CN105145214B - Rice heat resistant variety ear period screening technique - Google Patents
Rice heat resistant variety ear period screening technique Download PDFInfo
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- CN105145214B CN105145214B CN201510394864.0A CN201510394864A CN105145214B CN 105145214 B CN105145214 B CN 105145214B CN 201510394864 A CN201510394864 A CN 201510394864A CN 105145214 B CN105145214 B CN 105145214B
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Abstract
The invention discloses rice heat resistant variety ear period screening technique.This method is transplanted to when tested variety is grown into 31 heart stage of leaf in transplanting bucket, is respectively placed in crop field and greenhouse；Maturation is grown into the control group for being moved out to big Tanaka and big Tanaka after tested variety high-temperature process in greenhouse again；Heat-resistance coefficient is calculated finally by the setting percentage of high-temperature process setting percentage/control, and the heat resistance for analyzing different tested varieties is strong and weak.The present invention increases the environment temperature in high-temperature process period, increase selection pressure by manually heating, and then can more accurately screen heat proof material；Simultaneously to boot stage shading treatment, ensure that the rice florescence is consistent；Florescence inconsistent rice stem fringe is wiped out before high-temperature process, it is ensured that toeatment period is consistent.
Description
Technical field
The present invention relates to a kind of rice heat resistant variety ear period screening technique.
Background technology
It is increasingly severe with the trend of global warming, the trend of harm presentation normalization of the high temperature to rice, one
Heat evil occurs for denier, can cause to drop in production over a large area, and is even had no harvest when serious, and Climatic regionalization has threatened the grain life in China
Production safety.
The research of rice Climatic regionalization is still in the starting stage at present, although achieving some gratifying achievements, either
The appraisement system of Climatic regionalization, or in research method, it is all not mature enough.From the point of view of current report, Climatic regionalization processing
Method is varied, ununified standard, therefore how to improve high-temperature processing method is urgent problem, and establishes
Simple accurately heat resistant variety screening technique will be research emphasis from now on.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of rice heat resistant variety ear period screening technique.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is rice heat resistant variety ear period screening technique,
Comprise the following steps：
(1) tested variety is seeded into rice seedling bed, be transplanted to when tested variety grew to for 31 heart stage of leaf in transplanting bucket, each
Tested variety transplanting is a plural transplanting bucket；
(2) when tested variety 50% enters boot stage, by the way of cover shading net, shading treatment is carried out, is ensured not
It can ear simultaneously with kind；
(3) 1 day before high-temperature process, patch root cuts the tillering tassel do not eared, ensures many per individual plant in every transplanting bucket
In 5 fringes, and each selected fringe developmental process is consistent；
(4) half of the transplanting total number of elements of bucket of each tested variety is moved into greenhouse on the day of high-temperature process, it is total by bucket is transplanted
Remaining second half of number of elements is placed in field and grown naturally as a control group；
(5) high-temperature process is carried out by the following method to the half transplanting bucket of tested variety in greenhouse：The high-temperature process time 6~
9 days, the temperature in greenhouse remained 40~48 DEG C daytime, and night remains 30~38 DEG C, and the relative humidity whole day in greenhouse is protected
Hold as 60~80%；And the environment temperature of synchronous recording control group；
(6) daily to the position of different each transplanting buckets of tested variety adjustment in greenhouse so that ring residing for each tested variety
Border is basically identical, eliminates environmental error；
(7) after high-temperature process terminates, transplanting bucket is removed from greenhouse, is placed in and is grown naturally unanimously with field where control group
Environment in, grow to harvest；
(8) setting percentage investigation is carried out to the tested variety Jing Guo high-temperature process and control group respectively when harvesting, calculated heat-resisting
Coefficient；The setting percentage of the heat-resistance coefficient=high-temperature process setting percentage/control；The heat resistance for analyzing different tested varieties is strong and weak.
Preferably, in step (1), for different tested varieties, can be grown according to the breeding time of different tested varieties
It is short, take the mode of interval sowing that tested variety is seeded into rice seedling bed.
Preferably, transplanting bucket described in step (1) is Plastic Drum, a diameter of 20cm of the Plastic Drum, a height of 40cm.
Preferably, each tested variety transplanting is 4~10 transplanting buckets described in step (1).
Preferably, every transplanting barrel plant 3 cave of tested variety described in step (1), per the transplanting of cave double seedlings.
Preferably, the shading treatment time in step (2) is 5~10 days.
Preferably, in step (5), in high-temperature process, by being evenly distributed in four corners and greenhouse in greenhouse
The heater of centre manually heats, or is heated up naturally by greenhouse illumination；Using in automatic dehumidifying/humidification device regulation greenhouse
Relative humidity.
Preferably, in step (5), the environment temperature using Full-automatic temperature recorder by control group of record per minute
Degree.
Preferably, in step (6), different tested variety transplanting buckets in greenhouse are respectively once adjusted in every morning and afternoon
Position.
The beneficial effects of the invention are as follows：
Boot stage shading treatment, ensure that the rice florescence is consistent；Florescence inconsistent rice stem fringe is wiped out before high-temperature process, really
It is consistent to protect toeatment period；Can be by manually heating the environment temperature in increase high-temperature process period, increase selection pressure, and then can be with
More accurately screen heat proof material.
Embodiment
A kind of rice heat resistant variety ear period screening technique, comprises the following steps：
(1) the breeding time length according to different tested varieties, the mode of interval sowing is taken, tested variety is seeded into seedling
Tanaka, tested variety are transplanted when growing to for 31 heart stage of leaf, are transplanted to diameter 20cm, in high 40cm Plastic Drum, using every cave
Double seedlings is transplanted, per the cave of barrel plant 3, each 8 barrels of tested variety；
(2) when tested variety 50% enters boot stage, by the way of cover shading net, shading treatment is carried out 6~9 days,
Ensure that different cultivars can ear simultaneously；
(3) 1 day before high-temperature process, patch root cuts the tillering tassel do not eared, ensures that every barrel is no less than 5 fringes per individual plant, and
Each selected fringe developmental process is consistent；
(4) by the potted plant 4 barrels of immigration greenhouses of each tested variety on the day of high-temperature process, 4 barrels are placed in field as control in addition
Group；
(5) in high-temperature process, by being evenly distributed on four corners in greenhouse and the heater in greenhouse center to temperature
Indoor temperature is manually heated, or is heated up naturally by greenhouse illumination；The high-temperature process time is 7 days, and the temperature in greenhouse is white
It remains 40~48 DEG C, and night remains 30~38 DEG C, while ensures whole day in greenhouse using automatic dehumidifying/humidification device
Relative humidity is 60~80%；Simultaneously using Full-automatic temperature recorder as the field ring where once record control group per minute
Border temperature；
(6) the potted plant position of different cultivars in 2 adjustment greenhouses of every morning and afternoon so that each kind local environment
It is basically identical, eliminate environmental error；
(7) after high-temperature process terminates for 7 days, by the potted plant removal of high-temperature process, it is placed in the crop field same with control group certainly
Harvest is grown under right growing environment；
(8) setting percentage investigation is carried out to the tested variety Jing Guo high-temperature process and control group respectively when harvesting, calculated heat-resisting
Coefficient：The setting percentage of heat-resistance coefficient=high-temperature process setting percentage/control, the heat resistance for analyzing different tested varieties are strong and weak.
The present embodiment has the characteristics that：
First, it can not carry out high-temperature process by manually heating, when solving rainy days and relatively low temperature in greenhouse
Problem, while the temperature in toeatment period greenhouse can also be increased, increase selection pressure, and then can more accurately screen heat-resisting material
Material.
Second, humiture self-recording unit is mounted with field, can be with warm in real time in greenhouse of every 1 minute record
Humidity, its data of the Temperature and Humidity module recorded can be exported by computer, improve the accuracy of Analysis of Heat Tolerance.
Third, pass through the potted plant position of different cultivars in every morning and afternoon each 1 adjustment greenhouse so that each kind
Local environment is basically identical, eliminates environmental error, also substantially increases the accuracy of processing.
Fourth, by increasing the different potted plant strain numbers of tested variety, the sample size of different tested variety high temperature resistant processing is improved,
It can be very good to eliminate environmental error, the reliability of increase high temperature stress processing.
Fifth, the method transplanted by every cave double seedlings, can be very good to control the individual difference in each basin between different individual plants
It is different, the transplanted seedling growth neat and consistent of every basin tested variety is ensure that, and then add the standard of high temperature resistant screening varieties and evaluation
True property and repeatability.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (9)
1. rice heat resistant variety ear period screening technique, comprises the following steps：
(1) tested variety is seeded into rice seedling bed, is transplanted to when tested variety grew to for 31 heart stage of leaf in transplanting bucket, each participates in the experiment
Variety transplanting is a plural transplanting bucket；
(2) when tested variety 50% enters boot stage, shading treatment is carried out by the way of cover shading net, ensures different cultivars
Ear simultaneously；
(3) 1 day before high-temperature process, patch root cuts the tillering tassel do not eared, ensures to be no less than 5 in every transplanting bucket per individual plant
Fringe, and each selected fringe developmental process is consistent；
(4) half of the transplanting total number of elements of bucket of each tested variety is moved into greenhouse on the day of high-temperature process, the total number of elements of bucket will be transplanted
Remaining second half is placed in field and grown naturally as a control group；
(5) high-temperature process is carried out by the following method to the half transplanting bucket of tested variety in greenhouse：6~9 days high-temperature process time,
Temperature in greenhouse remains 40~48 DEG C daytime, and night remains 30~38 DEG C, and the relative humidity whole day in greenhouse remains
60~80%；And the environment temperature of synchronous recording control group；
(6) daily to the position of different each transplanting buckets of tested variety adjustment in greenhouse so that each tested variety local environment base
This is consistent, eliminates environmental error；
(7) after high-temperature process terminates, transplanting bucket is removed from greenhouse, is placed in and grows consistent ring naturally with field where control group
In border, harvest is grown to；
(8) setting percentage investigation is carried out to the tested variety Jing Guo high-temperature process and control group respectively when harvesting, calculates heat-resistance coefficient；
The setting percentage of the heat-resistance coefficient=high-temperature process setting percentage/control；The heat resistance for analyzing different tested varieties is strong and weak.
2. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：In step (1), for
Different tested varieties, according to the breeding time length of different tested varieties, the mode of interval sowing is taken to sow tested variety
Into rice seedling bed.
3. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：Step is moved described in (1)
Cultivation bucket is Plastic Drum, a diameter of 20cm of the Plastic Drum, a height of 40cm.
4. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：It is every described in step (1)
Individual tested variety transplanting is 4~10 transplanting buckets.
5. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：Step is joined described in (1)
Every transplanting barrel plant 3 cave of Varieties, per the transplanting of cave double seedlings.
6. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：Described in step (2)
The shading treatment time is 5~10 days.
7. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：In step (5), in high temperature
During processing, manually heated by the heater of four corners and greenhouse center that are evenly distributed on greenhouse, or pass through greenhouse light
According to natural heating；Utilize the relative humidity in automatic dehumidifying/humidification device regulation greenhouse.
8. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：In step (5), using complete
Automatic temperature recorder is by the environment temperature per minute for recording a control group.
9. rice heat resistant variety ear period screening technique according to claim 1, it is characterised in that：In step (6), daily
The morning and the position for respectively once adjusting different tested variety transplanting buckets in greenhouse afternoon.
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| CN105631758B (en) * | 2016-01-11 | 2019-03-26 | 长江大学 | A kind of rice varieties high temperature resistance identification method |
| CN106526083B (en) * | 2016-11-08 | 2018-08-31 | 山东省农业科学院作物研究所 | A kind of method of Heat Tolerance of Wheat Cultivars identification |
| CN107047160B (en) * | 2017-03-27 | 2020-03-27 | 湖南省水稻研究所 | Identification method of high-temperature-resistant rice and application of high-temperature-resistant rice in breeding |
| CN110338012A (en) * | 2018-04-03 | 2019-10-18 | 安徽省农业科学院水稻研究所 | A method of rice heat resistance is identified using auto temperature controlled system |
| CN110476751A (en) * | 2019-09-02 | 2019-11-22 | 华中农业大学 | The method for measuring different rice varieties grouting parameter physiological metabolisms and rice quality |
| CN114521459A (en) * | 2022-02-22 | 2022-05-24 | 安徽国瑞种业有限公司 | Method for cultivating heat-resistant disease-resistant nitrogen efficient rice |
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| CN1623686A (en) * | 2004-12-09 | 2005-06-08 | 中国水稻研究所 | Process for screening and identifying temp. pure sensing material of rice quality |
| CN1784951A (en) * | 2005-11-17 | 2006-06-14 | 国家杂交水稻工程技术研究中心天津分中心 | Method for breeding stock of rice temp-sensing sterile line and purifying origin temp |
| CN102487771A (en) * | 2011-12-28 | 2012-06-13 | 宁波市农业科学研究院 | Heading stage high-temperature resistance identifying method for rice variety |
| CN103828666B (en) * | 2014-03-07 | 2016-02-24 | 四川省农业科学院水稻高粱研究所 | The field identification method of rice varieties heat-resisting quantity in flowering stage |
| CN103918516B (en) * | 2014-04-29 | 2016-07-06 | 宜春学院 | The method identifying rice ear sprouting period high temperature resistance |
| CN203840868U (en) * | 2014-05-12 | 2014-09-24 | 宜春学院 | System for authenticating high temperature resistance of paddy rice |
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