624 results about "Drought stress" patented technology

The invention belongs to the technical field of intelligent agriculture, and discloses a canopy-atmospheric environment information-based soil water content prediction method and system, and the method comprises the steps: setting a canopy and atmospheric environment monitoring unit in a field, and synchronously collecting the canopy temperature, wind speed, relative humidity, and six-dimensional environment parameters of atmospheric temperature, wind speed and relative humidity; the crown temperature difference is calculated after preprocessing; the method comprises the following steps: constructing a training set by utilizing measured data of soil relative water content, constructing a soil water content prediction model by adopting a random forest algorithm, screening and confirming an optimal prediction model through grid search and cross validation, and screening key features by combining an SHAP value; the water demand is automatically calculated according to a pre-established crop whole-growth-period drought stress threshold table and a dynamic irrigation decision formula, and meanwhile, the adaptation of a general model to a regional specific model is realized by constructing an environmental parameter-actually measured water content database and transfer learning, so that the soil water content state is accurately predicted, and the soil quality is improved. And a scientific basis is provided for precise irrigation.

The invention discloses a comprehensive evaluation method for drought resistance of white birch germplasm resources in the seedling stage, and belongs to the technical field of drought resistance evaluation. Under different gradient drought stress and normal conditions, 14 drought resistance indexes of 90 white birch half-sib families are measured, and the drought resistance is comprehensively evaluated by combining membership function analysis, principal component analysis and clustering analysis. A comprehensive drought resistance evaluation value (D value) is obtained according to a membership function, comprehensive clustering analysis is carried out according to the D value of each family, 90 families are divided into four categories at the Euclidean distance of 1.5, and BWY32 and BWY29 are screened out as drought-resistant families. A stepwise linear regression analysis method is utilized to respectively establish linear regression equations under drought stress 5d and 10d, and four important drought resistance indexes are screened out. Compared with the previous research, the method fully considers the difference of the sensitivity degree of each selected index to drought stress and the contribution rate of each index to drought resistance evaluation, and lays a good foundation for simplification and high efficiency of the drought resistance evaluation of the white birch.

The invention discloses a gene PtoMYB20 for regulating and controlling salt tolerance and drought resistance of poplars. A nucleotide sequence of the gene comprises a sequence as shown in SEQ ID NO. 1. The gene interference fragment is introduced into a plant to obtain a silent transgenic plant, under the conditions of salt stress, drought stress and salt-drought composite stress, the H2O2 and MDA contents of the silent transgenic plant are lower than those of a wild plant, and the SOD and POD activities of the silent transgenic plant are higher than those of the wild plant, so that the damage degree of the plant is effectively reduced; the method is of great significance in improving salt tolerance and drought resistance of the poplar and relieving damage of adversity stress to forestry yield. The invention also discloses a breeding method of the transgenic poplar with strong salt tolerance and drought resistance, provides a new poplar germplasm which not only improves the stress resistance of the poplar but also does not influence the wood yield, and lays a theoretical and gene resource foundation for the stress-resistant molecular breeding of the poplar.

The invention provides a method for screening drought-enduring germplasm resources of macadamia nuts, and belongs to the technical field of plant germplasm resource screening. The screening method comprises the following steps: (1) sowing disinfected macadimia nut seeds into a seedling raising tray, and raising seedlings to obtain seedlings; (2) transplanting the seedlings obtained in the step (1) into a nutrient medium, and performing drought stress culture to obtain pretreated seedlings; and (3) determining drought tolerance indexes in the pretreated seedlings obtained in the step (2), and screening to obtain the macadimia nut drought-tolerant germplasm resources. According to the screening method provided by the invention, macadamia nut germplasm resources with relatively strong drought tolerance can be rapidly screened out, and powerful support is provided for cultivation of drought-tolerant varieties.

The invention belongs to the technical field of drought risk prediction and vegetation influence evaluation, and particularly discloses a vegetation-to-drought resource utilization coupling response strategy evaluation method, which comprises the following steps: acquiring target data; constructing a drought index according to the target data, and extracting a drought event; extracting vegetation total productivity, vegetation net level productivity and evapotranspiration abnormal data before and after the drought event, and calculating response intensity of vegetation variables; calculating the average variation of the light energy utilization efficiency, the carbon utilization efficiency and the moisture utilization efficiency; comprehensively considering the multivariable resistance-recovery state of the vegetation physiological process and the regulating variable of the resource utilization efficiency of the vegetation in response to drought stress, and analyzing the drought event resistance-recovery response capability of the vegetation. The method can more accurately and objectively understand the physiological mechanism difference of the vegetation to the drought stress response.

The invention relates to the technical field of plant stress resistance screening, in particular to a method for screening drought-resistant mutants after EMS mutagenesis of bamboo reed cluster buds, which comprises the following steps: S1, performing hydroponic seedling strengthening on wild tissue culture seedlings and EMS-treated rooting tissue culture seedlings to obtain wild bamboo reed seedlings and EMS-treated bamboo reed seedlings; s2, screening suitable concentration of PEG-6000: screening wild type bamboo reed seedlings by using a series of PEG-6000 solutions with different concentrations, comparing survival rates of the bamboo reed seedlings under different treatments, and screening suitable concentration for simulating drought stress by a PEG-6000 water culture method; s3, simulating drought stress conditions by using the screened PEG-6000 solution with proper concentration as a permeable medium, and screening the EMS treated bamboo reed seedlings to obtain drought-resistant plants. The screening method provided by the invention is not limited by seasons, has high accuracy, and is a simple, convenient and rapid method for screening drought-resistant bamboo reed plants.

The invention belongs to the technical field of molecular biology and genetic engineering, and particularly relates to a passion fruit PeDREB1 gene and application thereof in regulating temperature and drought stress tolerance. By overexpressing the passion fruit PeDREB1 transcription factor in the plant, the tolerance of the transgenic plant to temperature stress (low temperature and high temperature) and drought stress can be obviously enhanced, the growth recovery capability of the transgenic arabidopsis thaliana overexpressed with PeDREB1 after low temperature stress is obviously superior to that of a wild type, and the leaf area growth rate is increased by about 0.45-2.28%; under the condition that 0.2 mol / L to 0.3 mol / L mannitol simulates drought stress, the seed germination rate is increased by 5.39 percent to 9.29 percent, and the root length growth rate is increased by 1.08 percent to 6.72 percent; the invention provides a clear gene target and a directly applicable molecular resource for plant stress resistance molecular breeding, can provide theoretical support for subsequent clarification of a regulation mechanism of plant response temperature and drought stress, and also lays a foundation for plant stress resistance genetic improvement and new germplasm creation.

The invention relates to the technical field of plant drought tolerance, in particular to a plant drought tolerance related protein FYVE4 and application of a coding gene thereof. By inhibiting expression or protein activity of the FYVE4 gene in the plant, the survival rate of the plant under drought stress is increased; according to the method, in genetic improvement of arabidopsis thaliana, after genetic transformation is conducted through an agrobacterium-mediated method or a gene gun method, the stomata closing response speed and chlorophyll accumulation amount of crops can be effectively increased, and therefore plants with stable genetic drought resistance characters are established; the technical scheme is particularly suitable for constructing a water-saving agricultural system, has very important significance for improving crops and cultivating drought-resistant crops, and is suitable for popularization and application.

The invention relates to cloning of a stress-resistant gene LpbHLH144 of Lilium pumilum DC (Lilium pumilum DC.) and application of the stress-resistant gene LpbHLH144 of Lilium pumilum DC. Comprising the following steps: (1) cloning a target gene; (2) constructing an expression vector; and (3) detecting physiological indexes of the transgenic plant. According to the experiment, lilium tenuifolium is taken as a research object, and the LpbHLH144 gene is cloned by applying an RT-PCR technology; transforming tobacco by constructing an overexpression vector; the functions of overexpression of the LpbHLH144 for improving the saline-alkaline and drought stress of the tobacco are identified through transgenic tobacco, the functions of the lilium tenuifolium bHLH gene when the lilium tenuifolium bHLH gene is subjected to adversity stress are disclosed, a foundation is laid for further application of the lilium tenuifolium in lily breeding, and a theoretical basis is provided for the functions and effects of bHLH transcription factors.

The invention relates to the technical field of carbon flux monitoring, and particularly discloses a carbon flux monitoring method and system based on soil drought remote sensing data, and the method comprises the steps: respectively collecting soil humidity remote sensing data and a soil vegetation coverage remote sensing image through a microwave sensor and an optical remote sensing sensor; performing resampling on the soil humidity remote sensing data and the soil vegetation coverage remote sensing image to realize spatial resolution alignment, and performing spatial distribution feature extraction on the soil humidity remote sensing data and the soil vegetation coverage remote sensing image after spatial alignment by adopting a deep learning algorithm; and pixel-level significance enhancement and fusion processing are carried out on the captured soil humidity distribution characteristics and vegetation distribution characteristics, so that nonlinear modeling of a dynamic influence mechanism of the soil drought degree on the vegetation growth state is realized, and intelligent estimation of the carbon flux is realized on the basis. In this way, the nonlinear regulation and control effect of soil drought stress on vegetation respiration and photosynthesis can be effectively described, and the efficiency and coverage range of carbon flux monitoring are improved.

A remote inspection vehicle for inspecting a plant for early drought stress and a neural network model for calculating a score corresponding to a level of early drought stress in the plant. The inspection vehicle may be equipped with an inspection camera having a radiometric infrared sensor and a red, green, and blue light sensor to capture plant images. Image data from the inspection vehicle, as well as soil moisture and calculated CWSI scores, can be used to train the neural network model, deriving weights and biases therefrom using a plurality of neural network layers. Using a plant canopy temperature value, a red raster value, a green raster value, a blue raster value, and a soil moisture value, the trained neural network model can generate a score which can be used to assess the level of early drought stress in a plant.

The invention relates to a crop drought-resistant agent, a method for improving crop drought resistance and / or promoting crop growth and development and application of the crop drought-resistant agent, and belongs to the technical field of agricultural production. The crop drought-resistant agent is prepared from the following components: arginine, chitosan, salicylic acid, diethyl aminoethyl hexanoate, betaine, brassinolide and water. The crop drought-resistant agent can promote normal growth and development of crops under drought conditions, improve plant biomass accumulation and cell antioxidant enzyme activity and reduce toxicity of ROS to the plants, so that adaptability, tolerance and resistance of the crops to drought stress are improved, and the crop drought-resistant agent has the advantages of being good in drought-resistant effect, high in stability and high in safety.

The invention discloses application of a corn ZmTST1 gene in improvement of plant yield and stress resistance. The nucleotide sequence of the corn ZmTST1 gene is as shown in SEQ ID NO. 1; the stress resistance is tolerance to salt stress and drought stress. Through sequence analysis and functional verification, after the ZmTST1 gene is over-expressed, the growth of plants can be promoted, the yield of the plants can be increased, meanwhile, the drought tolerance and the salt tolerance of ZmTST1 expressed plants are obviously higher than those of wild plants, and it is proved that the ZmTST1 gene has a remarkable effect in the aspects of high yield and stress resistance. By identifying the ZmTST1 gene, plants with high stress resistance can be screened, the cultivation period of the plants can be shortened, and a new method and thought are provided for plant breeding in the future.

The invention provides a wetland forest and grass ecosystem restoration strength evaluation method under drought stress. The method comprises the steps of data collection, daily-scale ecosystem service function index ESS construction, ecological drought identification and restoration elasticity curve construction. Wherein the time resolution of the index is accurate to the day, the capture of short-time drought below the monthly scale is enhanced, and the accurate description of the dynamic process of ecological system restoration under the drought stress is realized; combined identification is carried out on the drought events in combination with the standardized ecological water deficit, and the accuracy of identification of the drought events causing significant differences of ecological system service functions is improved; a quantile regression model is utilized to quantify the ecological system recovery capability of different vegetation types, and data characteristics of different recovery time distributions of the ecological system under the same drought intensity are considered, so that the defect that a traditional mean value regression model cannot fully describe drought complex characteristics is overcome; and a theoretical support is provided for sustainable development of an ecological system under an extreme climate condition.

The invention discloses a rain-fed agricultural area drought index construction and application method, equipment and a medium. The rain-fed agricultural area drought index construction and application method comprises the following steps: S1, determining drought influence coefficients of crops in different growth stages; s2, constructing an APSIM model, and carrying out parameter calibration and model verification; s3, the APSIM model dynamically simulates the phenological period, the yield and soil water in the growing season of the crops in the sufficient irrigation and rain culture mode; s4, calculating the crop yield reduction rate; s5, constructing a drought stress index relational expression including the cumulative drought stress degree, the cumulative drought stress index and the standardized cumulative drought stress index; s6, based on the dynamic simulation result of the APSIM model, the crop yield reduction rate and the accumulated drought stress index are calculated in a fitting mode. According to the method, the soil humidity data acquisition problem is considered, the sensitivity difference of different growth stages to drought is also considered, and accurate quantitative evaluation of the drought stress response in the whole crop growth process can be further realized.

The invention discloses application of a transcription factor BnaMYB52 in regulation and control of drought resistance of rape, and relates to the technical field of biology. The amino acid sequence of the transcription factor BnaMYB52 is as shown in any one of SEQ ID NO. 5 to 8. According to the invention, the negative regulation effect of the transcription factor BnaMYB52 in the drought resistance of the rape is disclosed for the first time, and a brand new molecular target and a genetic improvement strategy are provided for improving the drought resistance of the rape. Through in-depth study, it is found that knockout of the BnaMYB52 gene can significantly enhance the tolerance of rape plants to the drought environment. In addition, a new drought-resistant rape germplasm obtained after genetic modification of the gene shows excellent adaptive capacity in a drought stress environment. The technical breakthrough not only helps to solve practical problems faced by rape planting in arid regions, but also lays a solid theoretical foundation and technical support for cultivating high-yield and high-quality rape varieties adapting to extreme climate conditions.

The invention provides application of an OsRTD1 gene in improving drought resistance of rice, and belongs to the technical field of gene engineering and rice drought resistance. The nucleotide sequence of the OsRTD1 gene is as shown in SEQ ID NO: 1, and the amino acid sequence of the protein coded by the OsRTD1 gene is as shown in SEQ ID NO: 2. Compared with a wild plant, the survival rate of the OsRTD1 gene mutant plant osrtd1 under the drought stress of PEG induction and soil dehydration is remarkably improved, the survival rate of the OsRTD1 gene overexpression plant OsRTD1-OE under the drought stress is remarkably reduced, the relative water loss rate of dehydrated leaves is higher, and the survival rate of the OsRTD1 gene overexpression plant OsRTD1-OE under the drought stress is remarkably reduced. The total grain number, the solid grain number, the total grain weight and the like of the OsRTD1 gene mutant plant osrtd1 under the stress of field drought are obviously higher than those of a wild plant. The OsRTD1 gene is a potential candidate new target for regulating and controlling a rice drought resistance mechanism.

The invention provides a tree species screening method for high-altitude drought afforestation, an afforestation method and application, and belongs to the technical field of forest tree breeding and cultivation. According to the screening method, five physiological and biochemical indexes of soluble protein, malondialdehyde, proline, peroxidase and soluble sugar in the tree species are measured through a gradient drought stress experiment, and comprehensive scoring is performed by adopting a membership function, so that the drought-resistant tree species are scientifically screened. The tree species such as sophora moorcroftiana, rosa serrulata and amorpha fruticosa screened by the method are applied to afforestation in the high-altitude arid region, and the afforestation survival rate and preservation rate can be remarkably increased. The invention provides a reliable technical scheme for solving the long-term problem that the selection of tree species in the difficult site field lacks scientific basis.

The invention relates to the technical field of gene engineering, in particular to application of a rice OsSAUR4 gene in regulation and control of rice drought tolerance, and the sequence of the rice OsSAUR4 gene is selected from any one of the following: 1) a nucleotide sequence as shown in SEQ ID NO.1; 2) a protein sequence as shown in SEQ ID NO.2, and 3) a sequence of which the homology with the nucleotide sequence as shown in SEQ ID NO.1 is more than 90%. The rice OsSAUR4 gene is knocked out, so that the drought tolerance of rice is improved, and the survival rate of rice in a drought stress environment is improved.

The invention relates to cloning of a stress-resistant gene LpbHLH75 of Lilium pumilum DC (Lilium pumilum DC.) and application of the stress-resistant gene LpbHLH75 of Lilium pumilum DC. The lilium tenuifolium stress resistance key genes are mined through transcriptome data analysis, and the functions of the lilium tenuifolium stress resistance key genes are studied. Comprising the following steps: (1) cloning a target gene; (2) constructing a plant overexpression vector; and (3) detecting physiological indexes of the transgenic plant. According to the experiment, lilium tenuifolium is taken as a research object, and the LpbHLH75 gene is cloned by applying an RT-PCR technology; transforming tobacco by constructing an overexpression vector; the function of overexpression of the LpbHLH75 on tobacco salt and alkali and drought stress is identified through transgenic tobacco, the function of the lilium tenuifolium bHLH gene under adversity stress is disclosed, a new gene source is provided for lilium tenuifolium genetic engineering breeding, a reference is provided for later lilium tenuifolium stress-resistant germplasm resource research, and the lilium tenuifolium bHLH gene is developed. And a foundation is laid for exploring a gene capable of enhancing stress resistance in the lilium tenuifolium and a stress resistance mechanism of the gene.

The invention discloses a camellia oleifera forest planting ecology digital monitoring management system based on the Internet of Things, and relates to the technical field of planting ecology supervision. Dynamic ecological grid data is combined with an Internet of Things sensor and unmanned aerial vehicle patrol data, a blank area is filled through a spatial interpolation technology, and a real-time camellia oleifera forest ecological monitoring system is formed; dynamically updating a disease and pest risk distribution map through a disease and pest diffusion model and unmanned aerial vehicle patrol data, and identifying a high-risk area in combination with diffusion path simulation; the unmanned aerial vehicle is linked to perform quantitative spraying of biopesticide, prevention and control operation is performed only in a high-risk area, the pesticide usage amount is reduced, and soil microbial communities and an ecological system are protected; through nutrient diffusion and permeation simulation, the influence of a fertilization scheme on soil nutrient loss is evaluated, the fertilization amount and fertilization time are optimized, nutrient waste and water pollution risks are reduced, the irrigation amount and strategy are dynamically adjusted, the water resource utilization efficiency is optimized, and excessive irrigation or drought pressure is avoided.

The invention discloses a cotton drought stress grade detection method and system based on acoustic emission response, and the method comprises the steps: carrying out the drought stress state calibration of cotton, obtaining a calibration rule, setting the environment parameters of the cotton according to the calibration rule, and enabling the cotton to be in a drought stress state; collecting an acoustic emission response signal emitted by the cotton in a drought stress state through an optimal cotton drought stress acoustic emission detection method; the stalk sound conduction characteristics of the cotton are obtained, and a sound emission model is obtained according to the sound emission response signals and the stalk sound conduction characteristics; inputting the acoustic emission response signal into an acoustic emission model to output a time-frequency domain oscillogram, extracting features in the time-frequency domain oscillogram, and optimizing the features to obtain target features; and establishing a grade classification model according to the target features and the calibration rule, and outputting the drought stress grade of the target cotton by using the grade classification model. The drought stress state of the cotton can be accurately evaluated, and a scientific basis is provided for agricultural irrigation management.

The invention relates to the field of plant molecular biology and forest genetic engineering, and particularly provides a PagRAP2.3 protein point mutant and application thereof in drought resistance of poplar. The mutant PagRAP2.3 MA is obtained by mutating methionine at the first site and cysteine at the second site of a wild type PagRAP2.3 protein into methionine and alanine. The invention further discloses a preparation method of the mutant PagRAP2.3. An expression vector containing the PagRAP2.3 MA gene is constructed, poplar 84K is transformed through an agrobacterium-mediated method, and a transgenic line with stable expression is obtained. Functional verification results show that overexpression of PagRAP2.3 MA can significantly increase the plant height of the poplar and promote plant growth, but the sensitivity to moisture is enhanced under drought stress. The mutant can be used for regulating and controlling the growth and development of forest trees and evaluating the drought resistance, and has a forestry breeding application prospect.

Disclosed are a Solanum tuberosum drought tolerance-related transcription factor gene StPIF4 and the use thereof. A CDS sequence of StPIF4 has a length of 1554 bp, has a nucleotide sequence shown as SEQ ID No. 1, and encodes 517 amino acids, the amino acid sequence being shown as SEQ ID No. 2. The gene is located in a cell nucleus. The gene reduces the water loss of Solanum tuberosum seedlings under the drought stress by adjusting the opening degree of stomas, thus enhancing the drought tolerance of Solanum tuberosum. The present invention provides a new genetic material and a theoretical basis for analyzing the drought-tolerant molecular mechanism and drought-tolerant breeding improvement of Solanum tuberosum.

The invention discloses a growth-promoting rhizobacteria, a growth-promoting rhizobacteria microbial inoculum and application thereof, and belongs to the technical field of microorganisms, the growth-promoting rhizobacteria is Pseudomonas mohnii, the strain number is YQ142, the classification name is Pseudomonas mohnii, and the growth-promoting rhizobacteria is preserved in China General Microbiological Culture Collection Center on April 7, 2025, and the preservation number is CGMCC No.34110. The invention further discloses a preparation method of the growth-promoting rhizobacteria. The growth-promoting rhizobacteria has strong nitrogen fixation and phosphate solubilizing capabilities, can promote the growth of ryegrass, oat and corn, and improves the saline-alkali stress resistance and drought stress resistance of ryegrass.

The invention relates to the technical field of disaster loss detection, in particular to a target crop composite high-temperature drought disaster loss detection method and system. The method comprises the following steps: training machine learning based on target crop per unit yield data and geographic coordinate data of a plurality of grids of a research area and target crop growth factor data of a plurality of dates of the grids to obtain a crop per unit yield prediction model; target crop growth factor data corresponding to the ideal weather scene and the composite high-temperature drought scene are constructed to drive a crop per unit yield prediction model respectively, and target crop per unit yield prediction data corresponding to the ideal weather scene and the composite high-temperature drought scene are obtained; and performing difference processing on the obtained target crop per unit yield prediction data corresponding to the ideal weather scene and the composite high-temperature drought scene to obtain a composite high-temperature drought disaster loss value of the target crop, reflecting the per unit yield loss of the target crop under the composite high-temperature drought stress, and providing a scientific basis for guaranteeing the national food safety.

The invention relates to the technical field of biological genetic engineering, in particular to application of a brassica napus BnaA01G0331000ZS gene in drought stress resistance. The BnaA01G0331000ZS gene is cloned by using cDNA of double 11 leaves as a template through a sequence published in a brassica napus genome database, an over-expression vector is constructed and genetically transformed into rape variety high oil for transgenic function verification, the drought resistance of the obtained over-expression transgenic line is obviously enhanced compared with that of a wild type, and the BnaA01G0331000ZS gene has the advantages that the BnaA01G0331000ZS gene is obtained; therefore, the gene can positively regulate the drought stress resistance of the rape. Therefore, the invention provides a new gene resource for adversity stress resistance of rape.

The invention discloses an application of a salvia miltiorrhiza SmNCED2 gene and an encoding protein thereof in drought resistance. The invention specifically discloses a protein with amino acid shown as SEQ ID No.1, a coding gene, a related biological material and application of the protein in regulation and control of drought resistance of salvia miltiorrhiza. The SmNCED2 gene from salvia miltiorrhiza is introduced into receptor salvia miltiorrhiza to obtain a transgenic salvia miltiorrhiza plant over-expressing the SmNCED2 gene, and drought tolerance agronomic trait identification and ABA index determination results show that compared with control salvia miltiorrhiza, the salvia miltiorrhiza plant over-expressing the SmNCED2 gene can significantly improve the drought resistance of salvia miltiorrhiza under the drought stress condition, so that the drought resistance of salvia miltiorrhiza is improved, and the drought resistance of salvia miltiorrhiza is improved. The SmNCED2 gene and the encoding protein thereof provided by the invention have important application value in regulating the drought resistance of salvia miltiorrhiza.

The invention provides an application of a sunflower HaSnRK2 gene in regulating and controlling salt tolerance and drought tolerance of plants, and belongs to the technical field of plant genetic engineering. The invention provides an overexpression vector of a sunflower HaSnRK2 gene. The overexpression vector is applied to regulation and control of salt tolerance and drought tolerance of plants after genetic transformation is carried out on the plants by using a flower dipping method. Through overexpression of the sunflower HaSnRK2 gene, the salt stress tolerance and the drought stress tolerance of plants are remarkably enhanced, and damage caused by reactive oxygen free radicals induced by salt stress and drought stress can be effectively relieved.

The invention provides application of an OsERF8 gene in improving drought resistance of rice, and belongs to the technical field of gene engineering and rice drought resistance. The nucleotide sequence of the OsERF8 gene is as shown in SEQ ID NO: 1, and the amino acid sequence of the encoding protein of the OsERF8 gene is as shown in SEQ ID NO: 2. Compared with a wild plant, the survival rate of an oserf8 mutant plant under PEG induction and soil dehydration drought stress is remarkably improved; and the survival rate of the overexpressed plant OsERF8-OE under the induction of PEG (Polyethylene Glycol) is obviously reduced. Compared with a wild type plant, after PEG induces drought stress, the malondialdehyde content of the overground part of the oserf8 mutant plant is reduced, and the proline content is increased; the malondialdehyde content of the overground part of the overexpressed plant OsERF8-OE is increased, and the proline content is reduced. In conclusion, the OsERF8 gene is a potential candidate new target for researching a rice drought resistance regulation mechanism.