternal length of time rice seedlings grow be 15～18 days, the male parent length of time rice seedlings grow, while being 22～30 days, female parent seedling taking amount was routinely carried out machine transplanting of rice seedling taking, male parent seedling taking amount more maternal large 20%～30% is carried out machine transplanting of rice seedling taking;
(4) machine transplanting of rice: carry out the machine transplanting of rice by the sequence alternate of male parent, female parent, male parent.
Further, when the middle seedling cultivation of described step (2), maternal thickness of sowing is 2.5～3/cm
2, the thickness of sowing of male parent is 1～1.5/cm
2.
Further, when the middle machine transplanting of rice of described step (4), male parent line number is two row, and maternal line number is 8 row.
Further, described two row male parents comprise 1 phase of a line male parent and 2 phase of a line male parent.
Further, male parent row and maternal capable intersection when the machine transplanting of rice in described step (4).
Further, in described step (4) when the machine transplanting of rice male parent row with maternal capable parallel.
Useful technique effect of the present invention is: the inventive method male parent interval sowing, seedling is strengthened in light seeding, with intersect the machine transplanting of rice the maternal same period, Parent is bloomed the same period, can improve the pollination rate of pollen, reduce significantly labour and dropped into and labour intensity, increase work efficiency, improve Rice Hybrid Seed Production, ensure safe and efficient production and the supply of China's hybrid rice seeds.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of machine transplanting of rice result of embodiment of the present invention figure;
Fig. 2 is the another kind of machine transplanting of rice result of embodiment of the present invention figure;
Fig. 3 is the third machine transplanting of rice result of embodiment of the present invention figure.
embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
(1) Parent is selected: select the hybrid rice parents that differs 0～10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, when seedling, poor according to the Parent florescence, male parent is divided the sowing of 2 phases, the 1st phase is early than sowing in maternal 12 days, and the 2nd phase is early than sowing in maternal 7 days, in the time that rice shoot reaches one heart stage of leaf, regulates rice shoot height by 300g/ mu paclobutrazol;
Wherein, maternal thickness of sowing is 2.5/cm
2, the thickness of sowing of male parent is 1/cm
2;
(3) seedling taking: be 15 days, the male parent length of time rice seedlings grow while being 22 days when the maternal length of time rice seedlings grow, maternal by the conventional seedling taking amount of machine transplanting of rice machine transplanting of rice seedling taking, more maternal large 20% machine transplanting of rice seedling taking of male parent seedling taking amount;
(4) machine transplanting of rice: carry out the machine transplanting of rice by the sequence alternate of male parent, female parent, male parent, when the machine transplanting of rice, male parent line number is 2 row (comprising 1 phase of a line male parent and 2 phase of a line male parent), maternal line number is 8 row, male parent row and the maternal capable machine transplanting of rice that intersects when transplanting, and machine transplanting of rice result is as shown in Figure 1.
After the machine transplanting of rice, field management is consistent with tradition, strictly controls disease pest and weed, and field moisture adopts dry wet irrigation.
Embodiment 2
(1) Parent is selected: select the hybrid rice parents that differs 0～10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, when seedling, poor according to the Parent florescence, male parent is divided the sowing of 2 phases, the 1st phase is early than sowing in maternal 12 days, and the 2nd phase is early than sowing in maternal 7 days, in the time that rice shoot reaches one heart stage of leaf, regulates rice shoot height by 300g/ mu paclobutrazol;
Wherein, maternal thickness of sowing is 3/cm
2, the thickness of sowing of male parent is 1.5/cm
2;
(3) seedling taking: be 17 days, the male parent length of time rice seedlings grow while being 26 days when the maternal length of time rice seedlings grow, maternal by the conventional seedling taking amount of machine transplanting of rice machine transplanting of rice seedling taking, more maternal large 25% machine transplanting of rice seedling taking of male parent seedling taking amount;
(4) machine transplanting of rice: carry out the machine transplanting of rice by the sequence alternate of male parent, female parent, male parent, when the machine transplanting of rice, male parent line number is 2 row (comprising 1 phase of a line male parent and 2 phase of a line male parent), maternal line number is 8 row, male parent row and the parallel machine transplanting of rice of maternal row, machine transplanting of rice result is as shown in Figure 2.
After the machine transplanting of rice, field management is consistent with tradition, strictly controls disease pest and weed, and field moisture adopts dry wet irrigation.
Embodiment 3
(1) Parent is selected: select the hybrid rice parents that differs 0～10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, when seedling, poor according to the Parent florescence, male parent is divided the sowing of 2 phases, the 1st phase is early than sowing in maternal 12 days, and the 2nd phase is early than sowing in maternal 7 days, in the time that rice shoot reaches one heart stage of leaf, regulates rice shoot height by 300g/ mu paclobutrazol;
Wherein, maternal thickness of sowing is 2.7/cm
2, the thickness of sowing of male parent is 1.3/cm
2;
(3) seedling taking: be 18 days, the male parent length of time rice seedlings grow while being 30 days when the maternal length of time rice seedlings grow, maternal by the conventional seedling taking amount of machine transplanting of rice machine transplanting of rice seedling taking, more maternal large 25% machine transplanting of rice seedling taking of male parent seedling taking amount;
(4) machine transplanting of rice: carry out the machine transplanting of rice by the sequence alternate of male parent, female parent, male parent, when the machine transplanting of rice, male parent line number is 2 row (comprising 1 phase of a line male parent and 2 phase of a line male parent), maternal line number is 8 row, first phase male parent and the maternal capable machine transplanting of rice that intersects when transplanting, second phase male parent and the parallel machine transplanting of rice of maternal row, make the male parents of two dates of seeding, and first phase is parallel with female parent, another phase intersects with maternal, and machine transplanting of rice result as shown in Figure 3.
After the machine transplanting of rice, field management is consistent with tradition, strictly controls disease pest and weed, and field moisture adopts dry wet irrigation.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method, is characterized in that, comprises the steps:
(1) Parent is selected: select the hybrid rice parents that differs 0～10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, when seedling, male parent is divided 2 phases sowings, the 1st phase is early than sowing in maternal 12 days, and the 2nd phase is early than sowing in maternal 7 days, in the time that rice shoot reaches one heart stage of leaf, regulates rice shoot height by 300g/ mu paclobutrazol;
(3) seedling taking: when the maternal length of time rice seedlings grow be 15～18 days, the male parent length of time rice seedlings grow, while being 22～30 days, female parent seedling taking amount was routinely carried out machine transplanting of rice seedling taking, male parent seedling taking amount more maternal large 20%～30% is carried out machine transplanting of rice seedling taking;
(4) machine transplanting of rice: carry out the machine transplanting of rice by the sequence alternate of male parent, female parent, male parent.
2. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method according to claim 1, is characterized in that, in described step (2), when seedling cultivation, maternal thickness of sowing is 2.5～3/cm
2, the thickness of sowing of male parent is 1～1.5/cm
2.
3. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method according to claim 1, is characterized in that, in described step (4), male parent line number is two row when the machine transplanting of rice, and maternal line number is 8 row.
4. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method according to claim 3, is characterized in that, described two row male parents comprise 1 phase of a line male parent and 2 phase of a line male parent.
5. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method according to claim 1, is characterized in that, male parent row and maternal capable intersection when the machine transplanting of rice in described step (4).
6. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method according to claim 1, is characterized in that, in described step (4) when the machine transplanting of rice male parent row with maternal capable parallel.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107950383A (en) * | 2017-12-08 | 2018-04-24 | 江苏沿海地区农业科学研究所 | A kind of small area producing method for seed of hybrid rice with the different female Combination nova of father |
| CN111264322A (en) * | 2020-03-27 | 2020-06-12 | 四川农业大学 | Method for judging flower-season crossing of hybrid rice parents in mechanical transplanting seed production based on poor planting period |
| CN116138160A (en) * | 2022-12-25 | 2023-05-23 | 四川农业大学 | Efficient sowing and planting method for transplanting male parent in flowering phase of different-sowing same-swing extender |
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| CN1129055A (en) * | 1995-11-08 | 1996-08-21 | 四川省原子核应用技术研究所 | Breeding method for hybrid rice |
| CN101317546A (en) * | 2008-06-18 | 2008-12-10 | 施建达 | Mechanized production of hybrid seeds by using combined parent strain hybridization crop |
| CN101336608A (en) * | 2007-07-03 | 2009-01-07 | 西南科技大学 | Hybrid rice seed-production two-period male-parent one-period sowing method |
| CN103392589A (en) * | 2013-07-25 | 2013-11-20 | 巢湖春友种业科技有限公司 | New method for hybrid rice seed production |
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2014
- 2014-03-14 CN CN201410095924.4A patent/CN103931448B/en active Active
Patent Citations (4)
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| CN1129055A (en) * | 1995-11-08 | 1996-08-21 | 四川省原子核应用技术研究所 | Breeding method for hybrid rice |
| CN101336608A (en) * | 2007-07-03 | 2009-01-07 | 西南科技大学 | Hybrid rice seed-production two-period male-parent one-period sowing method |
| CN101317546A (en) * | 2008-06-18 | 2008-12-10 | 施建达 | Mechanized production of hybrid seeds by using combined parent strain hybridization crop |
| CN103392589A (en) * | 2013-07-25 | 2013-11-20 | 巢湖春友种业科技有限公司 | New method for hybrid rice seed production |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107950383A (en) * | 2017-12-08 | 2018-04-24 | 江苏沿海地区农业科学研究所 | A kind of small area producing method for seed of hybrid rice with the different female Combination nova of father |
| CN111264322A (en) * | 2020-03-27 | 2020-06-12 | 四川农业大学 | Method for judging flower-season crossing of hybrid rice parents in mechanical transplanting seed production based on poor planting period |
| CN111264322B (en) * | 2020-03-27 | 2022-01-21 | 四川农业大学 | Method for judging flower-season crossing of hybrid rice parents in mechanical transplanting seed production based on poor planting period |
| CN116138160A (en) * | 2022-12-25 | 2023-05-23 | 四川农业大学 | Efficient sowing and planting method for transplanting male parent in flowering phase of different-sowing same-swing extender |
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