CN103988773B - Indica Hybrid Rice combines 6 liang of excellent producing method for seed of No. 2 - Google Patents
Indica Hybrid Rice combines 6 liang of excellent producing method for seed of No. 2 Download PDFInfo
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Abstract
The invention discloses a kind of Indica Hybrid Rice to combine 6 liang of excellent producing method for seed of No. 2, category rice seeding technique field.Its female parent and male parent are：Maternal 602S, male parent restorer HR2；The factors such as weather, soil, kind and cultivation mode based on Xuzhou Area carry out the research and demonstration of the regional efficient production model of rice seed production and high-yield.For improving Xuzhou City's agricultural modernization level, realization, which relies on scientific and technological advances, solves the problems, such as that agriculture, rural areas and farmers are significant, and to national rice seed production and high-yield, efficiently production has reference.
Description
Technical field
The invention discloses a kind of Indica Hybrid Rice to combine 6 liang of excellent producing method for seed of No. 2, category rice seeding technique field.
6 liang of excellent No. 2 production of hybrid seeds are combined suitable for two-line early hybrid rice rice.
Background technology
Ripe Hybrid Rice in 6 liang of excellent two systems of No. 2 category, by Jiangsu Province Xuzhou Farm Agriculture Science Institute and Jiangsu Province
Xuzhou great Hua Zhong industry Co., Ltd is male parent combo by maternal, restorer HR2 of photo-thermo-sensitive genic male sterile line 602S, is educated in 2006
Into.Authorized by the variety certification committee of Jiangsu Province within 2013.Suitable for being planted in Jiangsu Province's medium rice area.
Because the weather, soil, Crosses of Rice Territorial Difference in China north and south rice production of hybrid seeds area are obvious, cause miscellaneous
During handing over the rice production of hybrid seeds, the growth characteristics of parent, the use etc. of sowing time, flower chance standard and chemical regulator exist larger
Difference；Original breeding technology for hybrid rice yields poorly in Xuzhou Area, every mu of about 200Kg, compared with commodity Rice Cropping, compares
Benefit is low, causes peasant's production of hybrid seeds enthusiasm not high；Current breeding of hybrid rice yield is only capable of meeting this season demand, and effective storage capacity is low
The production safety of hybrid rice is had influence on.Under these circumstances, Xuzhou Area rice seed production and high-yield Efficient Cultivation is established in research
Pattern and Standardization System, for improving agricultural modernization level, realization, which relies on scientific and technological advances, solves the problems, such as that agriculture, rural areas and farmers have weight
Big meaning.
The content of the invention
The present invention provides a kind of Indica Hybrid Rice and combines 6 liang of excellent producing method for seed of No. 2, weather, soil based on Xuzhou Area
The factors such as earth, kind and cultivation mode carry out the research and demonstration of the regional efficient production model of rice seed production and high-yield.Main mesh
Be in the case where not increasing breeding cost, improve yield.
The present invention is realized with following technical scheme：A kind of Indica Hybrid Rice combines 6 liang of excellent producing method for seed of No. 2, its
It is maternal to be with male parent：Maternal 602S, male parent restorer HR2；Specific producing method for seed is as follows：
1) base selection：Relatively concentrate in flakes in field；Fertile soil, Drafting Ability is good, and irrigation and drainage are convenient, high yields irrespective of drought or water logging, illumination
It is sufficient；Without quarantine rice pest；
2) condition is isolated：Space isolates or time isolation；The space isolation is to be no different male parent in 200m around production of hybrid seeds area
Long-grained nonglutinous rice, 500m are interior without round-grained rice (glutinous) rice.The Different Rice Varieties introduces a collection left for preceding stubble, special seedling field must have by some
Effect measure is removed；Time isolation is seed farm and other rice field florescences outside surrounding male parent stagger more than 25d；
3) seedling：
A, rice seedling bed selects:Make seedbed in the plot that selection physical features is flat, irrigation and drainage are convenient, loosing soil is fertile；
B, seedling raising method:Because the male parent length of time rice seedlings grow is oversize, have ready conditions preferably with the seedling of two sections of ground pond, otherwise, light seeding is even to be broadcast
Film covers；Rice seedling bed is with crop field than 1：50；Cultivate more tillers and strengthen seedling, accelerate the leaf emergence rate of male parent；
C, fertilising and seedbed make：Base fertilizer is used sufficient, farm manure is applied more and adds a small amount of quick-acting fertilizer, muck 20kg/m2Added
75~100g/m of calcium phosphate2Add 15~20g/m of urea2Add 20~30g/m of potassium chloride2, furrow face wants essence to turn over thin rake, reaches Horizon mud
It is ripe；One week soaked field prior to seeding, water submerged field 5~10cm of soil is proper, and the general wide 1.4~1.5m of furrow, a width of 25cm of ditch~
30cm, 15~20cm of ditch depth；
D, seed treatment：10% imidacloprid 15g is added to submerge seed to 5~6kg of water using 25% " making hectogram " 2ml
Need 48h, then with clear water rinsed clean, drain water, vernalization at 20~25 DEG C, showing money or valuables one carries unintentionally to sow；
E, sowing time and the amount of broadcasting：One phase male parent sowing on April 27, per 667m2Crop field sowing quantity 0.6kg, the second stage of male parent are 5
The moon 8 was sowed, per 667m2Crop field sowing quantity 0.85kg, by the enough sowings of furrow, collapsed paddy drowning with plank after broadcasting；
Maternal date of seeding, determines according to the leaf age size of first phase male parent, is sowed as far as possible before May 30, every mu of crop field sowing quantity
4.5kg, premature rice amount is in 0.375kg/m2；Uniformly sow by furrow are enough, paddy of being collapsed after broadcasting, then covered with fine earth, to lose Gu Weidu,
After being all seeped into water Deng seedling plate, water is drained；
F, rice seedling bed rich water quality management：Male parent, female parent moisten after broadcasting to holding seedling plate before 3 leaves, and the ditch-water of fine day half, the rainy day drains
Water, upper water seedling plate establishes shoaling layer after 3 leaves.Wean fertilizer is applied during 21 heart of leaf, per 667m2Apply 2~2.5kg of urea；The leaf phase of male parent 4 applies
Tillering fertilizer, per 667m2Urea 3.5kg adds potassium chloride fertilizer 4kg, and 3~4d is per 667m before transplanting2Apply 3.5~4kg of urea；
G, rice seedling bed weeding：With the happiness of 6% rice in the leaf phase of weeds 2~3 with 150ml (100ml/ bottles), per 667m2It is watered 20~
30kg carries out high concentration to weeds cauline leaf and carefully sprayed (medicine will be got on weeds)；Draining before medication, reveal weeds cauline leaf more than 2/3
Go out the water surface, poured water after dispenser in 24h to 72h, keep 3~5cm water layers, 5~7d；
H, the prevention and control of plant diseases, pest control
Rice seedling bed initial stage, with 20% tricyclazole 100g/667m2Rice blast is prevented and treated to water 50kg even sprayings；3~4d before transplanting
With 5% Frontline 50g/667m2Add 10% imidacloprid 40g/667m2, it is watered 40kg even sprayings；
4) the crop field production of hybrid seeds
Plough：Production of hybrid seeds plot selection water project situation is good, and irrigation and drainage are convenient, and sunny, pest and disease damage is few, fertile soil, traffic
It is convenient；It should in time plough and sun the earth which has been ploughed up after preceding crop harvest, transplanting the last week upper water, harrow a field smooth wait rice transplanting after rotary tillage；
The field-transplanting date：Two phase male parent transplantings on June 15, all transplanting terminates before maternal June 20, ensures that parent is begun
Ear period reduces the maternal probability that low temperature effect is met in fertility-sensitive period before August 20 days.
Field-transplanting specification：The row ratio of Parent requires 1:11~12, railway carriage or compartment 2.0~2.1m of breadth, male parent is first planted during transplanting,
It is 15cm to plant specification spacing in the rows, and the phase of same old farmer sheet one has inserted, then inserts the second phase, and two phase of single file male parent plants ratio 3~4：
3, per 667m22200 caves or so are planted, plant sufficient Basic Seedling 0.8~1.0 ten thousand；Male parent planted within 5 days after planting it is maternal, Parent at intervals of
30cm, it is 13.3cm × 15cm that female parent, which plants specification, per 667m22.2~2.5 ten thousand caves are planted, plant sufficient Basic Seedling 60,000.Must
Pay attention to Parent plant quality, particularly male parent to descend westerly zone mud plant；Female parent wants surface planting, keep-alive, promotees fast hair；
Field management：Including fertilizer application plus composite fertilizer, temperature observation and water starch management；The fertilizer application requirement is applied
Sufficient base manure, early applies tillering fertilizer, adds ear manuer；Accomplish preceding weight, middle control, rear benefit；N P and K is used cooperatively, leveling field of being raked the soil level after fertilising
Block, 2~3d is per 667m after male parent transplanting2Apply urea and each 4~5kg of Diammonium phosphate (DAP) partially；Latter thorough field, which is planted, in female parent imposes rush
Fetilizer for tillering, ear manuer use will determine Dressing date and quantity according to growth of cereal crop seedlings growing way and flower chance situation；The temperature observation and water starch management
It is during maternal ear differentiation 3~6, pays close attention to temperature Change；Watch that weather forecast and observation temperature are live daily, put down day
Equal temperature is less than 23.5 degree or minimum temperature is less than 20 degree, takes draining on daytime immediately, and the insulation that night fills deep water (20cm) is arranged
Apply, improve the temperature of young fringe portion position, actively prevent low temperature transformation；Tillering stage thin water frequent irrigation, shallow water promote tiller, and putting field must do
Arrive：Seedling to when not waiting, when to seedling is not waited, heading flowering period will also pour water conditioning, and the pustulation period, dry dry and wet was wet, 7 days before harvesting
Nature of cutting off the water supply falls dry；
Prediction of flowering period and regulation：Including ideal flower chance standard and flowering regulation；The maternal beginning fringe of the preferable flower chance standard
Earlier than 1~2d of male parent；Prediction of flowering period is based on leaf age, and supplemented by growing way appearance, young fringe stripping is looked into verify, two be that the production of hybrid seeds adjusts flower to arrange
Impose based on rush；The flowering regulation is when Parent enters panicle primordium dif ferentiation stage, is started every 3d, and different type plot is carried out
Young fringe, every general continuous stripping 10 male parents of inspection and 10 female parents are looked into stripping；Ear differentiation stage of father and mother's in-group determine with
50%~60% plant reaches some differentiation period and is defined；Observation compares the ear differentiation process of Parent, early with maternal ratio
1~2d of male parent is standard, such as finds that deviation number of days more than more than 3 days, should take regulation measure, the phase of ear differentiation I~III is with fertilizer
Water regulation and control male parent promotes maternal growth preferably, as male parent is fast, should discharge water and put field, while maternal applies potassium dihydrogen phosphate partially；If
Male parent is partially slow, should pour water and promote male parent growth.
Production of hybrid seeds ancillary method：Including cutting leaf, growth regulator being sprayed after leaf is cut；
Artificial pollination：When father, female parent bloom 10% when artificial pollination；
Disease pest and weed is prevented and treated：In disease pest and weed preventing and treating, using control and biological control is changed, use safely and mark by pollution-free food
Quasi- applying pesticides, reduce environmental pollution and remain
Roguing：Nursery period, should pull out tall and big hybrid strain according to leaf sheath color, leaf color, the shape of blade；Tillering stage pulls out
The tall and big hybrid strain different with form；It is the critical period of impurity elimination before and after heading, all kinds of hybrid strains are pulled out in whole field, and the control of hybrid strain rate exists
Within 0.1%；Grouting parameter pulls out the strange high miscellaneous shape strain of setting percentage；
5) seed harvest, processing, storage：
Harvest：Female parent heading is gathered in after 32 days, it is ensured that seed quality and yield, avoids losing；After male parent harvest, then to mother
This impurity elimination 2 times, pick up maternal male parent in the ranks, female parent is received again after waiting inspector's acceptance(check)；Processing：Timely one after female parent harvest
Secondary property dries or directly entered low temp dryer drying and arrives within moisture 12.5%；Selected packaging after drying；Storage：Seed answers special storehouse
Storage, prevents mechanical admixture, temperature, humidity and the seed quality situation in close observation kind storehouse.
6) Seed Inspection.
The beneficial effects of the invention are as follows：Breeding of hybrid rice yield is high, and maternal yield is per 667m2More than yield 250kg.It is right
In improving Xuzhou City's agricultural modernization level, realization, which relies on scientific and technological advances, solves the problems, such as that agriculture, rural areas and farmers are significant, to the whole nation
Efficiently production has reference to rice seed production and high-yield.
Embodiment
Parent feature
Maternal feature：Maternal 602S is Jiangsu Province Xuzhou great Hua Zhong industry Co., Ltd using Guangzhan 63S as female parent, with morning
Xian R402 are paternal hybrid, the photo-thermo-sensitive genic male sterile line for selecting to be bred as through 6 generation pedigrees；Maternal plant type is compact, and stooling is strong, leaf color
Dark green, the cm of plant height 78, stem total leaf number 14 is opened；Fringe type is larger, the cm of spike length 25；Sowing to beginning ear period is lasted
78d, average grains per panicle 140 or so, bag neck length about 8cm are sensitive to " 920 "；Column cap is colourless；Flowering habit is good, Hua Shi
Concentrate, under normal weather conditions, the first flower of the morning 8: 30-9: 00, be day bloom peak at 9: 30-11: 30, and 14: 00 or so spend eventually, cloudy
It can be postponed；Average 32 degree or so of angle of glume opening, single clever the flowers are in blossom closes grain husk and last 90min or so, clever chapiter exposing ratio 81%
Left and right, wherein double exposing ratios 45% or so, outcrossing seed-setting rate is up to 50% or so.
Male parent feature：Male parent restorer HR2, which is sowed to beginning ear period, lasts 96~106d, and Leaves on main stem 18 is opened, tiller
Power is strong；Property in great numbers is good；110~120cm of plant height；Fringe type is larger, spike length 19.9 or so, Defined daily doses 120~130；Just
In the case of often, fine day 9:00~9:30 open clever spewing silk, 11:30 or so is bloom peak, individual plant florescence 12~15d, Hua Shi
Concentrate, pollen amount is larger.
Yield index：Maternal yield is per 667m2More than yield 250kg.Yield forming：Maternal every 667m22.4 ten thousand caves are planted,
Double sheets or three plant, per 667m2Average effective fringe 15.9~16.0 ten thousand, per the total floret bears of fringe 120~140, bear fruit grains 67
~70, setting percentage 55%, mass of 1000 kernel 24g or so.
Growing process：
Seeding stage is sowed to transplanting, phase male parent 48d, the second stage of male parent 38d, maternal 20d.
Growth retardation is to normal restoration ecosystem 3-5d after period of seedling establishment transplanting.
Tillering stage turns green to jointing 18-22d.
The long ear period ear differentiation of jointing is to beginning 35~40d of fringe.
During Grain-filling beginning fringe is to grain maturation 30d.
Seeding technique
Parental seed quality：Parental seed quality performs GB4404.1
1st, base selection
Relatively concentrate in flakes in field；Fertile soil, Drafting Ability is good, and irrigation and drainage are convenient, high yields irrespective of drought or water logging, and illumination is sufficient；Without quarantine
Property rice pest；The enthusiasm of masses' production of hybrid seeds is high, is skilled in technique；Local transit condition is convenient.
2nd, condition is isolated：Using one of following isolation condition,
Space isolates：Male parent long-grained nonglutinous rice is no different around production of hybrid seeds area in 200m, 500m is interior without round-grained rice (glutinous) rice.Left for preceding stubble
Different Rice Varieties introduces a collection, special seedling field must be removed by some effective measures.
Time isolates：Other rice field florescences outside seed farm and surrounding male parent stagger more than 25d.
3rd, seedling：
Rice seedling bed selects：Make seedbed in the plot that selection physical features is flat, irrigation and drainage are convenient, loosing soil is fertile.
Seedling raising method：Because the male parent length of time rice seedlings grow is oversize, have ready conditions preferably with the seedling of two sections of ground pond, otherwise, light seeding is even broadcast it is thin
Film covers.Rice seedling bed is with crop field than 1：50；Cultivate more tillers and strengthen seedling, accelerate the leaf emergence rate of male parent.
Fertilising makes with seedbed：Base fertilizer is used sufficient, farm manure is applied more and adds a small amount of quick-acting fertilizer, muck 20kg/m2Added phosphorus
Sour 75~100g/m of calcium2Add 15~20g/m of urea2Add 20~30g/m of potassium chloride2, furrow face wants essence to turn over thin rake, it is ripe to reach Horizon mud.
One week soaked field prior to seeding, water submerged field 5~10cm of soil is proper, and the general wide 1.4~1.5m of furrow, a width of 25cm of ditch~
30cm, 15~20cm of ditch depth.
Seed treatment：The imidacloprid 15g for adding 10% using 25% " making hectogram " 2ml needs to 5~6kg of water, submergence seed
48h, then with clear water rinsed clean, drains water, and vernalization at 20~25 DEG C, showing money or valuables one carries unintentionally to sow.
Date of seeding and the amount of broadcasting：One phase male parent sowing on April 27, per 667m2Crop field sowing quantity 0.6kg, the second stage of male parent are May 8
Day sowing, per 667m2Crop field sowing quantity 0.85kg, by the enough sowings of furrow, collapsed paddy drowning with plank after broadcasting.
Maternal date of seeding, determines according to the leaf age size of first phase male parent, is sowed as far as possible before May 30, every mu of crop field sowing quantity
4.5kg, premature rice amount is in 0.375kg/m2.Uniformly sow by furrow are enough, paddy of being collapsed after broadcasting, then covered with fine earth, to lose Gu Weidu,
After being all seeped into water Deng seedling plate, water is drained.
Rice seedling bed rich water quality management：Male parent, female parent broadcast after to keeping seedling plate moistening, the ditch-water of fine day half before 3 leaves, the rainy day drains water, 3
Upper water seedling plate establishes shoaling layer after leaf.Wean fertilizer is applied during 21 heart of leaf, per 667m2Apply 2~2.5kg of urea.
The leaf phase of male parent 4 applies tillering fertilizer, per 667m2Urea 3.5kg adds potassium chloride fertilizer 4kg, and 3~4d is per 667m before transplanting2Apply urine
3.5~4kg of element.
Rice seedling bed weeding：With the happiness of 6% rice in the leaf phase of weeds 2~3 with 150ml (100ml/ bottles), per 667m2It is watered 20~30kg
High concentration is carried out to weeds cauline leaf carefully to spray (medicine will be got on weeds).Draining before medication, make 2/3 water exposed above of weeds cauline leaf
Face, poured water after dispenser in 24h to 72h, keep 3~5cm water layers, 5~7d.
The prevention and control of plant diseases, pest control：Rice seedling bed initial stage, with 20% tricyclazole 100g/667m2Rice blast is prevented and treated to water 50kg even sprayings；
3~4d, 5% Frontline 50g/667m before transplanting2Add 10% imidacloprid 40g/667m2, it is watered 40kg even sprayings
4th, the crop field production of hybrid seeds
Plough：Production of hybrid seeds plot should select water project situation good, and irrigation and drainage are convenient, and sunny, pest and disease damage is few, fertile soil, hand over
Defaecation profit.It should in time plough and sun the earth which has been ploughed up after preceding crop harvest, transplanting the last week upper water, harrow a field smooth wait rice transplanting after rotary tillage.
The field-transplanting date：Two phase male parent transplantings on June 15, all transplanting terminates before maternal June 20, ensures that parent is begun
Ear period reduces the maternal probability that low temperature effect is met in fertility-sensitive period before August 20 days.
Field-transplanting specification：The row ratio of Parent requires 1:11~12, railway carriage or compartment 2.0~2.1m of breadth, male parent is first planted during transplanting,
It is 15cm to plant specification spacing in the rows, and the phase of same old farmer sheet one has inserted, then inserts the second phase, and two phase of single file male parent plants ratio 3~4：
3, per 667m22200 caves or so are planted, plant sufficient Basic Seedling 0.8~1.0 ten thousand.Male parent planted within 5 days after planting it is maternal, Parent at intervals of
30cm, it is 13.3cm × 15cm that female parent, which plants specification, per 667m22.2~2.5 ten thousand caves are planted, plant sufficient Basic Seedling 60,000.Must
Pay attention to Parent plant quality, particularly male parent to descend westerly zone mud plant；Female parent wants surface planting, keep-alive, promotees fast hair.
Field management：
A, fertilizer application
Fertilizer application requirement uses sufficient base manure, early applies tillering fertilizer, adds ear manuer.Accomplish preceding weight, middle control, rear benefit.N P and K is matched somebody with somebody
Close and use, per 667m2Base applies carbon ammonium 30kg, efficient multicomponent composite fertilizer (15-15-15) 20~25kg, 2~3kg of zinc fertilizer.After fertilising
Rake the soil level and flatten field, 2~3d is per 667m after male parent transplanting2Apply urea and each 4~5kg of Diammonium phosphate (DAP) partially；Latter week is planted in female parent
Full field imposes rush fetilizer for tillering, per 667m2With 12~15kg of urea, when ear manuer use will be applied surely according to growth of cereal crop seedlings growing way and flower chance situation
Phase and quantity are general per 667m2Using 4~8kg of urea, add composite fertilizer (15-15-15) 10~15kg.
B, temperature observation and water starch management
During maternal ear differentiation 3~6, temperature Change is paid close attention to.Watch that weather forecast and observation temperature are real daily
Condition, once there is strong cold air, daily mean temperature is less than 23.5 degree or minimum temperature is less than 20 degree, takes draining on daytime immediately,
Night fills the Insulation of deep water (20cm), improves the temperature of young fringe portion position, actively prevents low temperature transformation.Tillering stage, thin water was diligent
Fill, shallow water promotees tiller, and putting field must accomplish：Seedling to when not waiting, when also to be poured water conditioning to not grade seedling, heading flowering period,
Pustulation period, dry dry and wet was wet, and 7 days natures of cutting off the water supply fall dry before harvesting.
D, prediction of flowering period and regulation
Flower synchronization index：Ideal flower chance standard：Maternal beginning fringe is earlier than 1~2d of male parent.Prediction of flowering period based on leaf age,
Supplemented by growing way appearance, young fringe stripping is looked into verify, two be that the production of hybrid seeds adjusts flower measure to avoid control measure as far as possible based on promoting.
Flowering regulation：When Parent enters panicle primordium dif ferentiation stage, start every 3d, carrying out stripping to different type plot looks into children
Fringe, every general continuous stripping 10 male parents of inspection and 10 female parents.Ear differentiation stage of father and mother's in-group determines with 50%~
60% plant reaches some differentiation period and is defined.Observation compare Parent ear differentiation process, with female parent than early male parent 1~
2d is standard, such as finds deviation number of days more than more than 3 days, should take regulation measure, and the phase of ear differentiation I~III regulates and controls father with rich water
The maternal growth of this promotion preferably, as male parent is fast, should discharge water and put field, while maternal apply potassium dihydrogen phosphate 10g/667m partially2, it is watered
20kg even sprayings.If male parent is partially slow, it should pour water and promote male parent growth.
E, production of hybrid seeds ancillary method
Cut leaf：Maternal sword-like leave is shorter, and bag neck is lighter, and beginning ear period can scotch leaf, prescinds the 1/4~1/5 of sword-like leave length.
Spray growth regulator：In the case of Parent flower synchronization, for the first time during maternal heading 5%, Parent is every
667m292 〇 10~15g of amount are sprayed simultaneously for the first time, every other day second of dosage 12~16g, 4d third time, per 667m2
With 4~8g, each usage time and dosage will also according to group size, temperature height, whether rain to determine, " 92 〇 " with
It is maternal that bag neck, male parent flower position are not higher than 20~30cm of flower of female parent position substantially.
After gibberellin pulvis is dissolved with a small amount of white wine in advance, 20kg is watered, with knapsack sprayer even spraying, when spraying
Field keeps 6cm water layer, and shower nozzle is from fringe layer 30cm or so.
E, artificial pollination：When father, female parent bloom 10%, two people respectively hold plastics tightrope one end and drawn along with row to vertical direction
Rope is run, and allows rope to be slipped over rapidly on Parent fringe layer, maternal dew of first rushing every morning, promotes its prematurity；In father
This loose powder peak period carries out catching up with powder for the first time, is spaced 0.5h, then catches up with 1 time, and about 5~6 times daily, catching up with should grasp " together during garland powder
Step, light pressure, fast drawing " is carried out, and positive and negative both direction is alternately.
F, disease pest and weed is prevented and treated：In disease pest and weed preventing and treating, using control and biological control is changed, used safely by pollution-free food
Standard (GB285-89, GB8321.2-87, GB8321-89 and the provisions of the relevant regulations issued by the State) applying pesticides, reduce environmental pollution with it is residual
Stay.
Prevention and control of weeds：5~7d after rice transplanting, per 667m2Add 60% butachlor ec 60g with 10% Nongdeshi pulvis 10g, add
Sand or fine earth 300kg mixing are applied, and keep 5~7d of 3cm water layers.
The prevention and control of plant diseases, pest control：Add love seedling (30% benzene first propiconazole emulsifiable concentrate 15 when first time and second are with " 92 〇 "
~20ml/667m2), go out black spirit (the more wettable powder 220g/667m of 18.7% alkene2) etc. medicament.Prevent and treat rice sheath blight disease, rice
Bent disease and rice kernel smut.5 days or so July, 1.8% 2500 times of abamectin emulsifiable concentrate liquid~3000 times liquid, even spraying or
With 5% 30~40ml/667m of Frontline suspending agent2.Prevent and treat rice-stem borer.
H, roguing
Nursery period, should pull out tall and big hybrid strain according to leaf sheath color, leaf color, the shape of blade；Tillering stage pulls out tall and big and form
Different hybrid strains；It is the critical period of impurity elimination before and after heading, all kinds of hybrid strains are pulled out in whole field, and hybrid strain rate is controlled within 0.1%；Fill
The slurry maturity period pulls out the strange high miscellaneous shape strain of setting percentage.
5th, seed harvest, processing, storage
Harvest：Breeding of hybrid rice is more due to using hormone, causes male-sterile seed glume to close not tight, easy moisture absorption
Cause head sprouting, influence seed quality.Therefore, under normal temperature, female parent heading is gathered in after 32 days, seed maturity, should be firmly grasped
Opportune time gathers in time, it is ensured that seed quality and yield, avoids losing.After male parent harvest, then to maternal impurity elimination 2 times, pick up
Maternal male parent in the ranks, female parent is received again after waiting inspector's acceptance(check).
Processing：Disposably dried in time after female parent harvest or directly enter low temp dryer drying and arrived within moisture 12.5%.
Selected packaging after drying.
Storage：Seed answers special stock to put, and prevents mechanical admixture, temperature, humidity and the seed quality shape in close observation kind storehouse
Condition.
6th, Seed Inspection method
Sample：Perform crop seeds inspection procedure GB/T3543.2-1995
Cleanliness is analyzed：Perform crop seeds inspection procedure GB/T3543.3-1995
Germination test：Perform crop seeds inspection procedure GB/T3543.4-1995
Authenticity and object innovation：Perform crop seeds inspection procedure GB/T3543.5-1995
Determination of moisture：Perform crop seeds inspection procedure GB/T3543.6-1995
7th, field plot test
Sampling send Hainan to carry out field plot test after seed harvest, and quality reaches GB4404.1-2008 rears and can be used for producing.
Claims (1)
1. a kind of Indica Hybrid Rice combines 6 liang of excellent producing method for seed of No. 2, its maternal and male parent is：Maternal 602S, male parent restorer
HR2；Specific producing method for seed is as follows：
1) base selection：Relatively concentrate in flakes in field；Fertile soil, Drafting Ability is good, and irrigation and drainage are convenient, high yields irrespective of drought or water logging, and illumination is sufficient；
Without quarantine rice pest；
2) condition is isolated：Space isolates or time isolation；The space isolation is to be no different male parent long-grained nonglutinous rice around production of hybrid seeds area in 200m,
Without japonica rice and glutinous rice in 500m；The Different Rice Varieties introduces a collection left for preceding stubble, special seedling field must be effective by some
Measure is removed；Time isolation is seed farm and other rice field florescences outside surrounding male parent stagger more than 25d；
3) seedling：
A, rice seedling bed selects:Make seedbed in the plot that selection physical features is flat, irrigation and drainage are convenient, loosing soil is fertile；
B, seedling raising method:Because the male parent length of time rice seedlings grow is oversize, have ready conditions using ground two sections of pond seedling, otherwise, light seeding is even to broadcast film covering；
Rice seedling bed is with crop field than 1：50；Cultivate more tillers and strengthen seedling, accelerate the leaf emergence rate of male parent；
C, fertilising and seedbed make：Base fertilizer is used sufficient, farm manure is applied more and adds a small amount of quick-acting fertilizer, muck 20kg/ ㎡ add peroxophosphoric acid
75~100g/ of calcium ㎡ add 15~20g/ of urea ㎡ to add potassium chloride 20~30g/ ㎡, and furrow face wants essence to turn over thin rake, and it is ripe to reach Horizon mud；
One week soaked field prior to seeding, water submerged field 5~10cm of soil, the wide 1.4~1.5m of furrow, a width of 25cm~30cm of ditch, ditch depth 15~
20cm；
D, seed treatment：The imidacloprid 15g for adding 10% using 25% " making hectogram " 2ml is watered 5~6kg, and submergence seed needs
48h, then with clear water rinsed clean, drains water, and vernalization at 20~25 DEG C, showing money or valuables one carries unintentionally to sow；
E, sowing time and the amount of broadcasting：One phase male parent sowing on April 27, every 667 ㎡ crop fields sowing quantity 0.6kg, the second stage of male parent is May 8
Day sowing, every 667 ㎡ crop fields sowing quantity 0.85kg, by the enough sowings of furrow, collapsed paddy drowning with plank after broadcasting；
Maternal date of seeding, determines according to the leaf age size of first phase male parent, is sowed before May 30, every mu of crop field sowing quantity 4.5kg, falls
Paddy amount is in 0.375kg/ ㎡；By furrow enough uniformly sowing, paddy of being collapsed after broadcasting, then covered with fine earth, to lose Gu Weidu, wait seedling plate complete
After portion is seeped into water, water is drained；
F, rice seedling bed rich water quality management：Male parent, female parent moisten after broadcasting to holding seedling plate before 3 leaves, and the ditch-water of fine day half, the rainy day drains water, 3 leaves
Upper water seedling plate establishes shoaling layer afterwards；Wean fertilizer is applied during 21 heart of leaf, every 667 ㎡ applies 2~2.5kg of urea；The leaf phase of male parent 4 applies tiller
Fertilizer, every 667 ㎡ urea 3.5kg add potassium chloride fertilizer 4kg, and every 667 ㎡ of 3~4d apply 3.5~4kg of urea before transplanting；
G, rice seedling bed weeding：Liked with 6% rice and be watered 20~30kg with 150ml, every 667 ㎡ in the leaf phase of weeds 2~3 and weeds cauline leaf is entered
Row high concentration is carefully sprayed, and medicine will be got on weeds；Draining before medication, make 2/3 water surface exposed above of weeds cauline leaf, 24h after dispenser
Poured water in 72h, keep 3~5cm water layers, 5~7d；
H, the prevention and control of plant diseases, pest control
Rice seedling bed initial stage, 50kg even sprayings preventing and treating rice blast is watered with 20% tricyclazole 100g/667 ㎡；3~4d is used before transplanting
5% Frontline 50g/667 ㎡ add 10% imidacloprid 40g/667 ㎡, are watered 40kg even sprayings；
4) the crop field production of hybrid seeds
Plough：Production of hybrid seeds plot selection water project situation is good, and irrigation and drainage are convenient, and sunny, pest and disease damage is few, fertile soil, traffic convenience；
It should in time plough and sun the earth which has been ploughed up after preceding crop harvest, transplanting the last week upper water, harrow a field smooth wait rice transplanting after rotary tillage；
The field-transplanting date：Two phase male parent transplantings on June 15, all transplanting terminates before maternal June 20, ensures parent's beginning ear period
Before August 20 days, reduce the maternal probability that low temperature effect is met in fertility-sensitive period；
Field-transplanting specification：The row ratio of Parent requires 1:11~12, railway carriage or compartment 2.0~2.1m of breadth, male parent is first planted during transplanting, is planted
Specification spacing in the rows is 15cm, and the phase of same old farmer sheet one has inserted, then inserts the second phase, and two phase of single file male parent plants ratio 3~4：3, often
667 ㎡ plant 2200 caves, plant sufficient Basic Seedling 0.8~1.0 ten thousand；Male parent plants female parent for 5 days after planting, Parent is planted at intervals of 30cm, female parent
It is 13.3cm × 15cm to insert specification, and every 667 ㎡ plants 2.2~2.5 ten thousand caves, plants sufficient Basic Seedling 60,000；That payes attention to Parent plants matter
Amount, male parent will descend westerly zone mud to plant；Female parent wants surface planting, keep-alive, promotees fast hair；
Field management：Including fertilizer application plus composite fertilizer, temperature observation and water starch management；The fertilizer application requirement uses sufficient base
Fertilizer, tillering fertilizer is early applied, add ear manuer；Accomplish preceding weight, middle control, rear benefit；N P and K is used cooperatively, leveling field of being raked the soil level after fertilising,
Every 667 ㎡ of 2~3d apply urea and each 4~5kg of Diammonium phosphate (DAP) partially after male parent transplanting；Latter thorough field, which is planted, in female parent imposes rush tiller
Fertilizer, ear manuer use will determine Dressing date and quantity according to growth of cereal crop seedlings growing way and flower chance situation；The temperature is observed with water starch management
During maternal ear differentiation 3~6, temperature Change is paid close attention to；Watch that weather forecast and observation temperature are live daily, it is per day
Temperature is less than 23.5 degree or minimum temperature is less than 20 degree, takes draining on daytime immediately, and night fills deep water 20cm Insulation, carried
The temperature of high young fringe portion position, actively prevents low temperature transformation；Tillering stage thin water frequent irrigation, shallow water promote tiller, and putting field must accomplish：Seedling arrives
When not waiting, when to seedling is not waited, heading flowering period will also pour water conditioning, and the pustulation period, dry dry and wet was wet, 7 days natures of cutting off the water supply before harvesting
Fall dry；
Prediction of flowering period and regulation：Including ideal flower chance standard and flowering regulation；The maternal beginning fringe of the preferable flower chance standard earlier than
1~2d of male parent；Prediction of flowering period is based on leaf age, and supplemented by growing way appearance, the stripping of young fringe is looked into verify, two be the production of hybrid seeds adjust flower measure with
Based on rush；The flowering regulation is when Parent enters panicle primordium dif ferentiation stage, is started every 3d, carrying out stripping to different type plot looks into
Young fringe, every continuous stripping 10 male parents of inspection and 10 female parents；The ear differentiation stage of father and mother's in-group is determined with 50%~60%
Plant reach some differentiation period and be defined；Observation compare Parent ear differentiation process, using female parent than early 1~2d of male parent as
Standard, deviation number of days such as being found more than more than 3 days, should taking regulation measure, the phase of ear differentiation I~III is promoted with rich water regulation and control male parent
Enter maternal growth preferably, as male parent is fast, should discharge water and put field, while maternal apply potassium dihydrogen phosphate partially；If male parent is partially slow, should fill
Water promotes male parent growth；
Production of hybrid seeds ancillary method：Including cutting leaf, growth regulator being sprayed after leaf is cut；
Artificial pollination：When father, female parent bloom 10% when artificial pollination；
Disease pest and weed is prevented and treated：In disease pest and weed preventing and treating, using control and biological control is changed, applied by pollution-free food standards for safe use
With agricultural chemicals, reduce environmental pollution and remain；
Roguing：Nursery period, should pull out tall and big hybrid strain according to leaf sheath color, leaf color, the shape of blade；Tillering stage pulls out tall and big
The hybrid strain different with form；It is the critical period of impurity elimination before and after heading, all kinds of hybrid strains are pulled out in whole field, and hybrid strain rate is controlled 0.1%
Within；Grouting parameter pulls out the miscellaneous shape strain that setting percentage is higher than normal plant；
5) seed harvest, processing, storage：
Harvest：Maternal breeding of hybrid rice gathers in after earing 32 days, it is ensured that seed quality and yield, avoids losing；Male parent harvests
Afterwards, then to maternal impurity elimination 2 times, pick up maternal male parent in the ranks, female parent is received again after waiting inspector's acceptance(check)；Processing：Female parent is received
Disposably dried in time after obtaining or directly enter low temp dryer drying and arrived within moisture 12.5%；Selected packaging after drying；Storage：
Seed answers special stock to put, and prevents mechanical admixture, temperature, humidity and the seed quality situation in close observation kind storehouse.
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| CN104396650A (en) * | 2014-11-17 | 2015-03-11 | 成都红柿子科技有限公司 | Rice planting method |
| CN104663422B (en) * | 2015-02-05 | 2016-12-07 | 广德县农业科学研究所 | A kind of producing method for seed of hybrid rice |
| CN104885839A (en) * | 2015-07-03 | 2015-09-09 | 巢湖市农业技术推广中心 | High-yield cultivation method of one-season medium indica hybrid rice |
| CN104885838A (en) * | 2015-07-03 | 2015-09-09 | 巢湖市农业技术推广中心 | Field cultivation method of one-season medium indica hybrid rice |
| CN105145334A (en) * | 2015-07-10 | 2015-12-16 | 江苏省徐州大华种业有限公司 | Seed selection method of new rice species |
| 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 |
| CN106717305A (en) * | 2016-11-28 | 2017-05-31 | 安徽华安种业有限责任公司 | A kind of method for preventing and treating Achlya spp disease |
| CN108323392A (en) * | 2018-02-09 | 2018-07-27 | 四川益邦种业有限责任公司 | A kind of method of the big field tectorial membrane intensified culturing production paddy rice cross breeding seed of seedbed nursery |
| CN108849333A (en) * | 2018-06-28 | 2018-11-23 | 定远县鑫理想农业科技有限公司 | A kind of high yield paddy rice planting method |
| CN110122230A (en) * | 2019-06-14 | 2019-08-16 | 湖南省宝满科技开发有限公司 | A method of improving paddy rice cross breeding seed quality |
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| 江苏省第五十三次农作物品种审定会议审定通过的主要农作物新品种介绍;江苏省农业委员会;《江苏省农业委员会公告》;20130530;第4-5页 * |
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