CN105230414A - Mixed planting method for hybrid rice and paternal hybrid rice - Google Patents
Mixed planting method for hybrid rice and paternal hybrid rice Download PDFInfo
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- CN105230414A CN105230414A CN201510713103.7A CN201510713103A CN105230414A CN 105230414 A CN105230414 A CN 105230414A CN 201510713103 A CN201510713103 A CN 201510713103A CN 105230414 A CN105230414 A CN 105230414A
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- rice
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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Abstract
Provided is a mixed planting method for hybrid rice and paternal hybrid rice. The method is characterized in that hybrid rice and seeds of paternal hybrid rice matching hybrid rice are interbred based on the weight ratio of 2 to 1. Hybrid rice seeds used for interbreeding differ from paternal seeds in seed length for less than 0.5mm, in seed width for less than 0.3 mm, in growth period for less than 3 days, and in plant height for less than 10 cm. During separate planting, hybrid rice differs from paternal seeds in yield for less than 10%. The mixed planting mode provided by the mixed planting method for hybrid rice and paternal hybrid rice has following beneficial effects: a conventional seed production method for hybrid rice is changed so that the mixed planting mode is advantageous to produce mechanically, significantly increase planting benefit of hybrid rice; and accordingly a broader market application prospect is obtained.
Description
Technical field
The present invention relates to hybrid rice production field, be specifically related to a kind of method of hybrid rice and its male parent mixed planting.
Background technology
Paddy rice is world's staple food crop, China's rice growing area about 3,000 ten thousand hm
2, wherein hybrid rice Annual planting area is about 1,670 ten thousand hm
2, account for 57% of Monitoring of Paddy Rice Plant Area, in recent years, the cultivated area of conventional Rice was on the rise, cause the main reason of this phenomenon be plantation hybrid rice seed costs higher.
The hybrid rice production of hybrid seeds, employing be male parent and maternal according to certain row than alternate plantation, this is unfavorable for mechanization production.And hybrid rice seeds is produced, the numerous and diverse and high labour intensity of its production of hybrid seeds process becomes the restraining factors reducing breeding cost just gradually.In order to adapt to the growth requirement of modern agriculture, reduce the cost of breeding of hybrid rice, the mechanization production of hybrid seeds of hybrid rice is imperative.Existing research is in the production of hybrid seeds of mixed seeding mixed receipts, propose and utilize the different male parents of color and the laggard circumstances in which people get things ready for a trip choosing of the mixed receipts of maternal mixed seeding, the male parent utilizing grain type to vary in size and the laggard row filter of the mixed receipts of maternal mixed seeding, utilize the male parent mixed planting production of hybrid seeds that Transgenic Resistant Herbicide is maternal and responsive to weed killer herbicide reaction, but all there is weak point in various degree in these methods, commercially produce country as transgenic paddy rice not yet to ratify, utilize look choosing and the grain type screening technique intermingle production of hybrid seeds to still have certain gap apart from Commercial cultivation at present.The present invention proposes the method by hybrid rice and its male parent mixed planting, can realize hybrid rice male parent and the maternal Mixed Planting Method production of hybrid seeds, greatly reduces hybrid rice seed production cost, improves hybrid rice plantation effect.
Summary of the invention
Technical problem to be solved by this invention is: for the problem of kind of the high cost of hybrid rice plantation under the light simplification existed in above-mentioned prior art, mechanization and large-scale production mode; and a kind of method of hybrid rice and its male parent mixed planting is provided; by this mixed planting pattern; save sowing quantity and labor cost, be conducive to mechanization production, hybrid rice planting benefit can be significantly improved, there is market application foreground widely.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of method of hybrid rice and its male parent mixed planting, is characterized in, described method is by hybrid rice seed and its male parent seed 2:1 miscegenation by weight; Wherein, for miscegenation hybrid rice seed and male parent seed grain appearance difference < 0.5mm, grain is wide differs < 0.3mm, differ < breeding time 3 days, plant height difference < 10cm, when hybrid rice is planted separately with male parent, output differs < 10%.
Rice whiteness measuring≤5.0% of the above-mentioned male parent for miscegenation, amylose content are 15.0-24.0%, gel consistence >=50mm, gelatinization point are 70-75 DEG C, and preferably the quality trait of hybrid rice and male parent is complementary.
Above-mentioned miscegenation is machine transplanting of rice miscegenation or live miscegenation.During machine transplanting of rice miscegenation, semilate rice crossbreed F
1with its male parent every mu land for growing field crops kind of 2kg, a crossbreed F for early rice and double cropping late rice
1with its male parent every mu kind of 3kg.During live miscegenation, semilate rice crossbreed F
1with its male parent every mu land for growing field crops kind of 1.5kg, an early rice crossbreed F
1with its male parent every mu kind of 3kg, double cropping late rice crossbreed F
1with its male parent every mu kind of 2.5kg.During practical operation, sowing quantity can according to the size of seed and the strong and weak suitably adjustment of kind tillering ability.
Field management during above-mentioned miscegenation, sowing, seed are received the technical measures such as solarization and be can refer to the live or machine transplanting of rice usual manner of hybrid rice and carry out.
The present invention adopts male parent and hybrid rice mixing is live or the mixed planting method of transplanting, output is suitable with hybrid rice, but be not only with the addition of male parent plantation owing to adopting this cropping pattern, and the hybrid rice Parent mixed seeding mechanization production of hybrid seeds can be taked, modifiedly go the hybrid rice production of hybrid seeds Parent cumbersome approaches that separately sowing is planted, Parent gathers in respectively, greatly reduce seed produces and with a kind cost.Especially along with the raising of China's labor cost, the light simple cultivation mode such as rice direct-seeding and the machine transplanting of rice will become main flow, this provides for improved sowing quantity, and hybrid rice and male parent miscegenation pattern can significantly improve the farming benefit of peasant and plant rice enthusiasm.
Mixed planting method of the present invention changes traditional paddy rice planting method; both decreased labour to drop into, greatly reduce hybrid rice kind of cost; hybrid rice plantation high and stable yields can be ensured again; be conducive to the scale of Rice Production, mechanization and intensive manufacture, promote the sustainable development of Chinese hybrid rice seed industry.The inventive method can solve China's day by day in short supply, Rice Production of agricultural labour and there is the large problem of sowing quantity, can be widely used in hybrid rice and produce.
Embodiment
1. materials and methods
Test material: hybrid rice is two excellent 312, and male parent is R312, provides by rice science research institute of Agricultural University Of Hunan.
Test method
When and where: the 6-10 month in 2014, be experimental field positioned at tea-booth town, Changsha Wangcheng County, experimental field topsoil is deep, Land leveling, sunny, and soil fertility is even, the better-than-average level of fertility, and irrigation and drainage are convenient.
Field trial scheme: after land for growing field crops is smooth, selects three experimental plots, and each plot area is 32m
2.Excellent 312 direct sowing cultures in one of them community two, a community is pressed the live miscegenation of 2:1 by two excellent 312 and R312 and is cultivated (hereinafter referred to as mixed 312), a community R312 direct sowing culture.Seed strong chlorine oil is soaked seed, and makes good use of the seed dressing of peace prestige, quantitatively evenly to broadcast.On June 15th, 2014, sowing quantity was every mu of 2kg in the sowing of Wangcheng, Changsha.Fertilizer application norm: live front 2-3 days sealing fertilizer 30kg/667m
2, superphosphate 50kg/667m
2; Three leaf one heart stages, in conjunction with herbicides for use in paddy, imposed tillering fertilizer, executed urea 18kg for every mu; Booting stage potassium application 15kg, urea 10kg.Field management is with conventional field production.
Mensuration project and method: test in each community random sampling in field on October 6, adopt 3 point samplings, often some 1m
2, obtain effective panicles per unit area, unified species test in each sample room, examination sample plant height, spike length, every total grain panicle number, ripening rate, thousand kernel weight, calculate theoretical output.Paddy rice full ripening stage, point community is again singly received single solarization and is counted actual production.
Rice harvest, dry after, indoor storage is after 3 months, and Stochastic choice 3 parts respectively from each sample, carries out the analysis of rice correlation merit proterties.Every index of quality counterpoise of each community sample determination 3 times, using its mean as the measured value of this community." rice matter assay method " standard (NY147-88) that rice correlation merit property determination method is promulgated by The Ministry of Agriculture of the People's Republic of China, MOA measures the indices such as the Coarse Rice Rate of rice, polished rice rate, head rice rate, chalky grain rate, chalkiness degree, caustic SCC, aspect ratio, gel consistence, protein content, direct-connected content of starch, grain of rice percentage elongation and food flavor comprehensive grading.
In the whole process of test, record the input on seed costs of each experimental plot, and binding isotherm output and actual production, compare the difference in three community benefits.
2. results and analysis
2.1 liang of excellent 312, mixed 312, R312 Grain Quality Traits in Rices are analyzed
As shown in Table 1, the Coarse Rice Rate of R312 is the highest, is 72.4%.Two excellent 312 is little with the Coarse Rice Rate difference of mixed 312, is respectively 71.36%, 71.18%.The polished rice rate of R312 is the highest, is 65.15%, and two excellent 312 are respectively 62.94% and 63.57% with the polished rice rate of mixing 312, and difference is little.The head rice rate of two excellent 312 is the highest, is 57.3%, reaches GB one-level; Secondly be mixed 312 and R312, be divided into 56.1% and 55.3%, reach GB secondary.With regard to chalky grain rate, two is excellent 312 the highest, is 28%, being secondly mixed 312 and R312, for not being 25% and 24%, all reaching GB three grades.Secondly the chalkiness degree of two excellent 312 is the highest, is 4.2%, and be mixed 312, minimum be R312, is 3.3, reaches GB three grades, and two aspect ratios that are excellent 312, R312 and mixed 312 are respectively 3.2,3.1 and 3.1, and difference not quite, all reaches GB one-level; R312DE amylose content is the highest, is 16.55%, reaches GB secondary, is secondly two excellent 312 and mixed 312, is respectively 15.3% and 15.1%, reaches GB three grades.Caustic SCC three is respectively 6.05%, 5.15%, 5.12%.With regard to gel consistence, two is excellent 312 the highest, and mixed 312 take second place, and the poorest is R312, is respectively 86.1mm, 84.5mm and 83.7mm, all reaches GB one-level.Protein content, two excellent 312 the highest, be secondly 10.8%, be R312, is 9.91%, secondarily for mixing 312, is 9.46%.Food flavor overall merit, R312 is the highest, is 8.2, reaches GB secondary, and mixed 312 is 8.14, and reach GB secondary, two excellent 312 is 7.85, reaches GB three grades.Grain of rice percentage elongation is the highest by mixed 312, be 135.1%, two excellent 312 be 114.2, R312 is 116.1.
As can be seen here, mixed 312 overall rice qualities are better, have good boiling food flavor product, milled quality and exterior quality, and nutritional quality performance is general; R312 has good milled quality and exterior quality, and boiling food flavor product and nutritional quality performance are generally; Two excellent 312 have better nutritional quality and milled quality, and exterior quality and the performance of boiling food flavor product are generally.
The comparison of table 1 each sample Grain Quality Traits in Rice
2.2 liang excellent 312, mixed 312 and the Efficiency Comparison of R312 on producing
For the error-reduction between each community to minimum, this controlling test carries out under substantially identical field management condition.Take R312 as reference object, three experimental plots show (table 2) at seed costs and benefit comparison result, R312, mixing 312, two excellent 312 seed prices respectively by 16 yuan/kg, 60 yuan/kg, 100 yuan/kg, paddy price is by 2.8 yuan/kg.Can calculate thus, in the benefit difference only caused at seed costs and output two factors, two excellent 312 to cultivate with R312 intermingle and cultivate separately on average every mu of reducible produce more benefit 133 yuan and 98 yuan respectively than R312 and two excellent 312, and economic benefit increases income very remarkable.
Table 2 liang excellent 312 is with R312 intermingle cultivation and two excellent 312 and R312 direct sowing culture cost and Efficiency Comparison
Above-mentioned analysis shows, rice matter, better, therefore, two excellent 312 have good application prospect with R312 mixed planting pattern for the quality more excellent than two 312 of rice of mixed 312 and the quality of the rice of R312.And; two excellent 312 have the feasibility of carrying out mixed planting with R312; take the method for hybrid rice and male parent mixed planting; just can utilize the seed that restorer (male parent) and male sterile line Mixed plant are produced; not only can reduce the production cost of hybrid rice seeds, and the mechanical scale production of hybrid seeds can be realized.
Claims (6)
1. a method for hybrid rice and its male parent mixed planting, is characterized in that, described method is by hybrid rice seed and its male parent seed 2:1 miscegenation by weight; Wherein, for miscegenation hybrid rice seed and male parent seed grain appearance difference < 0.5mm, grain is wide differs < 0.3mm, differ < breeding time 3 days, plant height difference < 10cm, when hybrid rice is planted separately with male parent, output differs < 10%.
2. the method for a kind of hybrid rice as claimed in claim 1 and its male parent mixed planting, it is characterized in that, rice whiteness measuring≤5.0% of the described male parent for miscegenation, amylose content are 15.0-24.0%, gel consistence >=50mm, gelatinization point be 70-75 DEG C.
3. the method for a kind of hybrid rice as claimed in claim 2 and its male parent mixed planting, is characterized in that, the quality trait of the described hybrid rice for miscegenation and male parent is complementary.
4. a kind of hybrid rice according to any one of claim 1-3 and the method for its male parent mixed planting, is characterized in that, described miscegenation is machine transplanting of rice miscegenation or live miscegenation.
5. the method for a kind of hybrid rice as claimed in claim 4 and its male parent mixed planting, is characterized in that, during described machine transplanting of rice miscegenation, and semilate rice crossbreed F
1with its male parent every mu land for growing field crops kind of 2kg, early rice and double cropping late rice every mu kind of a 3kg.
6. the method for a kind of hybrid rice as claimed in claim 4 and its male parent mixed planting, is characterized in that, during described live miscegenation, and semilate rice crossbreed F
1with its male parent every mu land for growing field crops kind of 1.5kg, every mu, early rice kind of a 3kg, double cropping late rice every mu kind of a 2.5kg.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263701A (en) * | 1999-01-27 | 2000-08-23 | 黄大年 | Breeding method for hybridized rice |
| WO2001067847A1 (en) * | 2000-03-10 | 2001-09-20 | Syngenta Participations Ag | Method for increasing the yield of grain biomass per area |
| CN1463586A (en) * | 2002-06-11 | 2003-12-31 | 重庆市种子公司 | Mechanicalized seeding method of 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 |
| CN103493726A (en) * | 2013-10-21 | 2014-01-08 | 安徽省农业科学院水稻研究所 | Method for mechanized seed production of hybrid rice through integration of seedling slinging technology and direct seeding technology |
-
2015
- 2015-10-28 CN CN201510713103.7A patent/CN105230414A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263701A (en) * | 1999-01-27 | 2000-08-23 | 黄大年 | Breeding method for hybridized rice |
| WO2001067847A1 (en) * | 2000-03-10 | 2001-09-20 | Syngenta Participations Ag | Method for increasing the yield of grain biomass per area |
| CN1463586A (en) * | 2002-06-11 | 2003-12-31 | 重庆市种子公司 | Mechanicalized seeding method of 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 |
| CN103493726A (en) * | 2013-10-21 | 2014-01-08 | 安徽省农业科学院水稻研究所 | Method for mechanized seed production of hybrid rice through integration of seedling slinging technology and direct seeding technology |
Non-Patent Citations (1)
| Title |
|---|
| 袁烨: "杂交水稻混合制种及栽培技术", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
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Application publication date: 20160113 |
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