CN111727829A - Method for producing seeds of hybrid rice by transplanting male parent and female parent in one-machine same-body manner - Google Patents
Method for producing seeds of hybrid rice by transplanting male parent and female parent in one-machine same-body manner Download PDFInfo
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- CN111727829A CN111727829A CN202010646864.6A CN202010646864A CN111727829A CN 111727829 A CN111727829 A CN 111727829A CN 202010646864 A CN202010646864 A CN 202010646864A CN 111727829 A CN111727829 A CN 111727829A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
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Abstract
The invention discloses a method for producing seeds of hybrid rice by transplanting male and female parents in the same machine and in the same body, belonging to the field of agricultural hybrid rice seed production. The method is based on the conventional rice transplanter with the row spacing of 30cm, and carries out the steps of setting the row ratio of parents and parents, sowing and raising seedlings according to the amount of the parents and the parents, and setting the transplanting route for the simultaneous transplanting of the parents and the parents, so that the purposes of realizing the simultaneous transplanting of the parents and the parents by using the conventional rice transplanter, meeting the special requirements of seed production due to different hole seedling numbers of the parents and the parents, increasing the initial spike difference of the parents in the first period and the second period, prolonging the flowering phase, obviously distinguishing the parents and the parents, omitting the work of compartment division and.
Description
Technical Field
The invention belongs to the field of agricultural hybrid rice seed production, and particularly relates to a hybrid rice male and female parent same-body mechanical transplanting seed production method.
Background
The development of the hybrid rice seed production industry as a premise of grain guarantee must be guaranteed, and the trend that rural labor force is seriously aged and no human seed field is possible in the future is faced, so that the road that the hybrid rice seed production must be developed mechanically is promoted. The seeding mechanization is the first link of seed production mechanization, and the combination type which is most easily realized is the combination with the similar broadcasting beginning period of the parent. In view of the above, many researchers have developed researches, one category of which is conquered from the agronomic technology, such as introducing bentazon-sensitive (lethal) genes into male parents or introducing brown shell marker genes into male parents or female parents or screening male and female parent combinations with large grain type differences, the methods have long periods required for breeding male parents or female parents containing the contained genes, generally more than 5 years are required (breeding processes of early restorer lines or sterile lines are not included), the breeding efficiency is low, meanwhile, the technology and materials are incompatible with the existing hybrid rice combinations, the methods cannot be directly applied to the seed production of the existing combinations, and the risks that a small number of regions cannot be distinguished exist in both color selection and grain type screening exist, so that the seed purity has great risks; the other type is considered from a transplanting machine, the key point of the research is that a novel transplanter is invented according to the row ratio of the traditional seed production and the requirement of the female parent for high basic seedling, the row spacing of the female parent is reduced, the transplanting row number of the female parent is increased, and the requirement of the female parent for basic seedling is met, for example, the row spacing of the female parent is changed into 177 mm; and the rice transplanter with the screened row spacing of 25cm is used for transplanting rice seedlings of a seed making machine. At present, a special machine for producing seeds with 177mm row spacing is eliminated, and a 25cm row spacing transplanter is considered as a special transplanter for producing seeds. But has the defect of slow mechanical popularization process of the machine and the seed production due to narrow application range.
The 25cm row spacing transplanter is applied to japonica rice and early rice at present except seed production, and the reason for the application is that the rice and the early rice have limited tillering capability and small spikes and are high in yield mainly depending on multiple spikes, and some varieties of the 25cm row spacing transplanter can be high in yield due to the increase of basic seedlings. However, Sichuan, which is one of the seed production provinces of 6 major hybrid rice nationwide, does not have the planting of early season rice and large-scale japonica rice. According to data of 2018, 95% of Sichuan is planted by hybrid rice, while only 6% of hybrid rice is japonica rice and the rest is hybrid indica rice, which indicates that the rice transplanter with the row spacing of 25cm in Sichuan area can be almost only used for transplanting of a seed production machine. Meanwhile, the seed production area of the hybrid rice in Sichuan only accounts for 0.83 percent of the planting area of the rice in Sichuan, and it is conceivable that only few households are willing to purchase special rice transplanters and seedling trays for high-risk hybrid rice seed production at a large cost, thereby limiting the development of machine-transplanted seed production.
In addition, a research discloses a technology that the seeding quantity of the male parent is consistent and smaller than that of the female parent in two periods under the row spacing of 25cm, and the transplanting age is controlled within 20d, wherein the technology has the advantages that firstly, the row spacing is changed, the whole rice population is changed, and the narrow-row-spacing technology cannot be directly applied to the wide-row spacing; secondly, the suitable seedling age for planting is about 30d when the seedling is generally sowed early in light illumination areas such as the equal-length rivers and the upper reaches of Sichuan, and the seedling age is too short to be packed and then cannot be transplanted by a machine; thirdly, the seeding rate of the male parent is the same in the two periods, if the thousand seed weight is the same as that of the female parent, the seeding rate per cm is the same2The seedling is about 1.5, the density is also larger, the seedling grows to a certain time, the lag phase occurs, the leaf age cannot be increased, and tillering cannot occur, so that although the male parents in the two phases have time difference, the male parent in the last two phases may catch up with the male parent in the first phase, the difference between the two phases is smaller and smaller, the purpose of prolonging the flowering phase of the male parent cannot be achieved, the thousand-grain weight of the male parent is unknown, although the seeding weights of the male parent and the female parent are different, whether the difference between the two final seedlings is large cannot be judged, whether the male parent and the female parent can be clearly distinguished after planting cannot be judged, and the fertilizer application of the male parent and the female parent is inconvenient to manage; moreover, the planting is always carried out according to a normal 2:7 compartment, the planting can not be finished at the turning end of the rice transplanter on one compartment all the time, the manual seedling supplement is needed, and the great labor cost is caused. In the planting and transplanting mode, two planting and transplanting modes under a 25cm narrow row spacing transplanter are available in the production at present, one mode is to use two transplanters to transplant a male parent and a female parent, but the number of rows of the female parent is generally more, and one transplanter waits for waiting for the plantingIn the other situation, the male parent is planted firstly, the female parent compartment is reserved by drawing the compartment with the pull rope, and the female parent is planted after the male parent is planted, but the efficiency is low and the labor is wasted.
In summary, the conventional techniques have such problems, which hinder the popularization of the techniques in seed production, especially limit the mechanization of seed production in regions such as Sichuan and the like, and it is urgently needed to provide new seed production techniques to promote the mechanization of seed production.
Disclosure of Invention
The invention aims to: aiming at the defects that the novel rice transplanter invented by similar combined seed production in the sowing initial period and the prior art and the 25cm narrow row spacing rice transplanter have narrow application surface, limited popularization and application in regions such as Sichuan and the like, overlong time consumption for screening strong dominant combinations containing special genes, labor and time consumption for planting by two rice transplanters and the like, the method for carrying out the same-body machine-transplanting seed production of male and female parents of hybrid rice by utilizing the conventional 30cm wide row spacing rice transplanter is provided.
The technical scheme adopted by the invention is as follows:
a method for producing seeds of hybrid rice by transplanting male and female parents in the same machine and in the same body comprises the following steps:
s1, setting a parent row ratio: setting row ratios according to the conventional transplanter with a row spacing of 30cm and a row spacing of 6 machines and 8 machines respectively;
s2, sowing the parents in a quantitative mode: 6-7 ten thousand seed seedlings are set for female parent per mu of basic seedlings, 0.9-1 ten thousand seed seedlings are set for male parent per mu of basic seedlings, wherein the number of grown seedlings per unit area of the male parent in one period is 1.0-1.2 plants/cm2The seedling number of the male parent in the second period per unit area is 1.3-1.5 times that of the male parent in the first period, and the seedling number of the female parent in the unit area is 1.7-2.5 times that of the male parent in the first period;
s3, transplanting the male parent and the female parent of the line simultaneously and mechanically: arranging a tractor-ploughing channel close to the ridge as an A side, wherein the opposite side of the tractor-ploughing channel is a C side, the first turning direction of the rice transplanter is a B side, and the opposite side of the tractor-ploughing channel is a D side; the male parent in the first period and the second period respectively places 1 row of seedling blocks, 2 rows of seedling blocks in total, the rest 4 rows or 6 rows of female seedling blocks, and B, C, D sides respectively reserve a transplanter platform width R for collecting the edges.
Further, in S1, the parent row ratio of 6 machines is 2:8, and the parent row ratio of 8 machines is 4: 12.
Further, the seedling raising seeding amount in the S2 is calculated according to the average unit area seedling forming number: the seeding amount per tray is (area of seedling tray x number of grown seedlings per unit area x thousand seed weight)/(1000 x germination rate x seedling rate); the number of days of seedling age is set as X for the first-stage male parent, Y for the second-stage male parent, Z for the female parent, and the original sowing difference period P is the first-stage male parent sowing initial period-the female parent sowing initial period, then Y is X- (5-10), when P is more than or equal to 0, Z is X-P, when P is less than 0, Z is X-P/2, wherein P is less than or equal to 10, X is less than or equal to 30, and Z is less than or equal to 30.
Furthermore, a combination that the original broadcast difference period P of the parents is less than or equal to 10 days, namely a combination with similar broadcast beginning periods, is adopted to adapt to simultaneous machine insertion.
Furthermore, when 6-row machine transplanting is used in S3, all the seedling claws are fully opened from edge D to edge B, two rows near edge A are used as male parents, and two rows of male parents are closed to transplant the seedling claws when the edge B reaches edge D, so that the field is repeatedly inserted and finally the edges are locked.
Furthermore, when 8-machine transplanting is carried out in S3, all seedling claws are fully opened from edge D to edge B, two rows near edge A are used as male parents, all seedling claws are fully opened from edge B to edge D, two rows near edge C are used as male parents, the field is repeatedly inserted, and finally, the edge locking is carried out.
Furthermore, when planting is carried out in S3, the row spacing of the parents is 30cm multiplied by (12-14) cm.
Furthermore, the average female parent cave seedling number is 4.5-5.5 seedlings, the average first-stage male parent cave seedling number is 2-3 seedlings, and the average second-stage male parent cave seedling number is 3-4 seedlings.
Furthermore, the continuous missed transplanting of the first-stage male parent is less than 6 holes, and the continuous missed transplanting of the second-stage male parent is less than 4 holes, so that seedling supplement is not needed.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, the flower season meeting of male and female parents is better caused by the combined regulation of three measures, namely, the seedling number of the male parents in the first period per unit area is 1.0-1.2 plants/cm2The seedling number of the second-stage male parent per unit area is 1.3-1.5 times of that of the first-stage male parent, the seeding amount of the first-stage male parent is lower than that of the second-stage male parent during seedling raising, and the method can overcome the defect that the conventional machine-transplanted hybrid rice is used for raisingThe phenomenon that seedlings stop growing at the later stage of seedling raising due to high density during seedling raising enlarges the difference between the male parents at the two stages, thereby realizing the effect that the male parents at the two stages elongate the whole flowering period of the male parents; secondly, the parent-female parent life breeding process is finely adjusted through different seedling ages of the parents to promote the male and female parents to have good flower chance, namely the number of days of the seedling age is set as X for the first-stage male parent, Y for the second-stage male parent and Z for the female parent, and the original seeding difference period P is the first-stage male parent seeding initial period-the female parent seeding initial period, then Y is X- (5-10), when P is more than or equal to 0, Z is X-P, when P is less than 0, Z is X-P/2, wherein P is less than or equal to 10, X is less than or equal to 30, and Z is less than or equal to 30; thirdly, the missed-detection rate female parent is obviously smaller than the second-stage male parent and smaller than the first-stage male parent, as the sowing density of the first-stage male parent is lower, missed-insertion is likely to be generated slightly during planting, if the first-stage male parent is continuously missed-inserted and smaller than 6 holes, and the second-stage male parent is continuously missed-inserted and smaller than 4 holes, seedling supplement is not needed, a small number of missed-insertion promotes the male parent in nearby holes to generate more primary and secondary effective tillering, and the requirement of the female parent for planting the male parent and leaning on the development of the male parent is met, so that the purposes of prolonging the flowering phase of the male parent and ensuring the sufficient pollen quantity of the overall male parent are achieved;
2. in the invention, the first-stage male parent missing transplanting is not generally supplemented, and meanwhile, the whole transplanting process is mechanized, so that a large amount of labor force is saved and the cost is saved;
3. in the invention, the seeding density of the female parent is obviously greater than that of the first-stage male parent and the second-stage male parent, and the number of potted seedlings after planting is also obviously different, so that the male parent rows and the female parent rows can be conveniently distinguished in the early stage of growth, and the operation of the male parent in the process of single secondary topdressing is facilitated;
4. the invention utilizes the conventional 30cm row spacing transplanter to carry out male and female parent simultaneous machine transplanting, so that the machine-transplanted hybrid rice seed production and the machine-transplanted cultivation of large-area production are mutually compatible, the utilization rate of the transplanter is improved, the convenience and the rapidness are realized, the use efficiency of the transplanter is higher, and the mechanical seed production benefit and the seed production enthusiasm of a large user are improved;
5. the method basically does not need manual additional planting in the planting stage, has high working efficiency, effectively saves time and labor and greatly reduces the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of the implementation steps and the implementation effect of the present invention;
FIG. 2 is a planting route diagram of a 6-row transplanter;
fig. 3 is an 8-row transplanter planting route diagram.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The preferred embodiment of the invention provides a method for producing hybrid rice seeds by transplanting male parents and female parents in the same organism and in the same organism, which comprises the following specific steps:
1) setting the parent row ratio: a6-row transplanter with row spacing of 30cm is adopted to set the row ratio of parents to be 2: 8.
2) Sowing the parents in a quantitative mode: according to the high-yield goal of seed production, 6.5 ten thousand of seed seedlings are set for each mu of basic seedlings of the female parent, and 0.9 ten thousand of seed seedlings are set for each mu of basic seedlings of the male parent; the seedling raising and seeding rate is based on the average unit areaCounting, wherein the seedling number of the male parent in the first period per unit area is 1.1 strain/cm2The seedling number of the male parent in the second period per unit area is 1.4 times that of the male parent in the first period, and the seedling number of the female parent in the unit area is 2.0 times that of the male parent in the first period;
the seeding amount per tray is (area of seedling tray x number of grown seedlings per unit area x thousand seed weight)/(1000 x germination rate x seedling rate); the original sowing difference period P is 3, the number of days of seedling age is 30 for the first male parent, 23 for the second male parent and 27 for the female parent.
3) Setting a transplanting route for male and female parents to be transplanted simultaneously: the route and partial effect are shown in figure 2, 1 row of male parents are respectively placed on the field-entering side A of the machine-ploughing channel in the first period and the second period, namely the male parents in the second period are placed on a rice transplanter close to ridges of a field, two rows of male parents are arranged, and the female parent seedlings are placed in the rest 4 rows; B. c, D a transplanter transplanting table width R is reserved for edge folding; all the seedling claws are opened from the edge D to the edge B, when the edge B reaches the edge D, two rows of male parent transplanting seedling claws are closed, the field is repeatedly transplanted in the above-mentioned way, and finally the edge is locked;
when planting and transplanting, the row spacing of the male parent and the female parent is 30cm multiplied by 12cm, the average hole seedling number of the female parent is 5.0 seedlings, the average hole seedling number of the first-stage male parent is 2 seedlings, and the average hole seedling number of the second-stage male parent is 3 seedlings.
Example 2
The preferred embodiment of the invention provides a method for producing hybrid rice seeds by transplanting male parents and female parents in the same organism and in the same organism, which comprises the following specific steps:
1) setting the parent row ratio: a30 cm row spacing 8-row transplanter is adopted to set the row ratio of parents to parent rows to be 4: 12.
2) Sowing the parents in a quantitative mode: according to the seed production high-yield target, 7 ten thousand of seed seedlings are set for each mu of basic seedlings of the female parent, and 1 ten thousand of seed seedlings are set for each mu of basic seedlings of the male parent; the seedling seeding rate is calculated according to the average seedling number per unit area, wherein the seedling number per unit area of the male parent in the first period is 1.2 plants/cm2The seedling number of the male parent in the second period per unit area is 1.5 times that of the male parent in the first period, and the seedling number of the female parent in the unit area is 2.3 times that of the male parent in the first period;
the seeding amount per tray is (area of seedling tray x number of grown seedlings per unit area x thousand seed weight)/(1000 x germination rate x seedling rate); the original sowing difference period P is-10, the number of days of seedling age is 25 for the first male parent, 20 for the second male parent and 30 for the female parent.
4) Setting a transplanting route for male and female parents to be transplanted simultaneously: the route and partial effect are shown in figure 3, 1 row of male parents are respectively placed on the field-entering side A of the machine-ploughing channel in the first period and the second period, namely the male parents in the second period are placed on a rice transplanter close to ridges of a field, two rows of male parents are arranged, and the female parent seedlings in the rest 6 rows are placed; B. c, D a transplanter transplanting table width R is reserved for edge folding; all seedling claws are fully opened from the edge D to the edge B, two rows near the edge A are used as male parents, when the edge B is to the edge D, all seedling claws are fully opened, two rows near the edge C are used as male parents, the field is repeatedly inserted, and finally the edge locking is carried out;
during planting and transplanting, the row spacing of the male parent and the female parent is 30cm multiplied by 14cm, the average hole seedling number of the female parent is 5.5 seedlings, the average hole seedling number of the first-stage male parent is 3 seedlings, and the average hole seedling number of the second-stage male parent is 4 seedlings.
Comparative example
The 8-row transplanter is demonstrated in a certain place in Sichuan, the method for planting the male parent while cutting the female parent compartment and finally planting the female parent to produce the seeds is carried out by using a conventional 30cm row spacing transplanter (in the method, after the male parent is planted, two ends of a field block respectively occupy one worker to measure the width of the female parent compartment and pull a line, and then the next compartment of the male parent can be planted by the transplanter), and the same transplanter is used for mechanical planting and seed production according to the method of the embodiment 2.
According to the comparative experiment, in the transplanting process, the method for producing seeds by transplanting the male parent and the female parent in the same machine and the same body has the advantages that two workers for drawing the trunk lead of the female parent are omitted, only one worker for transplanting the male parent and the female parent and one worker for transplanting seedlings on the rice transplanter are needed, and the labor is saved by half; from the aspects of efficiency and benefit, the technology of the invention has no process of cutting the female parent compartment, the whole field is directly planted, the mode is similar to the mode of planting the hybrid rice in a large area, the technology of the invention can be used for transplanting 0.89 hectare calculated according to 8 hours of work in one day, and the speed is 61.8 percent faster than that of the control. Compared with the comparison, the method saves 69% in unit area labor, and greatly saves cost investment. In conclusion, the method of the invention has the advantages of obvious time-saving and labor-saving effects and outstanding technical progress, and the ratio is shown in the following table 1.
TABLE 1 comparison of efficiency and benefit of different parents and parents' own machine transplanting seed production modes
Note: one worker is calculated according to 8 hours of work of each worker. The planting area per day is calculated according to 8 hours of work per day.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A method for producing seeds of hybrid rice by transplanting male and female parents in the same machine and in the same body is characterized by comprising the following steps:
s1, setting a parent row ratio: setting row ratios according to the transplanter of the 6-row machine and the 8-row machine with 30cm row spacing respectively;
s2, sowing the parents in a quantitative mode: 6-7 ten thousand seed seedlings are set for female parent per mu of basic seedlings, 0.9-1 ten thousand seed seedlings are set for male parent per mu of basic seedlings, wherein the number of grown seedlings per unit area of the male parent in one period is 1.0-1.2 plants/cm2The seedling number of the male parent in the second period per unit area is 1.3-1.5 times that of the male parent in the first period, and the seedling number of the female parent in the unit area is 1.7-2.5 times that of the male parent in the first period;
s3, transplanting the male parent and the female parent of the line simultaneously and mechanically: arranging a tractor-ploughing channel close to the ridge as an A side, wherein the opposite side of the tractor-ploughing channel is a C side, the first turning direction of the rice transplanter is a B side, and the opposite side of the tractor-ploughing channel is a D side; the male parent in the first period and the second period respectively places 1 row of seedling blocks, 2 rows of seedling blocks in total, the rest 4 rows or 6 rows of female seedling blocks, and B, C, D sides respectively reserve a transplanter platform width R for collecting the edges.
2. The method for producing hybrid rice seeds by transplanting male parents and female parents in one-body machine according to claim 1, wherein the parent row ratio of 6 lines in S1 is 2:8, and the parent row ratio of 8 lines in S1 is 4: 12.
3. The method for producing hybrid rice seeds by mechanical transplanting of parents and parents in the same body as a hybrid rice parent and a parent in the same body as a hybrid rice parent according to claim 1, wherein the seeding rate of the seedling raising in S2 is calculated according to the average number of seedlings formed per unit area: the seeding amount per tray is (area of seedling tray x number of grown seedlings per unit area x thousand seed weight)/(1000 x germination rate x seedling rate); the number of days of seedling age is set as X for the first-stage male parent, Y for the second-stage male parent, Z for the female parent, and the original sowing difference period P is the first-stage male parent sowing initial period-the female parent sowing initial period, then Y is X- (5-10), when P is more than or equal to 0, Z is X-P, when P is less than 0, Z is X-P/2, wherein P is less than or equal to 10, X is less than or equal to 30, and Z is less than or equal to 30.
4. The method for producing hybrid rice seeds by transplanting male parent and female parent in one-body machine according to claim 1, wherein in S3, when 6-row machine transplanting is used, all the seedling claws are fully opened from edge D to edge B, two rows near edge A are male parents, and when two rows of male parents are transplanted from edge B to edge D, the seedling claws are closed, and the process is repeated until the middle of the field is completely transplanted, and finally the edges are locked.
5. The method for producing hybrid rice seeds by homologous mechanical transplanting of male parent and female parent according to claim 1, wherein 8-row transplanting is used in S3, all the seedling claws are fully opened from side D to side B, two rows near side a are male parents, all the seedling claws are fully opened from side B to side D, two rows near side C are male parents, and the process is repeated until the field is completely transplanted and the edges are finally locked.
6. The method for producing hybrid rice seeds by homologous mechanical transplanting of male parent and female parent according to claim 1, wherein the row spacing of the male parent and female parent is 30cm x (12-14) cm when the hybrid rice is planted in S3.
7. The method for producing hybrid rice seeds by same-organism mechanical transplanting of male parent and female parent according to claim 6, wherein the average number of female parent seedlings in female parent is 4.5-5.5, the average number of male parent seedlings in first stage is 2-3, and the average number of male parent seedlings in second stage is 3-4.
8. The method for producing hybrid rice seeds by homologous machine-transplanting of male parent and female parent according to claim 1, wherein the continuous missed transplanting of the first-stage male parent is less than 6 holes, and the continuous missed transplanting of the second-stage male parent is less than 4 holes without seedling replanting.
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| CN112514723A (en) * | 2020-11-30 | 2021-03-19 | 广西水力机械研究所有限公司 | Computerized fruit tree row planting arrangement method |
| 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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| CN112514723A (en) * | 2020-11-30 | 2021-03-19 | 广西水力机械研究所有限公司 | Computerized fruit tree row planting arrangement method |
| 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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