CN109932492A - A kind of Arid Regions of Northern spring maize drought resistance rapid identification method - Google Patents
A kind of Arid Regions of Northern spring maize drought resistance rapid identification method Download PDFInfo
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- CN109932492A CN109932492A CN201910341579.0A CN201910341579A CN109932492A CN 109932492 A CN109932492 A CN 109932492A CN 201910341579 A CN201910341579 A CN 201910341579A CN 109932492 A CN109932492 A CN 109932492A
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Abstract
The invention discloses a kind of Arid Regions of Northern spring maize drought resistance rapid identification methods, are related to technical field of agriculture science.The method of the present invention including the following steps: Step 1: the seedling of spring maize kind to be identified is selected to carry out arid field ecological region planting, while control group is set；Step 2: measuring 6-9 form or ecology or physical signs, then pass through surveyed Index Establishment drought resisting appraisement system in spring maize jointing stage or tasseling stage or pustulation period；Step 3: intuitively identifying using first field, then method for measuring is tested, Rapid identification and evaluation are carried out to the drought resistance of the region spring maize kind.The present invention provides reliable basis for maize production variety selection, is close to production practical study, operates practical, only not existing high-yield corn planting technology and provides Research foundation, also has broad application prospects in production.
Description
Technical field
The invention belongs to technical field of agriculture science, more particularly to a kind of Arid Regions of Northern spring maize drought resistance Rapid identification
Method.
Background technique
In northern China drought-hit area, arid is the main reason for causing corn yield low and unstable, and selects be suitable for resist
Drought corn variety, and be the main approach to solve the above problems, therefore accurately comment corn variety drought resisting sexology
Valence is that suitable spring maize kind is selected to first have to solve the problems, such as.
According to statistics, arid and semi-arid area accounts for about the 34.9% of earth land area in the world, accounts for cultivated area
42.9%, and the land area in Chinese inclined nonirrigated farmland area arid, semiarid and semi-moist accounts for about the 52.5% of territory total area.China
It is world's second largest maize production state, total yield and per unit area yield have been more than wheat, are only second to rice, leap to Grain in China crop production
Second.Corn is to the more sensitive crop of moisture.Some researches show that corn was often suffered from drought one day at after planting 50 days or so, was put down
The equal underproduction 3%；It takes out hero often to suffer from drought to the phase of reeling off raw silk from cocoons one day, average underproduction 6%-7% at most can the underproduction 13%；Kernel grouting initial stage
The average underproduction 49%.Therefore, cultivating and selecting high yield drought-resistant variety is to resist one of most economical method of drought stress.
Currently, it for drought resistance of maize identification method, disconnects using the more of indoor and potting research, but with production, and
Application not easy to operate, and field research was focused mostly in entire breeding time, and due to regional climate difference, applicability is also poor,
Therefore it is directed to region, quick, intuitive and easy-operating drought resistance appraising method is studied, is of great significance and acts on.
Summary of the invention
The purpose of the present invention is to provide a kind of Arid Regions of Northern spring maize drought resistance rapid identification methods, solve current life
How miscellaneous corn variety is in production, when the producer's selection region adapted varieties the problems such as blindness.
The present invention is achieved by the following technical solutions:
The present invention is a kind of Arid Regions of Northern spring maize drought resistance rapid identification method, mainly including the following steps:
Step 1: the seedling of spring maize kind to be identified is selected to carry out arid field ecological region planting, while control group is set；
Step 2: 6-9 form or ecology or physical signs are measured in spring maize jointing stage or tasseling stage or pustulation period,
Pass through surveyed Index Establishment drought resisting appraisement system again；
Step 3: intuitively identifying using first field, then method for measuring is tested, the drought resisting to the region spring maize kind
Property carry out Rapid identification and evaluation.
Further, the 6-9 form or ecology or physical signs measured in the step 2 includes: spinning loose powder interval
Phase, plant height, functional leaf leaf area, ear period dry-matter accumulation amount, chlorophyll content, Net Photosynthetic Rate, leaf r elative water content, from
At least six in body leaves water loss rate, water use efficiency.
Further, the drought resisting appraisement system established in the step 2 refers to: with " spinning loose powder interval ", " plant height "
At least one of be preliminary identification index；In " functional leaf leaf area ", " leaf r elative water content ", " Net Photosynthetic Rate "
At least two be secondary identification of indicator；With " ear period dry-matter accumulation amount ", " chlorophyll content ", " excised leaf percentage of water loss ", " water
At least three in point utilization efficiency " be final identification of indicator.
Further, the method for using field intuitively to identify in the step 3 specifically includes: with the drought resisting of foundation
Preliminary identification index in appraisement system is intuitive identification reference index, and preliminary screening goes out the jade of the Arid Regions of Northern spring in the region
Rice kind.
Further, it uses test method for measuring to specifically include in the step 3: being evaluated with the drought resisting of foundation
Secondary identification of indicator in system, screens spring maize kind again, then in the drought resisting appraisement system of foundation
Final identification of indicator carrys out the drought resistance of comprehensive analysis evaluation Arid Regions of Northern spring maize kind.
Further, the functional leaf leaf area, ear period dry-matter accumulation amount, chlorophyll content, Net Photosynthetic Rate, blade
Relative water content, excised leaf percentage of water loss, water use efficiency are measured by acquiring maize leaf sample.
The invention has the following advantages:
The present invention is by specifying that Arid Regions of Northern spring maize jointing stage or tasseling stage or pustulation period are suffered from drought to ultimate output
The underproduction influences maximum while also maximum with the degree of association of Drought Resistance of Variety, this period measures index and method, can be used as this area
The identification of domain spring maize Drought Resistance of Variety and evaluation method provide reliable basis for maize production variety selection, it is practical to be close to production
Research operates practical, only not existing high-yield corn planting technology and provides Research foundation, also has in production wide
Application prospect.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment one
The specific identification method of the present embodiment including the following steps:
Step 1: the good seedling of spring maize breed development to be identified and the well-developed seedling of check variety are selected,
Arid Regions of Northern land of the year natural precipitation less than 350mm is planted, and every kind of kind plants a cell, and every cell plants two rows, cell
Area is 10 ㎡, and emergence water is poured after plantation, so that 0-50cm soil moisture is reached the 80% ± 5% of field capacity, the later period is no longer
Watering, the time of infertility pour water 50 sides/mu altogether；
Step 2: in spring maize jointing stage or tasseling stage or pustulation period, measurement spinning loose powder interval, plant height, function
Leaf leaf area, ear period dry-matter accumulation amount, leaf r elative water content, excised leaf percentage of water loss, water use efficiency, then pass through institute
Survey Index Establishment drought resisting appraisement system；
Step 3: intuitively being identified using field, with " spinning loose powder interval " and " plant height " preliminary identification index, intuitively
Preliminary screening goes out the Arid Regions of Northern spring maize kind in the region；Use test determination again, with " functional leaf leaf area " and
" leaf r elative water content " is secondary identification of indicator, is screened again to spring maize kind, finally with " ear period dry-matter accumulation
Amount ", " excised leaf percentage of water loss ", " water use efficiency " are final identification of indicator, and it is beautiful to carry out the comprehensive analysis evaluation Arid Regions of Northern spring
The drought resistance of rice kind.
Embodiment two
The specific identification method of the present embodiment including the following steps:
Step 1: the good seedling of spring maize breed development to be identified and the well-developed seedling of check variety are selected,
Arid Regions of Northern land of the year natural precipitation less than 350mm is planted, and every kind of kind plants a cell, and every cell plants two rows, cell
Area is 10 ㎡, and emergence water is poured after plantation, so that 0-50cm soil moisture is reached the 80% ± 5% of field capacity, the later period is no longer
Watering, the time of infertility pour water 50 sides/mu altogether；
Step 2: in spring maize jointing stage or tasseling stage or pustulation period, measurement spinning loose powder interval, plant height, function
Leaf leaf area, ear period dry-matter accumulation amount, chlorophyll content, Net Photosynthetic Rate, leaf r elative water content, excised leaf dehydration
Rate, water use efficiency, then pass through surveyed Index Establishment drought resisting appraisement system；
Step 3: intuitively being identified using field, with " spinning loose powder interval " and " plant height " for preliminary identification index, intuitively
Ground preliminary screening goes out the Arid Regions of Northern spring maize kind in the region；Again use test determination, with " functional leaf leaf area ",
" leaf r elative water content " and " Net Photosynthetic Rate " is secondary identification of indicator, is screened again to spring maize kind, finally with
" ear period dry-matter accumulation amount ", " chlorophyll content ", " excised leaf percentage of water loss " and " water use efficiency " is that final identification refers to
Mark carrys out the drought resistance of comprehensive analysis evaluation Arid Regions of Northern spring maize kind.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of Arid Regions of Northern spring maize drought resistance rapid identification method, it is characterised in that: main including the following steps:
Step 1: the seedling of spring maize kind to be identified is selected to carry out arid field ecological region planting, while control group is set；
Step 2: measuring 6-9 form or ecology or physical signs, then lead in spring maize jointing stage or tasseling stage or pustulation period
Cross surveyed Index Establishment drought resisting appraisement system；
Step 3: intuitively identifying using first field, then test method for measuring, to the drought resistance of the region spring maize kind into
Row Rapid identification and evaluation.
2. a kind of Arid Regions of Northern spring maize drought resistance rapid identification method according to claim 1, which is characterized in that described
The 6-9 form or ecology or physical signs measured in step 2 include: spinning loose powder interval, plant height, functional leaf leaf area,
Ear period dry-matter accumulation amount, chlorophyll content, Net Photosynthetic Rate, leaf r elative water content, excised leaf percentage of water loss, water utilization
At least six in efficiency.
3. a kind of Arid Regions of Northern spring maize drought resistance rapid identification method according to claim 1, which is characterized in that described
The drought resisting appraisement system established in step 2 refers to: being primary mirror at least one of " spinning loose powder interval ", " plant height "
Determine index；It is that secondary identification refers to at least two in " functional leaf leaf area ", " leaf r elative water content ", " Net Photosynthetic Rate "
Mark；With in " ear period dry-matter accumulation amount ", " chlorophyll content ", " excised leaf percentage of water loss ", " water use efficiency " at least
Three are final identification of indicator.
4. a kind of Arid Regions of Northern spring maize drought resistance rapid identification method according to claim 1, which is characterized in that described
The method for using field intuitively to identify in step 3 specifically includes: being referred to the preliminary identification in the drought resisting appraisement system of foundation
It is designated as intuitively identifying reference index, preliminary screening goes out the Arid Regions of Northern spring maize kind in the region.
5. a kind of Arid Regions of Northern spring maize drought resistance rapid identification method according to claim 1, which is characterized in that described
Test method for measuring is used to specifically include in step 3: with the secondary identification of indicator in the drought resisting appraisement system of foundation,
Spring maize kind is screened again, then with the final identification of indicator in the drought resisting appraisement system of foundation, to integrate point
The drought resistance of analysis evaluation Arid Regions of Northern spring maize kind.
6. a kind of Arid Regions of Northern spring maize drought resistance rapid identification method according to claim 2, which is characterized in that described
Functional leaf leaf area, ear period dry-matter accumulation amount, chlorophyll content, Net Photosynthetic Rate, leaf r elative water content, excised leaf lose
Water rate, water use efficiency are measured by acquiring maize leaf sample.
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Citations (6)
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|---|---|---|---|---|
| CN101221159A (en) * | 2007-12-04 | 2008-07-16 | 上海市农业生物基因中心 | Drought resistance appraising method |
| CN103493727A (en) * | 2013-10-24 | 2014-01-08 | 山东连胜种业有限公司 | Maize breeding method |
| CN106258946A (en) * | 2016-10-28 | 2017-01-04 | 福建农林大学 | A kind of selection of high resistance to cold and diseases glutinous corn variety |
| CN106818100A (en) * | 2016-07-29 | 2017-06-13 | 新疆农业科学院粮食作物研究所 | A kind of method for screening drought-resistant maize germplasm |
| CN106818101A (en) * | 2016-07-29 | 2017-06-13 | 新疆农业科学院粮食作物研究所 | A kind of method for identifying drought resistance of maize |
| CN108921451A (en) * | 2018-07-27 | 2018-11-30 | 广西壮族自治区农业科学院玉米研究所 | A kind of evaluation method for identifying corn variety drought resistance |
-
2019
- 2019-04-26 CN CN201910341579.0A patent/CN109932492B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221159A (en) * | 2007-12-04 | 2008-07-16 | 上海市农业生物基因中心 | Drought resistance appraising method |
| CN103493727A (en) * | 2013-10-24 | 2014-01-08 | 山东连胜种业有限公司 | Maize breeding method |
| CN106818100A (en) * | 2016-07-29 | 2017-06-13 | 新疆农业科学院粮食作物研究所 | A kind of method for screening drought-resistant maize germplasm |
| CN106818101A (en) * | 2016-07-29 | 2017-06-13 | 新疆农业科学院粮食作物研究所 | A kind of method for identifying drought resistance of maize |
| CN106258946A (en) * | 2016-10-28 | 2017-01-04 | 福建农林大学 | A kind of selection of high resistance to cold and diseases glutinous corn variety |
| CN108921451A (en) * | 2018-07-27 | 2018-11-30 | 广西壮族自治区农业科学院玉米研究所 | A kind of evaluation method for identifying corn variety drought resistance |
Non-Patent Citations (1)
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