CN102144514A - Method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate - Google Patents
Method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate Download PDFInfo
- Publication number
- CN102144514A CN102144514A CN2011100036086A CN201110003608A CN102144514A CN 102144514 A CN102144514 A CN 102144514A CN 2011100036086 A CN2011100036086 A CN 2011100036086A CN 201110003608 A CN201110003608 A CN 201110003608A CN 102144514 A CN102144514 A CN 102144514A
- Authority
- CN
- China
- Prior art keywords
- seed
- rice
- father
- mother
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate, which mainly comprises the following steps of: (1) selecting a proper seed production base; (2) selecting a high-purity sterile line to be used as a female parent for seed production; (3) selecting a proper sowing period and seedling transplanting period; (4) reasonably accelerating germination, and cultivating and strengthening seedlings: uniformly and thoroughly airing seeds before sowing, soaking the aired seeds in an agent, and sowing the seeds when the germination rate reaches about 60%; (5) choosing proper density and line ratio to ensure sufficient number of productive ear for the female parent; (7) applying effective flowering phase and flowering time adjustment technologies mainly including a fertilizer adjustment method and a gibberellic acid adjustment method; (8) enlarging the ear height difference between the male parent and the female parent by using gibberellic acid; (9) carrying out artificial supplementary pollination; and (10) effectively controlling pests and weeds, harvesting the rice at the right time, and carrying out fine processing to ensure that seeds with high purity and high germination rate are obtained.
Description
Technical field
The invention belongs to technical field of seed breeding, particularly triple crossing japonica rice technical field of seed breeding.
Background technology
China has 4.5 hundred million mu of rice areas at present approximately, about 1.3 hundred million mu of its intermediate keng rices.Conventional japonica rice and Japonica Hybrid are that present japonica rice produces last two big principal item types, and wherein conventional japonica rice accounts for about 96% of the japonica rice gross area, and Japonica Hybrid only accounts for 4% of the japonica rice gross area.The relative conventional japonica rice height of Japonica Hybrid seed price is one of principal element of restriction Japonica Hybrid demonstration popularization.Causing the higher reason of Japonica Hybrid seed price mainly is Japonica Hybrid seeding technique imperfection, show hybrid seed yield on the low side and annual between the hybrid seed yield instability.Further study and improve the Japonica Hybrid seeding technique, especially innovate this prediction of flowering period of father and mother technology, florescence regulation technology, GA operation technique, rich water operational research technique, artificial supplementary pollination technology, realization production of hybrid seeds high and stable yields, reduce Japonica Hybrid seed production cost, strengthening the Japonica Hybrid market competitiveness is the major technique approach that promotes Japonica Hybrid production of hybrid seeds area.
Chinese patent CN88108744.0 discloses " practical technique of preparing hybridized rice seeds for increasing yield ", and the step of this method is: 1. utilize the pollen harvester to carry out the pollen collection at the male parent full-bloom stage; 2. the pollen that collects is stored in-15 ℃ of-10 ℃ of scopes, humidity is controlled at below 70%, stores 10-30 days; 3. the pollen that stores is taken out and place under the normal temperature, return and woke up 6-12 hour, every mu each adds water 10-20 kilogram with more than pollen 6 grams, sprays pollen liquid 2-5 time every day at maternal full-bloom stage after adding adjuvant, sprays 2-3 time after 12 hours again.
This method operation is easier, but the pollen vigor germination rate under the cultured in vitro state that stores only has 40%, spray in addition at every turn and need convert water and guarantee the uniformity, cause the insemination ability of pollen further to descend, be difficult to guarantee enough pollen consumptions with liquid condition.
Chinese patent CN92106819.0 discloses " method of breeding of hybrid rice super high-yielding ", and the step of this method is: determine that 1. maternal Zao 2 days was desirable seed production florescence than male parent; 2. change plant forms, get rid of the pollination obstacle in many ways; 3. improve maternal stigma exposing ratio; 4. accurately predict male parent loose powder peak period and in time tissue manually catch up with powder; 5. taking to carry out with the sheet is that unit unifies presoaking and germinating, and the sowing of budding paddy realizes large tracts of land seed production florescence unanimity.
This method is mainly used in the hybridization long-grained nonglutinous rice, wherein 1. step changes in the japonica rice part omitted, it is bigger that 2. step implements difficulty, and the 3. current most round-grained rice types three of step are that stigma exposing ratio of sterile line is all very low, and stigma exposing ratio is difficult to improve by outside measure as genetic character.
Chinese patent CN95118951.4 discloses " regulating agent for florescence of paddy rice cross-breeding ", has developed a kind of regulating agent for florescence of paddy rice cross-breeding.This method is mainly used in the hybridization long-grained nonglutinous rice production of hybrid seeds, at japonica rice sterile line with to recover be the regulating effect not research of florescence on during flower.
Chinese patent CN200910228819.2 discloses " method for producing seeds of japonica hybrid rice ", mainly be to be that R1415 studies at japonica rice sterile line 17A and recovery, technology such as this date of seeding of father and mother of mentioning in this method, row compare do not possess generality, and its implementation result remains further to be verified.
Summary of the invention
The objective of the invention is to overcome the prior art defective, a kind of high bud rate of high and stable yields high-purity producing method for seed that generally is applicable to triple crossing japonica rice is provided.
The object of the present invention is achieved like this: the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity, it is characterized in that, and mainly may further comprise the steps: 1. select suitable production of hybrid seeds base; 2. use the high-purity male sterile line as maternal breeding; 3. sowing time and transplanting date suit: 4. vernalization rationally, cultivate strong seedling: sow preceding 2-3 days with Japonica Hybrid seed airing 3-4 hour, often stir in the airing process, make seed shine even the solarization thoroughly.Shine medicament seed soaking such as the back seed is clever with soaking seed, the bacterium worm is clear, seed soaking time 5-7 days, seed was fully cleaned with clear water in the seed soaking back, was placed on suitable local vernalization about 1 day, sowed about emitting the bud rate to reach 60%; 5. Suitable Density and row compare: guarantee enough maternal number of productive ears.Maternal rice transplanting specification is 6 * 4 cun, and male parent rice transplanting specification is 9 * 4 cun; It is comparatively suitable that father and mother's one's own profession ratio is arranged in 2: 8; 6. effective prediction of flowering period technology: prediction of flowering period combines by arranging the stripping of auxiliary date of seeding and young fringe to look into; Regulation technology when 7. effectively the florescence is with flower: the florescence result according to the 6th step prediction carries out effective florescence adjusting, mainly contains fertilizer and regulates method and GA adjusting method; 8. it is poor to widen this height of stachys position of father and mother with GA; 9. artificial supplementary pollination; 10. effectively disease pest and weed control;
In good time results, the science airing, retrofit guarantees to obtain the seed of the high bud ratio of high-purity.
The present invention compares with existing seeding technique, utilizes the high-purity male sterile line as maternal breeding, realizes production of hybrid seeds high-purity.Reasonably arrange density and row ratio, by effective this prediction of flowering period of father and mother and Predicting Technique early, guaranteed father and mother this flower synchronization, accomplish " beginning Hua Bukong contains flower and meets, and the decorative pattern at the end of a poem, article, etc. where there is a small blank space is not lost ".By artificial supplementary pollination, realize the stable yields and the high yield (output reaches every mu more than 230 kilograms) of the Japonica Hybrid production of hybrid seeds.By real-time results, retrofit, science airing and the high bud ratio of seed (bud ratio reaches more than 95%) of vernalization supervisor realization rationally.
Embodiment
Below the present invention is described further: the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity mainly may further comprise the steps: 1. select suitable production of hybrid seeds base, the construction section management system of emulating the advanced.Production of hybrid seeds base should select physical features smooth, soil is in flakes arranged easily in filling, the isolation distance that production of hybrid seeds base must have more than 500 meters promptly should not have other rice varieties in 500 meters scopes except that male parent, should guarantee sufficient water source (especially noting in Efficiency in Buildings in Tianjin Area) in addition.Production of hybrid seeds base not only requires to have facilities such as supporting storage, threshing ground, also will take science advanced management system to guarantee that the base normally moves.2. use the high-purity parent: use the high-purity male sterile line as maternal breeding.3. suitable sowing time and transplanting date: proper seeding comprises the two aspects meaning, and the one, guarantee this florescence of father and mother in suitable season, the north mainly is arranged in late July to mid-August.The 2nd, guarantee this flower synchronization of father and mother.We discover that father and mother are decided by also to be decided by transplanting date sowing time on the one hand in this flowering stage.Should rationally determine sowing time and transplanting date this breeding time at different Japonica Hybrid kind father and mother, promptly arrange on the basis in sowing time further rationally to determine suitable transplanting date according to after planting weather conditions and this developmental state of father and mother.Guarantee on this flower synchronization of father and mother basis, guarantee benign climate (evading continuous rainy weather) in flowering stage.4. vernalization is rationally cultivated strong seedling: sow preceding 2-3 days with Japonica Hybrid seed airing 3-4 hour, often stir in the airing process, make seed shine even the solarization thoroughly.Shine medicament seed soaking such as the back seed is clever with soaking seed, the bacterium worm is clear, seed soaking time 5-7 days, seed was fully cleaned with clear water in the seed soaking back, was placed on suitable local vernalization about 1 day, sowed about emitting the bud rate to reach 60%.5. Suitable Density and row ratio: according to the summaries to a plurality of countries authorization Japonica Hybrid kind production of hybrid seeds experiences such as assorted No. 2 of 3 excellent 18, Tianjin round-grained rice of breeding, excellent No. 1 of 10 excellent 18, middle round-grained rice, increasing maternal spike number, to improve hybrid seed yield be unusual otherwise effective technique approach.When the number of productive ear of female parent reached 160,000, per mu yield can reach about 225 kilograms, so should supervise the rice transplanting worker in strict accordance with the specification rice transplanting during rice transplanting, to guarantee enough maternal number of productive ears.Maternal rice transplanting specification is 6 * 4 cun, and male parent rice transplanting specification is 9 * 4 cun.It is comparatively suitable that father and mother's one's own profession ratio is arranged in 2: 8.6. effective prediction of flowering period technology: prediction of flowering period combines by arranging the stripping of auxiliary date of seeding and young fringe to look into, so-called auxiliary date of seeding, be meant preceding 5 and 10 days of formal land for growing field crops this sowing of father and mother, each arranges the originally sowing and the rice transplanting in advance of father and mother on 1 fen ground, as the auxiliary field piece of land for growing field crops this prediction of flowering period of father and mother.Take the stripping of young fringe to look into method auxiliary Tanaka, the per 3 days stripping 10 strain master fringes and first tillering tassel are checked growing process, till 7 phases of ear differentiation.Standard as prediction land for growing field crops this growing process of father and mother.Utilize the stripping of young fringe to look into this flower synchronization of father and mother criterion to be: ear differentiation in early stage male parent is 1 or 2 phases early, ear differentiation in mid-term male parent is early about the maternal semiduation or match, the maternal male parent early of later stage ear differentiation is about the semiduation, and promptly female parent was eared 1 or 2 day than male parent is early, the expression flower synchronization.7. effective florescence regulation technology: the florescence result according to the 6th step prediction carries out effective florescence adjusting, mainly contains fertilizer and regulates method and GA joint method; Fertile accent method is used the florescence that urea can effectively be postponed father and mother's basis before mainly being included in the fringe differentiation; Application of potash fertilizer can be postponed this florescence of father and mother; Use phosphate fertilizer and can postpone the maternal florescence, still the male parent florescence is had effect ahead of time; Impose 20 jin/mu of potassium sulphates in late tillering state and add 20 jin/mu of superphosphate, can make maternal delay 1 day, make 2 days ahead of time male parent florescence, this florescence of father and mother is regulated the accumulative total amplitude and reaches 3 days; GA is regulated method: if male parent and maternal flower synchronization are bad, every mu needs spray GA 20 grams, divides to spray for three times.For the first time, when I phase male parent is seen fringe 5% left and right sides, only spray I phase male parent, mu restrains with 5; The second time, every one day, only spray was maternal behind first pass, and mu restrains with 10; For the third time after second time every one day, only spray II phase male parent, mu restrains with 5.Scope effective time that this florescence of father and mother is regulated reaches 3 days.Regulation technology when 8. effectively spending: it is different that maternal male sterile line of Japonica Hybrid and male parent are recovered the flowering habit of system, also needs under the prerequisite of flower synchronization further to regulate this flowering time of father and mother guaranteeing, guarantees that every day can meet in the father and mother top of originally blooming.9. it is poor to widen this height of stachys position of father and mother; GA is the semifinished product of gibberellin, and except that this florescence of father and mother, flower the time are had the regulating action, it is poor to widen this height of stachys position of father and mother in the Japonica Hybrid production of hybrid seeds, makes father and mother originally reach best pollination situation.It is core and major technology measure the most in the Japonica Hybrid production of hybrid seeds that GA uses, and timely and appropriate discovery sprays GA, can improve ripening rate, thereby increases substantially hybrid seed yield.If flower synchronization is better in the production of hybrid seeds, every mu needs spray GA 20 grams, divides to spray for three times.For the first time saw fringe (cut phase) at 5% o'clock, only spray male parent, every mu of consumption 6 grams (area calculates by whole seed farms) in male parent; Spray after 2 days for the second time, only spray is maternal, every mu of consumption 8 grams; Spray for the third time this spray together of father and mother, every mu of consumption 6 grams after 2 days.Note avoiding when flower when spraying GA, generally before at 10 in the morning or after at 3 in afternoon, note simultaneously and will grow decision medication date for the first time according to male parent, follow would rather mother etc. the father can not the father etc. female principle.10. artificial supplementary pollination: the nylon rope with 1 centimetre of diameter is caught up with powder, spurring back and forth to vertical direction with row, has firmly swung pollen as far as possible.The plot that ridge is higher, the way that adopts rod to press rope or weigh down fragment of brick at nylon rope by two of ridge prevents from that the ridge periphery from leaking to catch up with.Specifically manually catching up with the powder time is after female parent is bloomed, every day specifically catch up with the powder time according to the situation of blooming, generally speaking since about the morning 10:30, every 30 minutes once, catch up with powder every day 5～6 times, finish about 2:00 in the afternoon approximately, the whole florescence catches up with powder about 20 days.If run into the light rain cloudy day, bloom and still need to catch up with powder if stop behind the rain male parent.If run into heavy rain weather, second day general began to catch up with powder ahead of time in 30 minutes.
Effectively disease pest and weed control: disease pest and weeds such as keypoint control false smut, rice blast, striped rice borer, rice fulgorid, barnyard grass grass, convexutricle sedge herb.Wherein to prevent and treat optimum period be before the booting later stage cut 3-10 days to false smut, utilizes copper agent such as DT, network ammonia copper, copper nobleness; Tin preparation such as fentin acetate; Chemical controls such as triazole bactericidal agent such as own azoles alcohol, Tebuconazole, love seedling, Jiarun, generation seedling.Rice field residue rice shoot is removed in the rice blast control early, reduces the bacterium source.Rice tillering suitably falls to doing roasting field latter stage.Use medicaments such as tricyclazole, Isoprothiolane, Prochloraz, antibacterial agent 402, kasugarnycin respectively to prevent and treat once at preceding about 7 days of cut and full heading time.Effective agent control that striped rice borer uses that good fortune dagger-axe, the Wang Xing that closes the eyes, worm are frustrated etc., dimehypo or desinsection list are prevented heterodyne.Utilize that rice outstanding person, benthiocarb, Stam F-34, Mercury etc. are efficient, broad-spectrum herbicide removes and kills barnyard grass grass, convexutricle sedge herb and broad leaved weed.
Gather in the crops, the science airing: paddy rice generally needs 40～45 days from blooming to maturation in good time, and seed bud rate improves with its growth, the seed of complete ripeness before frost, maturity is good, and its bud rate is the highest, the preceding results of frost are best harvest time, for reducing seed moisture content, gather in the crops as far as possible in the afternoon.The science airing is guaranteed to process the back seed moisture content and is not surpassed 14%.Heliacal rising is early shone too early unsuitablely during artificial airing, and the place of preheating in advance wants duty to turn over noon when sunlight is strong, make the interior temperature of seed even, prevents to be exposed to the sun.Big or chance rainy weather adopts drying machine drying as grain weight, and temperature is suitable during oven dry.
Retrofit: utilize seed processing machineries such as separator, bearder to carry out seed and add man-hour, guarantee that according to the characteristic of different cultivars the processing equipment rotating speed is suitable, the shelling rice that the reduction of trying one's best causes thus and the ratio of broken rice, assurance seed quality.
Vernalization rationally: after the commercial seed behind the processing and packing is sold to the rice farming, guarantee reasonable vernalization.Generally prior to seeding 2-3 days with Japonica Hybrid seed airing 3-4 hour, often stir in the airing process, make seed shine even shine saturating.Shine medicament seed soaking such as the back seed is clever with soaking seed, the bacterium worm is clear, seed soaking time 5-7 days, seed was fully cleaned with clear water in the seed soaking back, was placed on suitable local vernalization about 1 day, sowed about emitting the bud rate to reach 60%.
Claims (10)
1. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity is characterized in that, mainly may further comprise the steps: 1. select suitable production of hybrid seeds base; 2. use the high-purity male sterile line as maternal breeding; 3. sowing time and transplanting date suit: 4. vernalization rationally, cultivate strong seedling: sow preceding 2-3 days with Japonica Hybrid seed airing 3-4 hour, often stir in the airing process, make seed shine even the solarization thoroughly; Shine medicament seed soaking such as the back seed is clever with soaking seed, the bacterium worm is clear, seed soaking time 5-7 days, seed was fully cleaned with clear water in the seed soaking back, was placed on suitable local vernalization about 1 day, sowed about emitting the bud rate to reach 60%; 5. Suitable Density and row compare: guarantee enough maternal number of productive ears.Maternal rice transplanting specification is 6 * 4 cun, and male parent rice transplanting specification is 9 * 4 cun; It is comparatively suitable that father and mother's one's own profession ratio is arranged in 2: 8; 6. effective prediction of flowering period technology: prediction of flowering period combines by arranging the stripping of auxiliary date of seeding and young fringe to look into; Regulation technology when 7. effectively the florescence is with flower: the florescence result according to the 6th step prediction carries out effective florescence adjusting, mainly contains fertilizer and regulates method and GA adjusting method; 8. it is poor to widen this height of stachys position of father and mother with GA; 9. artificial supplementary pollination; 10. effectively disease pest and weed control;
In good time results, the science airing, retrofit guarantees to obtain the seed of the high bud ratio of high-purity.
2. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that, described step 1 selects suitable production of hybrid seeds base to be meant: select physical features smooth, irritate row easily in flakes the soil as production of hybrid seeds base, the isolation distance that production of hybrid seeds base must have more than 500 meters promptly should not have other rice varieties in 500 meters scopes except that male parent, should guarantee sufficient water source in addition.
3. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1 is characterized in that the high-purity male sterile line is meant in the described step 2: purity reaches 99.99%.
4. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that, proper seeding comprises the two aspects meaning in the described step 3, the one, guarantee this florescence of father and mother in suitable season, the north mainly is arranged in late July to mid-August; The 2nd, guarantee this flower synchronization of father and mother; We discover that father and mother are decided by also to be decided by transplanting date sowing time on the one hand in this flowering stage; Should rationally determine sowing time and transplanting date this breeding time at different Japonica Hybrid kind father and mother, promptly arrange on the basis in sowing time further rationally to determine suitable transplanting date according to after planting weather conditions and this developmental state of father and mother; Guarantee on this flower synchronization of father and mother basis, guarantee benign climate in flowering stage.
5. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that, so-called auxiliary date of seeding, be meant preceding 5 and 10 days of formal land for growing field crops this sowing of father and mother in the described step 6, each arranges the originally sowing and the rice transplanting in advance of father and mother on 1 fen ground, as the auxiliary field piece of land for growing field crops this prediction of flowering period of father and mother; Take the stripping of young fringe to look into method auxiliary Tanaka, the per 3 days stripping 10 strain master fringes and first tillering tassel are checked growing process, till 7 phases of ear differentiation; Standard as prediction land for growing field crops this growing process of father and mother; Utilize the stripping of young fringe to look into this flower synchronization of father and mother criterion to be: ear differentiation in early stage male parent is 1 or 2 phases early, ear differentiation in mid-term male parent is early about the maternal semiduation or match, the maternal male parent early of later stage ear differentiation is about the semiduation, and promptly female parent was eared 1 or 2 day than male parent is early, the expression flower synchronization.
6. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1 is characterized in that fertile accent method is used the florescence that urea can effectively be postponed father and mother's basis before mainly being included in the fringe differentiation in the described step 7; Application of potash fertilizer can be postponed this florescence of father and mother; Use phosphate fertilizer and can postpone the maternal florescence, still the male parent florescence is had effect ahead of time; Impose 20 jin/mu of potassium sulphates in late tillering state and add 20 jin/mu of superphosphate, can make maternal delay 1 day, make 2 days ahead of time male parent florescence, this florescence of father and mother is regulated the accumulative total amplitude and reaches 3 days; GA is regulated method: if male parent and maternal flower synchronization are bad, every mu needs spray GA 20 grams, divides to spray for three times.For the first time, when I phase male parent is seen fringe 5% left and right sides, only spray I phase male parent, mu restrains with 5; The second time, every one day, only spray was maternal behind first pass, and mu restrains with 10; For the third time after second time every one day, only spray II phase male parent, mu restrains with 5; Scope effective time that this florescence of father and mother is regulated reaches 3 days; Effective regulation technology during flower: it is different that maternal male sterile line of Japonica Hybrid and male parent are recovered the flowering habit of system, also needs under the prerequisite of flower synchronization further to regulate this flowering time of father and mother guaranteeing, guarantees that every day can meet in the father and mother top of originally blooming.
7. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that, GA can be used for widening this height of stachys position of father and mother difference and is meant in the described step 8: if flower synchronization is better in the production of hybrid seeds, every mu needs spray GA 20 grams, divides to spray for three times; When male parent is seen fringe 5%, only spray male parent for the first time, every mu of consumption 6 grams; Spray after 2 days for the second time, only spray is maternal, every mu of consumption 8 grams; Spray for the third time this spray together of father and mother, every mu of consumption 6 grams after 2 days; Note avoiding when flower when spraying GA, generally before at 10 in the morning or after at 3 in afternoon, note simultaneously and will grow decision medication date for the first time according to male parent, follow would rather mother etc. the father can not the father etc. female principle.
8. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that, described step 9 artificial supplementary pollination is meant: the nylon rope with 1 centimetre of diameter is caught up with powder, spurring back and forth to vertical direction with row, has firmly swung pollen as far as possible.The plot that ridge is higher, the way that adopts rod to press rope or weigh down fragment of brick at nylon rope by two of ridge prevents from that the ridge periphery from leaking to catch up with.Specifically manually catching up with the powder time is after female parent is bloomed, every day specifically catch up with the powder time according to the situation of blooming, generally speaking since about the morning 10:30, every 30 minutes once, catch up with powder every day 5～6 times, finish about 2:00 in the afternoon approximately, the whole florescence catches up with powder about 20 days.If run into the light rain cloudy day, bloom and still need to catch up with powder if stop behind the rain male parent.If run into heavy rain weather, second day general began to catch up with powder ahead of time in 30 minutes.
9. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that described step 10 effectively disease pest and weed control is meant: prevent and treat disease pest and weeds such as false smut, rice blast, striped rice borer, rice fulgorid, barnyard grass grass, convexutricle sedge herb; Wherein to prevent and treat optimum period be before the booting later stage cut 3-10 days to false smut, utilizes copper agent such as DT, network ammonia copper, copper nobleness; Tin preparation such as fentin acetate; Chemical controls such as triazole bactericidal agent such as own azoles alcohol, Tebuconazole, love seedling, Jiarun, generation seedling.Rice field residue rice shoot is removed in the rice blast control early, reduces the bacterium source.Rice tillering suitably falls to doing roasting field latter stage.Use medicaments such as tricyclazole, Isoprothiolane, Prochloraz, antibacterial agent 402, kasugarnycin respectively to prevent and treat once at preceding about 7 days of cut and full heading time.Effective agent control that striped rice borer uses that good fortune dagger-axe, the Wang Xing that closes the eyes, worm are frustrated etc., dimehypo or desinsection list are prevented heterodyne.Utilize that rice outstanding person, benthiocarb, Stam F-34, Mercury etc. are efficient, broad-spectrum herbicide removes and kills barnyard grass grass, convexutricle sedge herb and broad leaved weed.
10. the high bud rate one steady three high producing method for seed of triple crossing japonica rice high and stable yields high-purity according to claim 1, it is characterized in that described step 11 is meant that paddy rice is from blooming to maturation, generally need 40～45 days, seed bud rate improves with its growth, the seed of complete ripeness before frost, and maturity is good, its bud rate is the highest, the preceding results of frost are best harvest time, for reducing seed moisture content, gather in the crops as far as possible in the afternoon; The science airing is guaranteed to process the back seed moisture content and is not surpassed 14%; Heliacal rising is early shone too early unsuitablely during artificial airing, and the place of preheating in advance wants duty to turn over noon when sunlight is strong, make the interior temperature of seed even, prevents to be exposed to the sun; Big or chance rainy weather adopts drying machine drying as grain weight, and temperature is suitable during oven dry.: utilize seed processing machineries such as separator, bearder to carry out seed and add man-hour, guarantee that according to the characteristic of different cultivars the processing equipment rotating speed is suitable, the shelling rice that the reduction of trying one's best causes thus and the ratio of broken rice, assurance seed quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100036086A CN102144514A (en) | 2011-01-11 | 2011-01-11 | Method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100036086A CN102144514A (en) | 2011-01-11 | 2011-01-11 | Method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102144514A true CN102144514A (en) | 2011-08-10 |
Family
ID=44419152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100036086A Pending CN102144514A (en) | 2011-01-11 | 2011-01-11 | Method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102144514A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285540A (en) * | 2014-09-25 | 2015-01-21 | 句容市农业技术推广中心 | Seed soaking method for controlling vigorous growth of rice seedlings raised in hardpan of hard land |
| CN104488882A (en) * | 2015-01-09 | 2015-04-08 | 姚卫平 | Field barrel mixture pesticide synergist formula aiming at rice blast and false smut and spraying method thereof |
| CN104542256A (en) * | 2015-01-04 | 2015-04-29 | 陈丁龙 | Breeding method for importing false smut resistance of indica rice into japonica rice |
| CN105613279A (en) * | 2016-03-15 | 2016-06-01 | 盐城市新洋农业试验站 | Method for florescence prediction in hybrid rice seed production |
| CN106804355A (en) * | 2017-02-09 | 2017-06-09 | 合肥隆扬农业科技有限公司 | A kind of method for culturing seedlings of paddy rice |
| WO2018166135A1 (en) * | 2017-03-16 | 2018-09-20 | 南通季和米业有限责任公司 | Rice emasculation and hybrid seed production method |
-
2011
- 2011-01-11 CN CN2011100036086A patent/CN102144514A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285540A (en) * | 2014-09-25 | 2015-01-21 | 句容市农业技术推广中心 | Seed soaking method for controlling vigorous growth of rice seedlings raised in hardpan of hard land |
| CN104285540B (en) * | 2014-09-25 | 2016-05-25 | 句容市农业技术推广中心 | A kind of seed-soaking method of controlling the prosperous length of paddy rice hard place hard disk seedling rice shoot |
| CN104542256A (en) * | 2015-01-04 | 2015-04-29 | 陈丁龙 | Breeding method for importing false smut resistance of indica rice into japonica rice |
| CN104488882A (en) * | 2015-01-09 | 2015-04-08 | 姚卫平 | Field barrel mixture pesticide synergist formula aiming at rice blast and false smut and spraying method thereof |
| CN105613279A (en) * | 2016-03-15 | 2016-06-01 | 盐城市新洋农业试验站 | Method for florescence prediction in hybrid rice seed production |
| CN106804355A (en) * | 2017-02-09 | 2017-06-09 | 合肥隆扬农业科技有限公司 | A kind of method for culturing seedlings of paddy rice |
| WO2018166135A1 (en) * | 2017-03-16 | 2018-09-20 | 南通季和米业有限责任公司 | Rice emasculation and hybrid seed production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103597998B (en) | Cultivation method of cotton by drip irrigation under plastic film | |
| CN105724012A (en) | Rice field-upland field rotation method for achieving no-tillage double cropping of late rice in spring maize field | |
| CN104186195A (en) | High-yield corn planting method | |
| CN102835302A (en) | Method for producing seeds of hybrid japonica rice mechanically and fully | |
| CN101919351A (en) | Production method of hybrid rice | |
| CN101019505A (en) | Breeding process of rice blast-resisting high quality and high yield round-grained rice variety Zhendao-10 | |
| CN102090316A (en) | Method for producing rice hybrid Guangliangyou 206 | |
| CN102415259A (en) | High-yield cultivation method of summer maize | |
| CN102144514A (en) | Method for producing ternary hybrid japonica rice with stable and high yield, high purity and high germination rate | |
| CN102960236A (en) | Full-mechanical seed production method of hybrid rice | |
| CN105850621A (en) | Method for direct sowing culture of single cropping late rice | |
| CN104160949B (en) | A kind of hybrid rice opens the selection of excellent No. 18 | |
| CN102301948A (en) | Method for breeding high-yield and disease-resistant glutinous rice | |
| CN102812899A (en) | Safe and highly efficient preparation and propagation method and special isolation hood used therein | |
| CN108243882A (en) | A kind of plantation of ratooning rice and processing method | |
| CN109588239A (en) | A kind of multiple rice regeneration rice breeding method | |
| CN104186304B (en) | A kind of hybrid rice opens the selection of fragrant excellent No. 3 | |
| CN101044835B (en) | Method for producing hybrid rice seeds of light-temperature sensitive male sterility line under higher temperature or long-day high temperature | |
| CN105557272A (en) | High-yielding cultivation method of millets | |
| CN101147464A (en) | Japonica type hybridized rice high production breeding method | |
| CN100391331C (en) | High-yield seeds production technique for japonica hybrid rice | |
| CN101810096B (en) | Method for cultivating greenhouse lettuces | |
| CN105123176B (en) | A kind of method for improving cabbage cenospecies ' visiting the spring ' hybrid seed yield and quality | |
| CN105009857A (en) | Wholly-covered intercropping and interplanting method for watermelon, garlic and Chinese cabbage | |
| CN110583474A (en) | Simplified mixed sowing seed production method for small-grain type sterile line of rice |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110810 |