CN103931448B - Hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method - Google Patents
Hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method Download PDFInfo
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- CN103931448B CN103931448B CN201410095924.4A CN201410095924A CN103931448B CN 103931448 B CN103931448 B CN 103931448B CN 201410095924 A CN201410095924 A CN 201410095924A CN 103931448 B CN103931448 B CN 103931448B
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Abstract
The present invention relates to rice cultivating technique field, specifically a kind of hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method, comprise (1) Parent and select; (2) seedling cultivation; (3) seedling taking; (4) machine transplanting of rice step; 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, the pollination rate of pollen can be improved, decrease labour significantly and drop 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.
Description
Technical field
The present invention relates to rice cultivating technique field, specifically a kind of hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method.
Background technology
Hybrid rice is than conventional variety volume increase about 15%, China's Annual planting area about about 2.4 hundred million mu, it is applied and makes major contribution to China's rice yield and grain security, and in Southeast Asia, main Chan Dao state applies, and plays significant role safely to world food.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 is in a large number to city and non-agricultural industries transfer, the hybrid rice production of hybrid seeds of manual plantation has caused hybrid rice planting cost significantly to rise, and due to artificial planting operating efficiency low, easily cause postpone season, the Parent florescence misplaces, 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 maternal Jointing stage to meet with low temperature and disturb and fertility fluctuation, reduce seed purity, cause heavy losses to production, these seriously restrict the development of hybrid rice industry.
China's most hybrid rice Parent difference breeding time is comparatively large, for the Parent reaching 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 the urgent need to the technology of the hybrid rice Parent plantation same period in production, drop into and labour intensity significantly to reduce labour, increase work efficiency, ensure China even safe and efficient production of world's hybrid rice seeds and supply, continue to keep China in the first place in the world of hybrid rice technical field.
Existing seeding technique is that the employing of hybrid rice Parent manually sows seedling, the mode of by stages transplanting respectively, and this mode operation is loaded down with trivial details, and the amount of labour used is large, and cost is higher.Artificial transplanting is often nervous due to labour, causes to transplant to postpone season, and 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 seriously constrain the development of hybrid rice.In view of the complexity of breeding of hybrid rice, current Mechanicalized seeding method of hybrid rice also only achieves mechanical work on portion link, as female parent adopt the machine transplanting of rice or machine live, the difficulty that male parent then realizes Mechanical direct sowing or machine rice transplantation is quite large, and also cannot large-area applications.
Summary of the invention
The present invention is directed to the hybrid rice production of hybrid seeds to take a lot of work many, the problem such as cost is high, mechanization degree is low, 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 China in the first place in the world of 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 differing 0 ~ 10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, during seedling, male parent divides the sowing of 2 phases, and the 1st phase was early than sowing in maternal 12 days, 2nd phase, early than sowing in maternal 7 days, regulated rice shoot height when rice shoot reaches one heart stage of leaf 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, when being 22 ~ 30 days, female parent seedling taking amount routinely carried out machine transplanting of rice seedling taking, male parent seedling taking amount more maternal large 20% ~ 30% carries 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, in described step (2) during 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.
Further, in described step (4), during the machine transplanting of rice, male parent line number is two row, and maternal line number is 8 row.
Further, described two row male parents comprise a line 1 phase male parent and a line 2 phase male parent.
Further, in described step (4), during the machine transplanting of rice, male parent row intersects with female parent is capable.
Further, in described step (4), during the machine transplanting of rice, male parent row is capable parallel with female parent.
Advantageous Effects 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, the pollination rate of pollen can be improved, decrease labour significantly and drop 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.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of machine transplanting of rice result figure of embodiment of the present invention;
Fig. 2 is the another kind of machine transplanting of rice result figure of embodiment of the present invention;
Fig. 3 is the third machine transplanting of rice of embodiment of the present invention result figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
(1) Parent is selected: select the hybrid rice parents differing 0 ~ 10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, during seedling, poor according to the Parent florescence, male parent divides the sowing of 2 phases, 1st phase, the 2nd phase, early than sowing in maternal 7 days, regulated rice shoot height when rice shoot reaches one heart stage of leaf by 300g/ mu paclobutrazol early than sowing in maternal 12 days;
Wherein, maternal thickness of sowing is 2.5/cm
2, the thickness of sowing of male parent is 1/cm
2;
(3) seedling taking: when the maternal length of time rice seedlings grow be 15 days, the male parent length of time rice seedlings grow is when being 22 days, maternal by the machine transplanting of rice conventional seedling taking amount 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, during the machine transplanting of rice, male parent line number is 2 row (comprising a line 1 phase male parent and a line 2 phase male parent), maternal line number is 8 row, and during transplanting, male parent row and female parent are capable intersects the machine transplanting of rice, and machine transplanting of rice result as shown in Figure 1.
After the machine transplanting of rice, field management is consistent with tradition, strictly controls disease pest and weed, and water consumpation adopts dry and wet irrigation.
Embodiment 2
(1) Parent is selected: select the hybrid rice parents differing 0 ~ 10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, during seedling, poor according to the Parent florescence, male parent divides the sowing of 2 phases, 1st phase, the 2nd phase, early than sowing in maternal 7 days, regulated rice shoot height when rice shoot reaches one heart stage of leaf by 300g/ mu paclobutrazol early than sowing in maternal 12 days;
Wherein, maternal thickness of sowing is 3/cm
2, the thickness of sowing of male parent is 1.5/cm
2;
(3) seedling taking: when the maternal length of time rice seedlings grow be 17 days, the male parent length of time rice seedlings grow is when being 26 days, maternal by the machine transplanting of rice conventional seedling taking amount 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, during the machine transplanting of rice, male parent line number is 2 row (comprising a line 1 phase male parent and a line 2 phase male parent), maternal line number is 8 row, and the parallel machine transplanting of rice capable of female parent of male parent row, machine transplanting of rice result as shown in Figure 2.
After the machine transplanting of rice, field management is consistent with tradition, strictly controls disease pest and weed, and water consumpation adopts dry and wet irrigation.
Embodiment 3
(1) Parent is selected: select the hybrid rice parents differing 0 ~ 10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, during seedling, poor according to the Parent florescence, male parent divides the sowing of 2 phases, 1st phase, the 2nd phase, early than sowing in maternal 7 days, regulated rice shoot height when rice shoot reaches one heart stage of leaf by 300g/ mu paclobutrazol early than sowing in maternal 12 days;
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: when the maternal length of time rice seedlings grow be 18 days, the male parent length of time rice seedlings grow is when being 30 days, maternal by the machine transplanting of rice conventional seedling taking amount 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, during the machine transplanting of rice, male parent line number is 2 row (comprising a line 1 phase male parent and a line 2 phase male parent), maternal line number is 8 row, during transplanting, first phase male parent and female parent are capable intersects the machine transplanting of rice, the parallel machine transplanting of rice capable of female parent of second phase male parent, make the male parent of two dates of seeding, first phase is parallel with female parent, another phase intersects with female parent, 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 water consumpation adopts dry and wet irrigation.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method, is characterized in that, comprise the steps:
(1) Parent is selected: select the hybrid rice parents differing 0 ~ 10 day flowering stage;
(2) seedling cultivation: by male parent and maternal interval sowing seedling, during seedling, male parent divides the sowing of 2 phases, and the 1st phase was early than sowing in maternal 12 days, 2nd phase, early than sowing in maternal 7 days, regulated rice shoot height when rice shoot reaches one heart stage of leaf by 300g/ mu paclobutrazol;
During 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) seedling taking: when the maternal length of time rice seedlings grow be 15 ~ 18 days, the male parent length of time rice seedlings grow, when being 22 ~ 30 days, female parent seedling taking amount routinely carried out machine transplanting of rice seedling taking, male parent seedling taking amount more maternal large 20% ~ 30% carries 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 (4), during the machine transplanting of rice, male parent line number is two row, and maternal line number is 8 row.
3. hybrid rice production of hybrid seeds Parent machine transplanting of rice same period method according to claim 2, it is characterized in that, described two row male parents comprise a line 1 phase male parent and a line 2 phase male parent.
4. 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), during the machine transplanting of rice, male parent row intersects with female parent is capable.
5. 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), during the machine transplanting of rice, male parent row is capable parallel with female parent.
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| 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 |
| 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 |
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 |
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 《天优华占高产制种技术》;谭体古等;《中国稻米》;20101231;第57-58页 * |
| 《杂交籼稻制种基本操作技术规程》http://www.cqagri.gov.cn/veg/detail.asp?pubID=25388;佚名;《重庆蔬菜信息》;20020418;参见第1-2页4-5 * |
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