A seed production method of high-efficiency high-yield hybrid rice

Abstract

The application discloses a high-efficiency and high-yield hybrid rice seed production method, and relates to the technical field of agricultural seed production. The method comprises the following steps: determining the row ratio of rope pulling and powder driving, the row spacing of a female parent, the row spacing of a male parent and the spacing between the male parent and the female parent of a hybrid rice combination to be produced according to the characteristics of the male parent and the female parent of the hybrid rice combination to be produced; then determining the row number and the width of the female parent zone; planting the male parent first according to the row spacing and the width of the male parent, and forming a male parent zone by alternately planting the male parent in single rows and double rows; then planting the female parent between the male parent zones, and forming a female parent zone according to the row spacing of the female parent, the spacing between the male parent and the female parent and the row number of the female parent zone; performing pollination on the female parent zone by means of rope pulling and powder driving during the flowering period; after the female parent matures, cutting part of the male parent and keeping the remaining part of the male parent to grow until maturity; harvesting the mature female parent, and then harvesting the mature male parent. The application optimizes the field layout by combining the characteristics of rope pulling and powder driving, guarantees the seed production yield, realizes mechanized operation, reduces the seed production cost and improves the seed production benefit.

Description

Technical Field

[0001] This application relates to the field of agricultural seed production technology, and in particular to a method for producing high-efficiency and high-yield hybrid rice seeds. Background Technology

[0002] Hybrid rice seed production involves planting two parent plants (male and female) of a hybrid rice variety in the same field (usually in alternating strips). During the flowering stage, the male plant pollinates the female plant, and the hybrid seeds from the female plant are harvested. Currently, there are two main field layout methods for hybrid rice seed production: one is the traditional small row ratio layout, often using a ratio of 1:(7-9) or 2:(12-16), where the male plant is planted in 1 or 2 rows, and the female plant is planted in 7-9 or 12-16 rows between the male plant strips; the other is the large row ratio layout, where the male plant is planted in 3-6 rows and the female plant in 18-30 rows.

[0003] Traditional narrow-row planting, with its narrower female parent strips, facilitates the reception of male parent pollen, resulting in higher seed setting rates and yields. Narrow strip planting also simplifies agricultural operations. However, narrow-row planting is not conducive to mechanized production. Firstly, the limited number of female parent strips within a single planting width restricts machine planting and harvesting. Secondly, the larger number of male parent strips necessitates the removal of immature male parents before machine harvesting, increasing labor costs and sacrificing the higher yield of male parent rice. Wide-row planting, on the other hand, is beneficial for machine planting and harvesting of female parents. However, the increased number of male and female parent strips and the longer center-to-center distance between them lead to greater pollination distances, often resulting in lower seed setting rates compared to narrow-row planting. To ensure pollination quality, large-row planting often compensates for this by reducing the proportion of female parents and increasing the proportion of male parents (e.g., a small-row ratio of 1:9 requires a large-row ratio of 3:18). However, this also reduces the number of harvestable female parents, affecting seed production yield. Therefore, to improve seed production efficiency while ensuring the yield and quality of hybrid rice seeds, this application proposes a high-efficiency and high-yield hybrid rice seed production method. Summary of the Invention

[0004] The main objective of this application is to provide a method for producing high-efficiency and high-yield hybrid rice seeds, aiming to solve the technical problem that existing seed production methods cannot improve mechanized production while ensuring seed yield and quality.

[0005] To achieve the above objectives, this application proposes a method for producing high-efficiency and high-yield hybrid rice seeds, comprising the following steps:

[0006] Based on the characteristics of the male and female parents of the hybrid rice combination to be produced, the row ratio, female parent row spacing, male parent row spacing, and parent-parent strip spacing of the hybrid rice combination to be produced are determined.

[0007] Based on the row ratio, determine the number of rows and width of the parent strip;

[0008] Based on the row spacing of the male parent, the row spacing of the female parent, the distance between the parent and female parent strips, the width, and the number of rows in the female parent strip, the male parent is first planted to form a male parent strip, and then the female parent is planted between the male parent strips to form a female parent strip;

[0009] During the flowering period, the parent plant strips were pollinated using a rope-pulling method.

[0010] After the maternal parent matures, part of the paternal parent is removed and the remaining part of the paternal parent is allowed to grow to maturity.

[0011] Harvest the mature female parent, and then harvest the mature male parent.

[0012] Optionally, the step of determining the number of rows and width of the parent strip based on the row ratio includes:

[0013] Based on the aforementioned row ratio, the formula for determining the number of rows in the parent section is as follows:

[0014] n = 3 / 2A

[0015] Where n represents the number of rows in the parent tissue, and A represents the row ratio;

[0016] The formula for determining the width is:

[0017] b = 2 × a × n + 2 × c + d

[0018] Wherein, b represents the width, a represents the row spacing of the maternal parent, c represents the spacing between the parental parent bands, and d represents the row spacing of the paternal parent.

[0019] Optionally, the spacing between the parental zodiacal bands is determined according to the following formula:

[0020] c≥hsinθ

[0021] Where h represents the plant height of the male parent at maturity, and θ represents the drooping angle of the ear at maturity.

[0022] Optionally, after determining the number of rows and width of the parent strip based on the row ratio, the method further includes:

[0023] Based on the shape of the field to be planted, the planting row direction of the male parent and the female parent is determined, and the planting row direction is parallel to the short side of the field to be planted.

[0024] Optionally, the step of planting the male parent to form a male parent band includes:

[0025] The parent plants are planted alternately in a pattern of 1 row and 2 rows, with a reserved strip between the 1 row and 2 rows.

[0026] Optionally, the step of planting the maternal parent between the paternal parent bands to form a maternal parent band includes:

[0027] The female parent is planted on the reserved strip, according to the number of rows, row spacing and parent strip spacing, to form the female parent strip.

[0028] Optionally, the step of pollinating the parent plant by pulling a rope during the flowering period includes:

[0029] After the male and female parents have flowered and tasseled, the male parent strip is moved back and forth with a rope to pollinate the female parent strip.

[0030] Optionally, the step of removing part of the male parent after the female parent matures and retaining the remaining part of the male parent to grow to maturity includes:

[0031] After the maternal parent matures, all the paternal parents in the first row of paternal parent strips and the paternal parents at the ends of the second row of paternal parent strips (one harvester width) are cut off, and the remaining paternal parents are allowed to grow to maturity.

[0032] Optionally, the step of harvesting the mature parent plant includes:

[0033] The mature parent plants are harvested continuously using a combine harvester.

[0034] Optionally, the step of harvesting the mature male parent includes:

[0035] The remaining parent plants are harvested manually or by combine harvesters.

[0036] This application addresses the problems of narrow planting strips for maternal parents in traditional small-row layouts, which are unfavorable for mechanized production, and long pollination distances in large-row layouts, which reduce the net planting area of ​​maternal parents and affect seed production. It optimizes existing field layouts by employing a rope-driven pollination method. Based on the characteristics of the male and female parents, the appropriate row ratio, row spacing for maternal parents, row spacing for male parents, and spacing between parental strips are determined, thereby determining the width and number of maternal strip rows. By alternating between one- and two-row male parent strips with interspersed female parent strips, the required amount of male parent pollen for rope-driven pollination is ensured, while the number of female parent rows is increased, thus increasing the proportion of net maternal parent planting area and improving yield. Furthermore, the advantages of the small-row layout in male parent pollination spacing are retained, which helps improve the seed setting rate of maternal parents. Mechanized harvesting of the entire maternal parent field can be achieved by removing only a portion of the male parents. Compared to traditional small-row layouts, the field arrangement method proposed in this application is more conducive to mechanized production, especially machine harvesting. It eliminates the need to cut or chemically kill all male parents after pollination, allowing for the harvesting of a significant portion of the higher-yielding male parent rice, thus increasing seed production. Compared to large-row layouts, this application's arrangement ensures sufficient pollination spacing between male parents, promoting female parent grain setting, and increases the net area of ​​female parents, resulting in a relatively larger number of harvestable female parents and thus improving yield. This application optimizes the field arrangement to accommodate the characteristics of rope-driven pollination, meeting the spacing requirements of male and female parents while enabling mechanized operation. It is not limited by terrain, field size, or the availability of drones and operators, facilitating agricultural operations. It is particularly suitable for the production realities of large hilly areas with concentrated seed production, thus improving overall seed production efficiency. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any creative effort.

[0038] Figure 1 This is a schematic diagram of the arrangement of the seed production method described in the embodiments of this application.

[0039] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] Currently, the traditional narrow-row planting pattern for female parents, while beneficial for pollination and resulting in higher seed setting and yield, and facilitating agricultural operations (manual weeding, fertilization, and pesticide application), hinders mechanized production. Even the most mature stage of harvesting is difficult to achieve by machine. This is because the primary goal of seed production is to harvest hybrid seeds from the female parent, and the incorporation of the male parent affects the purity of the hybrid. Therefore, it is necessary to remove or chemically kill the male parent after pollination and before the female parent matures, leaving only the female parent plants for mechanized harvesting. However, this method increases labor costs. However, this also results in the loss of income from the higher-yielding male parent rice. On the other hand, the large row ratio layout is conducive to machine transplanting and harvesting of the female parent. The pollination method uses drones to fly over the wider male parent strip to assist in pollination, which reduces labor costs and improves production efficiency. However, the increased number of rows in the male and female parent strips in the large row ratio layout leads to a longer center distance between the female and male parent strips, resulting in a larger pollination distance. The seed setting rate is often lower than that in the small row ratio layout. In order to ensure pollination quality, the large row ratio layout needs to further reduce the proportion of female parent rows, which leads to a reduction in the actual net planting area of ​​female parent and a corresponding reduction in the number of female parent plants that can be harvested, thus affecting the seed production yield.

[0042] Currently, rice seed production in my country is mainly concentrated in hilly areas. The terrain is conducive to isolating pollen from other varieties, ensuring purity. However, due to labor shortages and limitations imposed by field size and terrain, traditional methods such as manual pollination using bamboo poles (pressing the male parent against the female parent with bamboo poles and vibrating to achieve pollination) and drone pollination using large row ratios are difficult to implement. Therefore, rope pollination is commonly used in hilly areas. Due to the non-directional nature of pollination, rope pollination requires a larger amount of pollen from the male parent, often employing a small row ratio (1 or 2 rows of male parent). Compared to bamboo pole pollination, it also reduces the number of female parent rows, typically 1:(6-7) or 2:(11-12), failing to leverage the advantage of a larger net area for the female parent. Therefore, under current field conditions, rope pollination only reduces manpower in the pollination process but does not increase seed production and is not conducive to mechanized operations.

[0043] To address the technical problems existing in the prior art, embodiments of this application provide a method for producing high-efficiency and high-yield hybrid rice seeds, comprising the following steps:

[0044] Based on the characteristics of the male and female parents of the hybrid rice combination to be produced, the row ratio, female parent row spacing, male parent row spacing, and parent-parent strip spacing of the hybrid rice combination to be produced are determined.

[0045] Based on the row ratio, determine the number of rows and width of the parent strip;

[0046] Based on the row spacing of the male parent, the row spacing of the female parent, the distance between the parent and female parent strips, the width, and the number of rows in the female parent strip, the male parent is first planted to form a male parent strip, and then the female parent is planted between the male parent strips to form a female parent strip;

[0047] During the flowering period, the parent plant strips were pollinated using a rope-pulling method.

[0048] After the maternal parent matures, part of the paternal parent is removed and the remaining part of the paternal parent is allowed to grow to maturity.

[0049] Harvest the mature female parent, and then harvest the mature male parent.

[0050] This application addresses the issues of narrow planting strips for maternal parents in traditional small-row layouts, which hinder mechanized production, and long pollination distances in large-row layouts, which reduce the net planting area of ​​maternal parents and affect seed production. It optimizes existing field layouts by employing a rope-driven pollination method. Based on the characteristics of the male and female parents, it determines the appropriate row ratio, row spacing for maternal parents, row spacing for male parents, and spacing between parental strips. This ensures sufficient pollen from the male parent while increasing the number of maternal parent rows, thereby increasing the proportion of net planting area for maternal parents and improving yield. It also retains the advantages of the traditional small-row layout in terms of male parent pollination spacing, which helps improve the seed setting rate of maternal parents, while ensuring that the number and proportion of maternal parent rows can be mechanized. Compared with the traditional small-row layout, the seed production method of this application is more conducive to mechanized production, especially machine harvesting. It eliminates the need to cut or chemically kill all male parents after pollination, allowing for the additional harvesting of most of the higher-yielding male parent rice, thus increasing seed production output. Compared with the large-row layout, the layout of this application ensures the pollination spacing of the male parents, which is beneficial to the setting of the female parents, and the net area of ​​the female parents is not reduced, resulting in a relatively increased number of harvestable female parents, thereby increasing the yield of the female parents. Furthermore, the field layout is optimized to meet the requirements of the rope-driven pollination method, which can meet the spacing requirements of the male and female parents for rope-driven pollination, and can also realize mechanized operation. It is not limited by terrain, field size, or lack of drones and operators, which facilitates agricultural operations. It is especially suitable for the production realities of hilly areas and improves the overall efficiency of seed production.

[0051] As one possible implementation of this application, the step of determining the number of rows and width of the parent tape based on the row ratio includes:

[0052] Based on the aforementioned row ratio, the formula for determining the number of rows in the parent section is as follows:

[0053] n = 3 / 2A

[0054] Where n represents the number of rows of the parent plant, A represents the row ratio, the number of rows of the parent plant is calculated based on the row ratio suitable for pulling ropes to drive the powder, and the number of rows of the parent plant is 1.5 times the reciprocal of the row ratio;

[0055] The formula for determining the width is:

[0056] b = 2 × a × n + 2 × c + d

[0057] Wherein, b represents the width, a represents the row spacing of the maternal parent, c represents the spacing between the parental parent bands, and d represents the row spacing of the paternal parent.

[0058] like Figure 1 As shown, the width represents a complete planting unit, comprising two maternal parent strips and two paternal parent strips. The width distance b is determined by the number of maternal parent rows n, the maternal parent row spacing a, the parental parent strip spacing c, and the paternal parent row spacing d. The maternal parent row spacing a, the paternal parent row spacing d, and the parental parent strip spacing c are determined based on the characteristics of the seed-producing paternal and maternal parents. This application effectively increases the number of maternal parent rows under the rope-pulling pollination method, which is more conducive to increasing yield.

[0059] As one possible implementation method of this application, the distance between the parental zygomatic bands is determined according to the following relationship:

[0060] c≥hsinθ

[0061] Where h represents the plant height of the male parent at maturity, and θ represents the drooping angle of the ear at maturity.

[0062] Specifically, the spacing between the parent strips is the distance between the female strip and the two rows of male strips. The spacing between the parent strips is determined by the plant height and panicle drooping angle of the male parent at maturity. This ensures that the drooping panicles of the male parent do not cross and affect the female parent when the male parent matures, thus affecting the harvesting of the combine harvester and making it more conducive to mechanized operation. The spacing between the female strip and the one row of male strips has no special requirements and can also be equal to the row spacing 'a' of the female parent.

[0063] As one possible implementation of this application, after determining the number of rows and width of the parent tape based on the row ratio, the method further includes:

[0064] Based on the shape of the field to be planted, the planting row direction of the male parent and the female parent is determined, and the planting row direction is parallel to the short side of the field to be planted.

[0065] This application aims to improve pollination efficiency by ensuring that the planting row direction is parallel to the short side of the field to be planted. This reduces the resistance of the rope during subsequent pollination operations and facilitates pollination from the male parent to the female parent.

[0066] As one possible implementation of this application, the step of planting the male parent to form a male parent band includes:

[0067] The parent plants are planted alternately in a pattern of 1 row and 2 rows, with a reserved strip between the 1 row and 2 rows.

[0068] In the specific implementation process, since the male parent often has a longer growth period than the female parent, it is necessary to plant them first so that they can meet the flowering period of the female parent plant planted later, thereby achieving simultaneous flowering and pollination. However, due to the non-directional nature of pollination, the rope-pulling pollination method requires a large amount of pollen from the male parent. Therefore, this application adopts a method of alternating planting of one row and two rows of male parent strips to make full use of the pollen from the two rows of male parent strips and combine it with the back-and-forth rope-pulling pollination to improve the pollination and fruit setting rate.

[0069] As one possible implementation of this application, the step of planting the maternal parent between the paternal parent bands to form a maternal parent band includes:

[0070] The female parent is planted on the reserved strip, according to the number of rows, row spacing and parent strip spacing, to form the female parent strip.

[0071] As one possible implementation of this application, the step of pollinating the parent plant by pulling a rope during the flowering period includes:

[0072] After the male and female parents have flowered and tasseled, the male parent strip is moved back and forth to drive the pollen back and forth, so that the female parent strip is pollinated.

[0073] By pulling a rope back and forth to drive the pollen from the male parent strip, the pollen from the male parent strip can be fully transferred to the female parent strips on both sides. Compared with driving pollen with bamboo poles, it can reduce manpower in the pollination process; compared with drone pollination, it is not limited by field plots or terrain.

[0074] As one possible implementation of this application, the step of removing part of the male parent after the female parent matures and retaining the remaining part of the male parent to grow to maturity includes:

[0075] After the maternal parent matures, all the paternal parents in the first row of paternal parent strips and the paternal parents at the ends of the second row of paternal parent strips (one harvester width) are cut off, and the remaining paternal parents are allowed to grow to maturity.

[0076] Since the main purpose of seed production is to harvest hybrid seeds from the female parent, and the number of rows in the female parent is greater than that of the male parent, the mixing of male parents during the harvesting of the female parent can affect the purity of the hybrid. Therefore, male parents are often removed before maturity, resulting in a loss of male parent yield and significant waste. The arrangement in this application only requires the removal of all male parents in one row of male parent strips and the removal of the male parents at the ends of two rows of male parent strips that are one harvester width, which facilitates the harvester's access to the female parent strip for mechanized operation.

[0077] As an implementable embodiment of the present application, the step of harvesting the mature female parent includes:

[0078] Continuously harvesting the mature female parent with a harvester.

[0079] In the specific implementation process, the harvester enters the field from the empty position at the end of the 2 rows of male parent belts. After harvesting 2 female parent belts at once, it then enters the next 2 female parent belts from the position left at the end of the 2 rows of male parent belts, thus achieving continuous whole-field harvesting, improving the mechanical harvesting efficiency, and being more conducive to mechanized operation.

[0080] As an implementable embodiment of the present application, the step of harvesting the mature male parent includes:

[0081] Harvesting the remaining part of the male parent that is retained by manual labor or a harvester.

[0082] In the specific implementation process, the remaining 2 rows of male parent belts are rice with higher yields (longer growth periods and more plump seeds). By manual or mechanical harvesting, compared with the method of cutting off the male parent, most of the male parent rice can be additionally harvested, thereby increasing the seed production output and improving the seed production benefit.

[0083] The above technical solutions of the present application will be described in detail below with specific embodiments.

[0084] Embodiment 1

[0085] A method for hybrid rice seed production with high efficiency and high yield includes the following steps:

[0086] Determine the hybrid rice combination to be used for seed production as: female parent "Pinxiang A" and male parent "Tongzhen";

[0087] According to the characteristics of the female parent "Pinxiang A" and the male parent "Tongzhen", determine that the suitable row ratio for rope pulling and pollen scattering for this combination is 1:7, the row spacing of the female parent is 20 cm, and the row spacing of the male parent is 30 cm;

[0088] The distance between the female and male parent belts is determined according to the following relational expression:

[0089] c≥hsinθ

[0090] As Figure 1 shown, where c represents the distance between the female and male parent belts, h represents the plant height at the maturity stage of the male parent (the plant height of "Tongzhen" at maturity is 130 cm), and θ represents the ear drooping angle of the male parent at maturity (the ear drooping angle of "Tongzhen" is 18°);

[0091] Therefore, determine the distance between the female and male parent belts to be 40 cm;​​​​​n = 3 / 2, A = 10.5

[0094] Among them, n represents the number of rows of the female parent tape, and A represents the row ratio;

[0095] Therefore, it is determined that the female parent tapes are 10 rows and 11 rows (2 female parent tapes within one width);

[0096] The relational expression for determining the width is:

[0097] b = 2×a×n + 2×c + d

[0098] As shown in Figure 1, among them, b represents the width, a represents the row spacing of the female parent, and d represents the row spacing of the male parent;

[0099] That is, the width is:

[0100] b = 2×20×10.5 + 2×40 + 30 = 530 cm

[0101] According to the shape of the field to be planted, determine the planting row directions of the male parent and the female parent, and the planting row directions are parallel to the short side of the field to be planted;

[0102] First, plant "Tongzhen" alternately in the way of 1-row male parent tape and 2-row male parent tape ("Tongzhen" is sown on March 22 and transplanted on May 14), and set a reserved belt between the 1-row male parent tape and the 2-row male parent tape, and then plant the female parent ("Pinxiang A" is sown on May 3 and transplanted on May 23) on the reserved belt to form a female parent tape. The distance between the female parent tape and the 2-row male parent tape is 40 cm;

[0103] After "Tongzhen" and "Pinxiang A" are in heading and flowering, use the rope-pulling method to drive pollen back and forth on the male parent tape to pollinate the female parent tape;

[0104] After "Pinxiang A" matures, cut off the male parent of all 1-row male parent tapes and the male parent at one end of the 2-row male parent tape with a width of one harvester (220 cm). Select the Ward 4LZ-8.0EZ(Q) model for the harvester, and keep the remaining male parent growing until it matures;

[0105] The harvester cuts into the field horizontally from the end position of the pre-cut 2-row male parent tape, harvests 2 female parent tapes at a time (the working width is about 420 cm), and then enters the next 2 female parent tapes to achieve continuous harvesting;

[0106] After the male parent is fully ripe, machine-harvest the remaining male parent rice.

[0107] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A method for producing high-efficiency, high-yield hybrid rice seeds, characterized in that, Includes the following steps: Based on the characteristics of the male and female parents of the hybrid rice combination to be produced, the row ratio, female parent row spacing, male parent row spacing, and parent-parent strip spacing of the hybrid rice combination to be produced are determined. Based on the row ratio, determine the number of rows and width of the parent strip; Based on the row spacing of the male parent, the row spacing of the female parent, the distance between the parent and female parent strips, the width, and the number of rows in the female parent strip, the male parent is first planted to form a male parent strip, and then the female parent is planted between the male parent strips to form a female parent strip; During the flowering period, the parent plant strips were pollinated using a rope-pulling method. After the maternal parent matures, part of the paternal parent is removed and the remaining part of the paternal parent is allowed to grow to maturity. Harvest the mature female parent, then harvest the mature male parent; The step of determining the number of rows and width of the parent strip based on the row ratio includes: Based on the aforementioned row ratio, the formula for determining the number of rows in the parent section is as follows: n=3 / 2A Where n represents the number of rows in the parent tissue, and A represents the row ratio; The formula for determining the width is: b=2 a n+2 c+d Wherein, b represents the width, a represents the row spacing of the maternal parent, c represents the spacing between the parental parent bands, and d represents the row spacing of the paternal parent; The distance between the parental zodiacal bands is determined according to the following formula: c≥h Where h represents the plant height of the male parent at maturity. This indicates the drooping angle of the spike at the maturity stage of the male parent; The step of planting the male parent to form a male parent band includes: The parent plants are planted alternately in a pattern of 1 row and 2 rows, with a reserved strip between the 1 row and 2 rows. The step of planting the maternal parent between the paternal parent bands to form a maternal parent band includes: Plant the female parent in the reserved strip, according to the number of rows, row spacing and parent-parent strip spacing, to form the female parent strip; After the maternal parent matures, the step of removing part of the paternal parent and retaining the remaining part of the paternal parent to grow to maturity includes: After the maternal parent matures, all the paternal parents in the first row of paternal parent strips and the paternal parents at the ends of the second row of paternal parent strips (one harvester width) are cut off, and the remaining paternal parents are allowed to grow to maturity. The step of harvesting the mature parent plant includes: The mature parent plants are harvested continuously using a combine harvester; The steps for harvesting the mature male parent include: The remaining parent plants are harvested manually or by combine harvesters.

2. The method for producing high-efficiency and high-yield hybrid rice seeds according to claim 1, characterized in that, After determining the number of rows and width of the parent strip based on the row ratio, the method further includes: Based on the shape of the field to be planted, the planting row direction of the male parent and the female parent is determined, and the planting row direction is parallel to the short side of the field to be planted.

3. The method for producing high-efficiency and high-yield hybrid rice seeds according to claim 1, characterized in that, The step of pollinating the mother plant strip by pulling a rope to drive the pollen during the flowering period includes: After the male and female parents have flowered and tasseled, the male parent strip is moved back and forth with a rope to pollinate the female parent strip.

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