CN106034775A - Method for evaluating auxiliary rice breeding by using lodging resistance indexes - Google Patents
Method for evaluating auxiliary rice breeding by using lodging resistance indexes Download PDFInfo
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- CN106034775A CN106034775A CN201610400743.7A CN201610400743A CN106034775A CN 106034775 A CN106034775 A CN 106034775A CN 201610400743 A CN201610400743 A CN 201610400743A CN 106034775 A CN106034775 A CN 106034775A
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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
- A01G7/00—Botany in general
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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Abstract
The invention discloses a method for evaluating auxiliary rice breeding by using lodging resistance indexes. Through good parent hybridization matching, an F1 hybrid filial generation is obtained, and through field selection and multiple generation purification, a stable strain is obtained. Through new strain selection, new strain raised-seedling transplanting single plant transplanting, average tiller number determination, strain sampling, single plant pressure and intensity determination, bending moment determination, and bending resistance force determination, and lodging indexes are calculated, so that the breeding quality is evaluated; and varied factors of the yield, the resistance, the rice quality, the lodging resistance and the like of new strains in comparison tests are synthesized, so that new strains are cultivated, the lodging resistance indexes are quantified, and anthropogenic factors are eliminated.
Description
Technical field
The present invention relates to a kind of rice breeding method, utilize index assessment resistant to lodging to assist rice breeding particularly to one
Method.
Background technology
Large area direct sowing of rice can save a large amount of labour, alleviates the contradiction that labour's seasonality is nervous, to realizing Rice Production
Lightness, specialization, scale have great significance, there is wide promotion prospect.But it is compared with transplanting rice, live
There is difficult full stand, crop smothering weight, easily lodge Three Difficult Issues in Oryza sativa L., prior art is typically all enhances field management, it is impossible to from all
The problem of upper solution rice lodging.
Ripe moderate japonica rice area 15,000,000 mu in whole Huaibei district of Jiangsu province, Oryza sativa L. gently simplifies direct sowing culture area increasingly
Greatly, rice root is shallow, the corresponding deviation of lodging tolerance, the most annual typhoon influence, and rice lodging problem increasingly becomes to be worked as
Outstanding problem in front production.Therefore, rice varieties popularization and application on producing that selection-breeding is resistant to lodging are significant.
The nasal mucus rice series of products being bred as at present has the features such as quality fringe excellent, big, big grain, grouting are fast, on northern Suzhou, Jiangsu, mountain
There are larger area popularization and application on the ground such as the southeast and Henan.The nasal mucus rice 785 of authorization in particularly 2013 substantially has big fringe
The superelevation such as (number of grain per ear about 150), big grain (mass of 1000 kernel about 29 grams), the many percentage of earbearing tiller of tiller high (every mu spike number 210,000)
Produce quantitative trait, but owing to plant is higher, plant height 107 about cm, in production, application risk is relatively big, at 2014 long-time low temperature
Overcast and rainy, violent typhoon comes again early, and lodging is very serious, brings the biggest loss to popularization and application peasant household.
So selecting the breeding population of the variation individuality that lodging resistance is strong in the breeding process of Oryza sativa L. and from breeding population
Middle this excellent variation individuality differentiates, selects, and is bred expansion, finally cultivates a successfully new Oryza sativa L. excellent
Non-defective unit kind is problem demanding prompt solution.Tradition judges that lodging resistance in rice ability is mainly naked eyes field observation, does not has quantitative criteria,
Can only by be roughly classified into incline, tiltedly, the rank such as volt, this judgment mode is objectively easily affected by envirment factors such as typhoons, main
Easily affected by anthropic factor in sight.
Summary of the invention
For solving the problem of rice lodging, the present invention proposes and a kind of utilizes index assessment resistant to lodging auxiliary rice breeding
Method.
A kind of rice breeding method based on lodging index assisting sifting, by existing parents combo, it is thus achieved that F1Son
In generation, select and many for purification through field, it is thus achieved that stablize strain, then go out excellent strain through variety comparative test final election, it is characterized in that including
Following steps:
1) selection of variety comparative test strain is participated in
2) the new lines individual plant participating in test is transplanted
3) sample labeling is carried out according to pustulation period number of productive ear
4) field stem stalk fracture resistence force measures
5) bending moment measures
6) internode fracture resistence force measures
7) lodging index calculates
8) Comprehensive Traits weighting evaluation
Step 1) is participated in the selection of variety comparative test strain and is referred to identify that garden selects plant height to have at about 100 cm at stable advanced lines
Have a new lines of high yield struture, sowing 0.2 kg, enter indoor rice matter and identify, final election chalky grain rate less than≤30%, transparency good
New lines, participate in step 2).
Step 2) the new lines individual plant of final election is transplanted, every community 13.3 m2, 8 row districts, often row 50 strain；Fertilizer application: complete
Period of duration converts into mu and executes pure N 18 kg, P2O5 8 kg、K2Before and after O 8 kg, N fertilizer, phase ratio is 6:4；Water starch management: Bao Shuiyi
Planting, alive of deep water, shallow water tiller, wait fringe Seedling time control water to put field, later stage dry and wet is wet, records the growing process of each strain, accurate
Really record beginning fringe full heading time.
The each strain of step 3) is drawn a circle to approve 50 strains in addition to protection row continuously in 28 days after neat fringe and is carried out effective fringe investigation, calculates this product
Individual plant average effective spike number (being designated as n) of system.Choose wherein representative plant 5 strain according to generaI investigation individual plant average effective spike number to carry out
Listing mark.
The each strain of step 4) is to completing the plant that spike number is generally investigated, and in addition to 5 strains of listing mark, remaining part randomly selects
30 strains measure Oryza sativa L. individual plant stem stalk field fracture resistence force with hand-held YYD-B type straw stiffness analyzer: at overhead 20 cm to be
Force horizontal sliding plant, record plant is poured onto with vertical direction angle respectively is thrust when 45 ° and 60 °, takes 30 strain meansigma methodss
It is the field individual plant stem stalk fracture resistence force (F of this strainp, unit: N) and this strain list can be calculated further according to the average spike number of generaI investigation
Stem fracture resistence force (FS, unit: N).
Fs=Fp ÷ n (1)
Fs:Force of single stem mono-stem fracture resistence force
Fp:Force of plant individual plant stem stalk fracture resistence force
The n:Panicle number per average spike number of plant individual plant
Step 5) each strain field fracture resistence force measures after terminating, and band soil takes 5 strain Oryza sativa L. of listing mark in step 3 and is placed in bucket
In take back indoor, note preventing plant damage and dehydration.5 strain sample Seedlings are cleaned and removes root, randomly select wherein 15 single stems, will
It is decomposed into spike of rice, reciprocal 1st, 2,3,4,5 internodes (under fringe, the first internode is 1 internode, and the rest may be inferred), measure each portion respectively
Point length and fresh weight, and calculate as required different internode base portion to the length (L, unit: cm) on fringe top and fresh weight (W, unit:
G), rapids ancient elegant raw according to Japanese scholars[1]Method calculate reciprocal 3rd, 4,5 internodes (three joints of Culm of Rice frangibility
Between) bending moment (M, unit: N cm).Computing formula is as follows:
M=L × W × 0.001 × g (1)
M:Moment of force bending moment (N cm)
L:Length internode base portion is to the length (cm) on fringe top
W:Weight difference internode base portion is to the fresh weight (g) on fringe top
0.001: SI units conversion coefficient, g is converted to kg
G:Gravitational acceleration acceleration of gravity, value 9.8(m/s of the present invention2)
Step 6) by step 5 is decomposed and completes inverse that length and fresh weight measure the 3rd, 4,5 internodes, be respectively placed in YYD-
Under 1 type analyzer resistant to lodging, adjust strong point spacing (being designated as l, unit: cm) according to internode length, by instrument handle to joint
Between midpoint apply pressure, when stem stalk fractures, (instrument can record the pressure of the moment that fractures automatically to read the fracture resistence force of each internode
Power), (being designated as Fi, unit: N).Owing to when different internodes measure, strong point spacing may be different, in order to seek unity of standard, the present invention
By rapids for Japanese scholars ancient elegant raw[1]Assay method improve, it is proposed that the concept of " unit length internode fracture resistence force " (is designated as
Fu, unit: N), computing formula is:
Fu=Fi × l (1)
Fu:Force of internode per unit unit internode fracture resistence force (N)
Fi:Force of internode internode fracture resistence force (N)
Strong point spacing (cm) when l:Length of bracing point internode fracture resistence force measures
The each strain of step 7) according to said determination data calculate reciprocal 3rd, 4, the lodging index (LI) of 5 internodes.Lodging index is more
Greatly, then plant the most easily lodges, and in conjunction with field actual observation result, lodging index is divided into three grades by the present invention: LI≤20 are height
Anti-, anti-in 20 ＜ LI≤40, LI ＞ 40 is easily lodging, answers the prioritizing selection lodging index Gao Kangpin less than 20 in breeding practice
System.Lodging index computing formula after improving according to the rapids ancient elegant generation method of Japanese scholars is as follows:
LI=M ÷ (Fi × l) × 100 (1)
LI:Lodging Index lodging index
The M:Moment of force present invention refers in particular to bending moment (N cm)
Fi:Force of internode internode fracture resistence force (N)
Strong point spacing (cm) when l:Length of bracing point internode fracture resistence force measures
100: amplification coefficient
Step 8) is according to current rice breeding background, in numerous biological characters, and the big property of disease resistance, lodging resistance, yield and meter Zhi Si
Shape is topmost evaluation index, new lines disease resistance (the panicle blast inoculated identification comprehensive resistance index of final election in variety comparative test
Below 5.0), lodging resistance (lodging index value be less than 20), yield (with compareing quite or increasing production), rice matter (chalky grain rate < 30%,
National best more than three grades) must be up to standard.In order to further quantitatively evaluating is participated in the experiment the general performance of new varieties (being), this method carries especially
Go out the concept of " precedence weighted integral " with Optimum Synthesis ranking, i.e. according to four big evaluation index weights in breeding evaluation system
In testing, the precedence of the different index of each tested variety (being) is by certain weight summation.Precedence weighted integral is the lowest, comprehensively arranges
Name is the most forward.Computing formula:
RP=NB × 0.3+LI × 0.3+GY × 0.2+GQ × 0.2 (1)
RP: precedence weighted integral
NB:Neck Blast panicle blast comprehensive resistance index precedence
LI:Lodging Index lodging index precedence
GY:Grain Yield yield precedence
GQ:Grain Quality rice matter precedence
Remaining index determining method:
Panicle blast comprehensive resistance index: comment with resistance with reference to DB32/T 1123-2007 rice varieties (being) anti-rice blast authentication method
Valency technical regulation
Yield: DB32/T 1093-2015 rice yield on-site measurement rule of operation
Meter Zhi: The Ministry of Agriculture of the People's Republic of China, MOA's ministerial standard rice matter assay method
Affect the resistant to lodging a lot of because have of Oryza sativa L., easily lodging property contribution maximum is mainly plant fresh weight, plant height and
The fracture resistence force of basal internode, the present invention is a kind of rice breeding method based on lodging index assisting sifting, and its core content is
Oryza sativa L. individual plant stem stalk fracture resistence force is measured at field YYD-1B plant stem intensity meter in the new lines comparative test stage going out garden,
Lodging In Rice, the two evaluation test data new lines comprehensive is measured in conjunction with indoor YYD-1 type plant haulm intensity measuring device
Lodging tolerance.
By a kind of based on lodging index assisting sifting the rice breeding method of the invention described above, can quantitative analysis Oryza sativa L.
The lodging tolerance of new lines, disease resistance in comprehensive new lines comparative test (inoculated identification comprehensive resistance index 5.0 with
Under), lodging resistance (lodging index be less than 40), the many-side such as yield (with compare quite or increasing production) and rice matter (chalky grain rate < 30)
Factor, the excellent new rice variety that final election Comprehensive Traits is prominent, not only decrease the blindness of rice breeding, and cultivate
New rice variety, has wider adaptability and anti-adversity ability.This new auxiliary water rice breeding method, simple and easy to do, operation
Convenient, have broad application prospects.
Tradition judged that lodging resistance in rice ability was mainly naked eyes field observation in the past, did not had quantitative criteria, can only be by rough
Be divided into incline, tiltedly, the rank such as volt, this judgment mode is objectively easily affected by envirment factors such as typhoons, subjective easily by people
For Effects of Factors；And this method uses the qualitative assessment of lodging index, it is possible to resisting of the accurate different rice new strain of objective judgement
Could power, more preferable assisting sifting excellent strain.
Detailed description of the invention
Final election is set forth below and goes out the specific implementation process of new lines 15-89
1) selection of variety comparative test new lines, is participated in
Identifying that garden selects the stable advanced lines material with more than high yield struture F5 at stable advanced lines, each strain list is received single
De-, enter indoor rice matter and identify, the strain that final election chalky grain rate≤30%, transparency are good, 20 parts of materials of final election go successively to next year
Degree variety comparative test.
2), participate in variety comparative test new lines individual plant to transplant
The new lines culturing and transplanting seedlings individual plant of final election is planted, each community 13.3 m2, 8 row districts, often row 50 strain；Fertilizer application: complete
Period of duration converts into mu and executes pure N18 kg, P2O5 8 kg、K2Before and after O 8 kg, N fertilizer, phase ratio is 6:4；Water starch management: Bao Shuiyi
Planting, alive of deep water, shallow water tiller, wait fringe Seedling time control water to put field, later stage dry and wet is wet, the fertility of each testing line of complete documentation
Process, wherein product are 8/24-29 day than code name is 89 new lines heading stage, go out garden number and are set to new lines 15-89.
3), the mensuration of number of productive ear and sample labeling
Point different lines after neat fringe 28 days, involves in a criminal case from limit row the 3rd row the 3rd and continuous selects 50 strains to count effective fringes, take its meansigma methods,
The average effective fringe obtaining this strain is 9.3；Choose 5 close with average effective spike number individual plant, listing mark.
4), field stem stalk fracture resistence force measures
Each strain is to completing the plant that spike number is generally investigated, and in addition to 5 strains listed, remaining part randomly selects 30 strains all with hand-held
YYD-B type straw stiffness analyzer measures Oryza sativa L. individual plant stem stalk field fracture resistence force: plant for impetus horizontal sliding at overhead 20 cm
Strain, record plant is poured onto with vertical direction angle respectively is thrust when 45 ° and 60 °, takes 30 strain meansigma methodss and is this strain
Field individual plant stem stalk fracture resistence force (Fp, unit: N), take 30 strain meansigma methodss and be the field individual plant stem stalk fracture resistence force (list of this strain
Position: N), sample mean result is shown in table 1.Can calculate this strain list stem fracture resistence force further in conjunction with generally investigating average spike number, sample is put down
All results are shown in table 2.
From Tables 1 and 2,15-89 plant horizontal sliding is tilted to thrust used by 45 ° and 60 ° and is averagely respectively 22.1 N
With 33.1 N, occupying the 2nd of 20 kinds (being), place's upstream level, single stem fracture resistence force is consistent with individual plant fracture resistence force ranking.Explanation
New lines 15-89 stem stalk fracture resistence force is stronger.
20 kind (being) field individual plant stem stalk fracture resistence forces of variety comparative test participated in by table
20 kind (being) field list stem fracture resistence forces of variety comparative test participated in by table 2
5), bending moment measures
Each strain field fracture resistence force measures after terminating, and band soil takes residue 5 strain Oryza sativa L. and is placed in bucket and takes back indoor, notes preventing
Plant damage and dehydration.5 strain plant are cleaned and remove root, randomly select 15 single stems, be broken down into spike of rice, reciprocal 1st, 2,3,
4,5 internodes (under fringe, the first internode is down 1 internode, and the rest may be inferred), measures each several part length (L: unit: cm) and fresh weight respectively
(W: unit: g), according to formula M=L × W × 0.001 × g calculate reciprocal 3rd, 4,5 internodes (three joints of Culm of Rice frangibility
Between) bending moment (M, unit: N cm).Sample mean result is shown in table 3.
As shown in Table 3, new lines 15-89 bending moment is 2nd reciprocal of row in 20 kinds (being) participated in the experiment, and belongs to anti-
Plant type.
20 kind (being) bending moments and the Components thereof of variety comparative test participated in by table 3
6), internode fracture resistence force measures
Previous step is decomposed and completes inverse that length and fresh weight measure the 3rd, 4,5 internodes, be placed in the survey resistant to lodging of YYD-1 type
Determine to adjust under instrument strong point spacing (l:, unit cm), be downwardly applied to pressure by instrument handle, when stem stalk fractures, read
The fracture resistence force of each internode (instrument records the pressure of the moment that fractures, Fi: unit: N automatically).Calculate single according to formula F u=Fi × l
Bit length internode fracture resistence force (Fu: unit: N), result is as shown in table 4.
As shown in Table 4, new lines 15-89 is fallen 3,4,5 unit length internode fracture resistence forces and is respectively 63.2,98.7,117.3
N, average out to 93.1 N, be listed in the second of 20 tested varieties (being), and lodging resistance is stronger.
20 kind (being) unit length internode fracture resistence forces of variety comparative test participated in by table 4
7), lodging index calculates
Each strain calculates lodging index result according to formula LI=M ÷ (Fi × l) × 100 and is shown in table 5.As seen from table, new lines
Tri-basal internode lodging numerical value of 15-89 are respectively 13.8,12.6 and 11.9 N, average out to 12.8N, and three internodes are in height
Anti-scope (LI≤20), consistent with field individual plant and single stem fracture resistence force (occupying the 2nd, be shown in Table 1) result, further illustrate new lines
15-89 lodging tolerance is stronger.
20 kind (being) each basal internode lodging index of variety comparative test participated in by table 5
8), strain overall merit
In conjunction with current rice breeding background, in numerous biological characters, disease resistance (especially panicle blast), lodging resistance, yield and rice
The big character of matter four is topmost evaluation index, and 20 kind (being) the Comprehensive Traits results participating in variety comparative test are shown in table 6.
As seen from table, the 15-89 panicle blast comprehensive resistance index that final election goes out is ranked first, and lodging resistance ranking 2(lodging refers to
Number low), yield ranking the 3rd, rice matter is ranked first (mainly chalk rice rate), according to formula RP=NB × 0.3+LI × 0.3+GY ×
Calculating precedence weighted integral=2,0.2+GQ × 0.2 ×0.3+2×0.3+3×0.2+1×0.2=1.9, being ranked first, (integration is the lowest
Ranking is the highest).
20 kind (being) integrating shapes and the precedence of variety comparative test participated in by table 6
Claims (10)
1. a rice breeding method based on lodging index assisting sifting, by existing parents combo, it is thus achieved that F1Hybridization
Kind, select and many for purification through field, it is thus achieved that stablize strain, then go out excellent strain through variety comparative test final election, its feature include as
Lower step:
1) selection of variety comparative test strain is participated in
2) the new lines individual plant participating in test is transplanted
3) sample labeling is carried out according to pustulation period number of productive ear
4) field stem stalk fracture resistence force measures
5) bending moment measures
6) internode fracture resistence force measures
7) lodging index calculates
8) Comprehensive Traits weighting evaluation.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The step 1) stated is participated in the selection of variety comparative test strain and is referred to identify that garden selects plant height to have at about 100 cm at stable advanced lines
There is a new lines of high yield struture, sowing 0.2 kg, enter indoor rice matter and identify, good new of final election chalky grain rate≤30%, transparency
Strain, participates in step 2).
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The step 2 stated) the new lines individual plant of final election is transplanted, every community 13.3 m2, 8 row districts, often row 50 strain；Fertilizer application: entirely give birth to
Phase converts into mu and executes pure N 18 kg, P2O5 8 kg、K2Before and after O 8 kg, N fertilizer, phase ratio is 6:4；Water starch management: Bao Shui transplants, deeply
Alive of water, shallow water tiller, wait fringe Seedling time control water to put field, later stage dry and wet is wet, records the growing process of each strain, accurate recording
Beginning fringe, full heading time.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The step 3) stated refers to that each strain is drawn a circle to approve 50 strains in addition to protection row continuously in 28 days after neat fringe and carried out effective fringe investigation, calculates this product
The individual plant average effective spike number of system, chooses wherein representative plant 5 strain according to generaI investigation individual plant average effective spike number and carries out mark of listing
Note.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The step 4) field stem stalk fracture resistence force stated measure refer to each strain to completing the plant of spike number generaI investigation, in addition to 5 strains of listing mark,
Remaining part randomly selects the hand-held YYD-B type straw stiffness analyzer of 30 strains and measures Oryza sativa L. individual plant stem stalk field fracture resistence force.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The step 5) bending moment stated measures after referring to that each strain field fracture resistence force mensuration terminates, and band soil takes listing mark in step 3
5 strain Oryza sativa L., randomly select wherein 15 single stems, survey bending moment.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
It is will to decompose and complete length and the inverse the 3rd, 4,5 of fresh weight mensuration in step 5 that the step 6) internode fracture resistence force stated measures
Internode, is respectively placed under YYD-1 type analyzer resistant to lodging, according to internode length adjust strong point spacing, by instrument handle to
Internode midpoint applies pressure, when stem stalk fractures, reads the fracture resistence force of each internode, measures unit length internode fracture resistence force.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The each strain of step 7) stated according to said determination data calculate reciprocal 3rd, 4, the lodging index of 5 internodes, select lodging index low
The anti-strain of height in 20.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 1, it is characterised in that institute
The step 8) Comprehensive Traits weighting evaluation stated refers to the big character of disease resistance, lodging resistance, yield and meter Zhi Si, final election in variety comparative test
New lines disease resistance: panicle blast inoculated identification comprehensive resistance index is below 5.0, lodging resistance: lodging index value less than 20, produce
Amount: with compare quite or increase production, meter Zhi: chalky grain rate≤30%, national best more than three grades, preferably arrange by " precedence weighted integral " method
The forward strain of name.
A kind of rice breeding method based on lodging index assisting sifting the most according to claim 9, the phase is characterised by institute
" precedence weighted integral " method stated is: RP=NB × 0.3+LI × 0.3+GY × 0.2+GQ × 0.2
RP: precedence weighted integral
NB: panicle blast comprehensive resistance index precedence
LI: lodging index precedence
GY: yield precedence
GQ: rice matter precedence.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241786A (en) * | 2018-01-11 | 2018-07-03 | 安徽省农业科学院水稻研究所 | A kind of lodging resistance in rice merit rating method |
| CN109258357A (en) * | 2018-09-21 | 2019-01-25 | 福建省农业科学院水稻研究所 | A method of the low stake regeneration power of measurement rice |
| CN110024580A (en) * | 2019-04-28 | 2019-07-19 | 黑龙江省农业科学院耕作栽培研究所 | A method of measurement plant different type root system power resistant to lodging |
| CN110073969A (en) * | 2019-05-16 | 2019-08-02 | 湖南杂交水稻研究中心 | A method of rice breeding is assisted using index resistant to lodging |
| CN110214657A (en) * | 2019-07-23 | 2019-09-10 | 黑龙江省农业科学院绥化分院 | A kind of building method in rice breeding " disease-resistant, anti-fall " two gardens unification identification garden |
| CN112396227A (en) * | 2020-11-16 | 2021-02-23 | 安徽省农业科学院水稻研究所 | Method for measuring and evaluating lodging resistance of rice variety |
| CN112525687A (en) * | 2020-11-26 | 2021-03-19 | 甘肃农业大学 | Method for identifying lodging resistance of cabbage type winter rape by using improved lodging coefficient |
| CN116746438A (en) * | 2023-06-19 | 2023-09-15 | 安徽荃银超大种业有限公司 | Method and system for assisting rice breeding by using lodging-resistant index |
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| CN112396227B (en) * | 2020-11-16 | 2023-08-18 | 安徽省农业科学院水稻研究所 | Rice variety lodging resistance determination and evaluation method |
| CN112525687A (en) * | 2020-11-26 | 2021-03-19 | 甘肃农业大学 | Method for identifying lodging resistance of cabbage type winter rape by using improved lodging coefficient |
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