4233 results about "Plantlet" patented technology

The invention discloses a PgEGY3 gene for improving cold resistance of pennisetum alopecuroides and increasing fresh weight of leaves and application of the PgEGY3 gene, and relates to the technical field of genetic engineering, and the nucleotide sequence of the PgEGY3 gene of the pennisetum alopecuroides is shown as SEQ ID NO.1. The invention also discloses a protein coded by the Pennisetum alopecuroides PgEGY3 gene. The invention also discloses a recombinant expression vector and a recombinant host cell comprising the Pennisetum alopecuroides PgEGY3 gene. The invention also discloses application of the PgEGY3 gene, a recombinant expression vector and a recombinant host cell in improving cold resistance and biomass of pennisetum alopecuroides. It is verified that the Pennisetum alopecuroides PgEGY3 gene can improve the cold resistance of plants, and the growth state of the plants under cold stress is remarkably improved through overexpression of the PgEGY3 gene.

The invention discloses an application of a rape BnC05ERF378 gene in improving the waterlogging resistance of a plant. The nucleotide sequence of the rape BnC05ERF378 gene is as shown in SEQ ID NO. 1. According to the invention, a brand new stain-resistant gene BnC05ERF378 is cloned from rape for the first time, and is transferred into arabidopsis thaliana to construct a pure line plant and complete stain resistance identification. Experimental results show that the growth state of the transgenic BnC05ERF378 gene arabidopsis thaliana is remarkably superior to that of a wild type after waterlogging treatment, the transgenic BnC05ERF378 gene arabidopsis thaliana can normally bolt, the survival rate is increased from 12.5% to 37.5%, it is fully proved that the gene can enhance the survivability of the plant in a waterlogging environment by regulating the response mechanism of the plant to waterlogging stress, and the survival rate of the plant is increased from 12.5% to 37.5%. And a key guarantee is provided for stable growth of plants under high-humidity, waterflooding and other adverse conditions. According to the discovery and application of the waterlogging-resistant gene BnC05ERF378 disclosed by the invention, a clear functional gene target is provided for improvement of waterlogging resistance of crops. By constructing an expression vector containing the gene and combining mature technologies such as agrobacterium transformation, the gene can be stably introduced into a target plant, and a pure transgenic plant is obtained.

The invention relates to the technical field of data reasoning, and discloses a ludisia discolor harvest time prediction method and system fused with multi-source data, and the method comprises the steps: converging meteorological elements of ludisia discolor, soil profile physicochemical indexes and plant body physiological signals, and obtaining a time-space synchronization multi-dimensional information field; identifying a critical point of fundamental transformation of a growth mode in ludisia discolor, and dividing a complete growth cycle into multiple phenological stages; dimensionality reduction is carried out on the multi-dimensional data of the multi-phenological stage, tensor synthesis is carried out on the situation characteristics of the result after dimensionality reduction, and a growth situation vector is obtained; establishing a contribution degree quantification system, and endowing the growth situation vector with a contribution degree weight; correcting the growth situation vector, arranging corrected results according to a time sequence, and regarding the corrected results as a full life cycle development trajectory to deduce a physiological maturity path; when the physiological maturity path reaches a historical optimal quality convergence interval of ludisia discolor, determining an optimal harvesting window; the method can improve the prediction accuracy of the ludisia discolor harvesting time.

The invention relates to the technical field of microorganisms, and particularly discloses a saline-alkaline tolerant bacillus deserticola BW-13 with biocontrol and growth promoting functions and application thereof. The bacillus safensis BW-13 is preserved in the China Center for Type Culture Collection on January 13, 2025, the classification name of the bacillus safensis BW-13 is bacillus safeensis, and the preservation number of the bacillus safensis BW-13 is CCTCC NO: M 2025108. The strain BW-13 has relatively high salt tolerance, and still keeps good resistance under various stress conditions; meanwhile, the plant growth promoting agent has various plant growth promoting characteristics including nitrogen fixation, phosphorus solubilization and cellulase and protease secretion capacity, and pot experiment verifies that the plant growth promoting agent can improve the salt resistance of cucumber seedlings and promote plant growth; the strain has an antagonistic effect on a plurality of phytopathogens, and especially has a remarkable prevention and treatment effect on plant diseases such as apple ring spot, polygonatum kingianum anthracnose, pear tree rot and tomato gray mold caused by ascomycophyta pathogenic fungi.

The invention discloses a traditional Chinese medicinal material standard base pest and disease damage intelligent monitoring and precise control method and control system, and relates to the technical field of agricultural intelligence. The Internet of Things technology, the block chain and the artificial intelligence algorithm are integrated to improve monitoring accuracy and prevention timeliness, environment and plant states are acquired through the sensor and image data, safe storage of data is ensured by using the block chain, early recognition of diseases and pests is performed by using the convolutional neural network, and the accuracy of disease and pest control is improved. A disease risk index is calculated in combination with environmental parameters, a reinforcement learning algorithm dynamically optimizes a control strategy, control measures are automatically executed through Internet of Things equipment, an execution result is recorded on a block chain, in addition, the strategy is continuously adjusted according to a control effect evaluation result, intelligent and precise disease and pest management is realized, resource consumption is effectively reduced, and the economic benefit is improved. The traditional Chinese medicinal material production safety and efficiency are improved.

The invention relates to an intelligent monitoring system for prevention and control of diseases and insect pests for bean planting, in particular to the field of intelligent monitoring of prevention and control of agricultural diseases and insect pests, and can realize extremely early precise recognition and early warning of diseases and insect pests of bean crops. The weak lesion spectral features and the continuous deterioration trend of the plant can be sensitively captured in a stage which is difficult to perceive by naked eyes, real diseases and environmental interference are effectively distinguished, the system can automatically locate a suspicious lesion area by using a weak supervised learning mechanism and only needing image-level labeling, the dependence on expensive pixel-level labeling data is greatly reduced, and the accuracy of the system is improved. Finally, a high-confidence early warning signal is output through multi-source information collaborative decision, a scientific basis is provided for accurate and green prevention and control, blind pesticide application is effectively avoided, and crop health and yield are guaranteed.

The invention belongs to the technical field of plant genetic engineering, and particularly relates to a wheat magnesium transporter TaNIPA8-6B and application of a coding gene thereof to regulation and control of plant stripe rust resistance. Functional analysis is carried out on the wheat magnesium transporter TaNIPA8-6B by means of gene editing and overexpression, and it is found that the wheat magnesium transporter TaNIPA8-6B induces expression in both affinity and non-affinity system reactions of wheat and puccinia striiformis, so that a mutant plant of the gene editing and overexpression TaNIPA8-6B gene is created; according to the TaNIPA8-6B gene, the gene knockout mutant of the TaNIPA8-6B gene is identified to show susceptibility to stripe rust non-compatible races CYR23, the over-expression mutant plant shows disease resistance to stripe rust compatible races CYR32, the fact that the TaNIPA8-6B gene plays a positive regulation role in the disease resistance of wheat to stripe rust is clear, and a high-quality germplasm resource is provided for stripe rust resistance of wheat.

The invention relates to the technical field of peanut plant growth state intelligent monitoring, in particular to a peanut plant growth state intelligent monitoring method and system and electronic equipment. The method comprises the following steps: respectively acquiring visible light and near-infrared images, laser radar point cloud data, near-infrared spectra and microscopic images of peanut plants by using a multispectral camera, a laser radar, a near-infrared camera and a microscopic imager carried by a field robot; carrying out de-atomization and color correction on the image by adopting a self-adaptive illumination compensation algorithm; a laser radar point cloud is fused to construct a plant three-dimensional point cloud model; segmenting an overlapped leaf area based on a graph neural network, and extracting morphological characteristics of a single plant; the nitrogen content and the moisture content of the leaves are analyzed through near infrared spectroscopy, and early scabs are recognized in combination with microscopic imaging; and inputting the morphological characteristics and the physiological parameters into a growth state evaluation model, and outputting growth indexes and disease and pest early warning. According to the invention, automatic and refined monitoring and growth state comprehensive evaluation of peanut plant morphology and physiological parameters are realized.

The invention relates to the technical field of plant genetic engineering, and particularly discloses an alfalfa salt-alkali-resistant and low-temperature composite stress-resistant gene MsNCED5 and application of encoded protein thereof in improving salt-alkali-resistant and low-temperature composite stress-resistant capability of plants. The nucleotide sequence of the gene disclosed by the invention is as shown in SEQ ID NO.1, the full length is 1833 bp, and 610 amino acids are encoded. According to the invention, an MsNCED5 overexpression vector is constructed and medicago sativa is converted, so that an MsNCED5-OE transgenic line is successfully created, and the MsNCED5 gene expression quantity of the MsNCED5-OE transgenic line is obviously increased compared with that of a wild type. Under the salt-alkali and low-temperature composite stress, the transgenic plant has stronger stress tolerance compared with the wild plant, which indicates that the overexpression of the MsNCED5 gene improves the resistance of the plant to the salt-alkali and low-temperature composite stress. The MsNCED5 gene disclosed by the invention provides an important theoretical basis for researching an alfalfa stress resistance molecular mechanism and breeding.

The invention discloses Mucor irregularia and application thereof, the strain number of the Mucor irregularia is JSAFC 3408, the Mucor irregularia is preserved in China General Microbiological Culture Collection Center (CGMCC) on May 6, 2025, and the preservation number is CGMCC No.41982. The Mucor irregularia has the advantages that the Mucor irregularia has the advantages that the Mucor irregularia can be used for preparing the Mucor irregularia; according to the application, the soil around the pepper is separated and purified, so that the Mucor irregularia is obtained. The strain can inhibit the growth of the huanghuai glossospora, promote the development of the pepper and regulate the growth of plants, and has great significance for the development of a biocontrol fungicide for preventing and treating the pepper root rot in the future.

The invention relates to the technical field of saline-alkali soil treatment, and discloses a light and moderate saline-alkali soil alfalfa seedling protection and strong growth promotion planting method which comprises the following steps: S1, soil pretreatment and root zone microenvironment construction; s2, seed treatment and space-time double-salt-avoiding sowing; s3, microbial inoculum synergistic application; s4, water and fertilizer integration and accurate management; s5, dynamic regulation and control in the growth period, a low-salt root zone microenvironment is constructed through combination of physical obstruction and biological improvement, salt ascending is inhibited by using a slag salt isolation layer, fertility is improved by using an organic layer, and stress resistance is enhanced by adopting a salt-tolerant variety, climate window sowing and aerogel embedding fungicide; precise regulation and control are achieved through water and fertilizer integrated drip irrigation, the stability of a root zone is maintained by combining intertillage and directional topdressing, finally, the seedling emergence uniformity and the seedling stage survival rate are remarkably improved, and robust growth of plants in saline-alkali soil is promoted.

The invention relates to the technical field of molecular markers, in particular to an Indel molecular marker related to yellow leaves of a melon seedling growing point and application of the Indel molecular marker. The invention explores a key candidate gene MELO3C016136 for controlling the leaf color of the growth point of the muskmelon seedling, and develops an Indel molecular marker ygp2 for identifying the leaf color change of the growth point of the muskmelon seedling based on the key candidate gene MELO3C016136. The molecular marker ygp2 can be used for identifying the leaf color change character of the growth point of the muskmelon seedling, only one-time PCR amplification and polyacrylamide gel electrophoresis need to be carried out on the DNA of the plant to be detected, the identification result is reliable, the genotype of the target plant can be simply and conveniently identified, and the genotype identification result is completely consistent with the leaf color phenotype of the growth point of the seedling; important technical support is provided for creating new muskmelon germplasm with yellow seedling growing point leaves.

The invention discloses a key gene identification method related to tobacco nitrogen response, which comprises the following steps: S1, setting four nitrogen fertilizer gradient treatments on the basis of same phosphorus and potassium fertilization by adopting a field experiment of a completely random block; s2, randomly taking the 6th to 8th leaves of the five plants in each area, and dividing a sample into two parts: quickly freezing one part with liquid nitrogen, and storing at-80 DEG C for RNA (Ribonucleic Acid) extraction and transcriptome sequencing; one part is used for measuring the nitrogen content, and after baking and drying treatment, a KjeltecTM8100 automatic nitrogen analyzer is used for measuring; s3, nitrogen content determination: determining the nitrogen content in the treated sample by using an automatic nitrogen analyzer KjeltecTM8100; according to the method, high-throughput transcriptome sequencing and weighted gene co-expression network analysis (WGCNA) are combined, so that not only can gene expression maps of flue-cured tobacco leaves treated by different nitrogen fertilizers be comprehensively captured, but also gene modules with similar expression modes can be mined from a global perspective.

The invention belongs to the field of plant genetic engineering, and discloses application of a PtNF-YB9 gene of trifoliate orange in drought-resistant genetic improvement of plants. The PtNF-YB9 gene is a transcription factor gene which is separated and cloned from Poncirus trifoliata, and the sequence of the PtNF-YB9 gene is as shown in SEQ ID NO. 1. The gene or the homologous gene thereof is knocked out or inhibited in a plant, the drought resistance of the plant is remarkably reduced, and the drought resistance of the plant is remarkably enhanced by overexpressing the gene or the homologous gene thereof. The development and utilization of the genetic resource are beneficial to reducing the agricultural production cost and realizing the green and environment-friendly agricultural goal.

The invention provides a plant insect disease image identification method and system based on deep learning, and belongs to the technical field of deep learning, and the method comprises the steps: firstly obtaining a multi-source image set of a plurality of growth stages of a plant, including the whole, leaf and stem images of the plant, the growth stage time, and the shooting angle identification information; constructing a plant image time sequence association network to perform organ-level time sequence alignment processing to obtain an aligned image set and an organ association coefficient, performing cross-growth-stage focus feature association through the association coefficient to obtain a cross-stage focus association set and time sequence evolution information, and performing cross-growth-stage focus feature association; and inputting the association set into an exclusive deep learning model for feature aggregation and type matching to obtain a preliminary result, and finally performing organ adaptation verification on the preliminary result in combination with time sequence evolution information to generate a final identification result and a focus organ time sequence evolution atlas, thereby improving the accuracy and reliability of plant insect disease identification.

The invention discloses Mucor abundans and application of the Mucor abundans, the strain number of the Mucor abundans is JSAFC 2484, the Mucor abundans is preserved in the China General Microbiological Culture Collection Center on May 6, 2025, and the preservation number is CGMCC No. 41979. The Mucor abundans can be applied to the field of biological engineering. The biocontrol bacterium Mucor abundans JSAFC 2484 provided by the invention can effectively inhibit the growth of Fusarium equiseti, the inhibition rate of plate confrontation culture reaches 68.52%, meanwhile, extracellular metabolites secreted by the biocontrol bacterium Mucor abundans JSAFC 2484 can also significantly reduce the growth of the Fusarium equiseti, when the concentration of the extracellular metabolites of the JSAFC 2484 is 10 mL / 100 mL, the inhibition rate of the Fusarium equiseti reaches 76.35%, and when the concentration of the extracellular metabolites of the JSAFC 2484 is 100 mL / 100 mL, the inhibition rate of the Fusarium equiseti reaches 79.05%. Meanwhile, the plant growth promoting effect is achieved on pepper plants.

The invention relates to the technical field of disease monitoring, in particular to a disease monitoring method and system in the epimedium growth process, and the method comprises the steps: deploying a multi-source collection device in an epimedium planting area, and obtaining plant images in real time according to a preset time interval, the plant images including RGB images and multispectral images; performing image preprocessing on the acquired RGB image to obtain a standard plant image; acquiring plant growth time, performing morphological analysis on the standard plant image to extract growth characteristic parameters, and inputting the growth characteristic parameters and the growth time into a pre-constructed plant growth stage prediction model to acquire the epimedium growth stage. According to the disease monitoring method for the epimedium growth process provided by the invention, by fusing RGB and multispectral images, accurately extracting key features such as diseased leaves and areas, colors and shapes of the diseased leaves, and inputting a disease prediction model in a growth stage, intelligent discrimination of epimedium disease types and severity levels can be realized.

The invention discloses a method for predicting nitrogen oxide infection change of a plant based on an AI image in the technical field of plant research, and the method comprises the steps: building a dynamic mapping relation of morphological indexes-infection concentration and time; the image morphology of the plant under time lapse and / or other concentrations is directly predicted by inputting the current image of the plant, the plant tissue does not need to be damaged, the whole-stage dynamic monitoring of the same plant from the health state to the pollution stress can be realized through regular image acquisition, the interference of traditional chemical sampling on the plant growth is avoided, and the monitoring accuracy is improved. The method is particularly suitable for rare plant or long-term ecological research, the abstract RGB value and the nitrogen oxide concentration are converted into visual results such as a color gradient diagram and a dynamic feature point evolution curve, non-professionals can rapidly judge the pollution level through color depth and patch distribution, and the environment early warning response time is shortened.

A soybean cultivar designated 20201139 is disclosed. The invention relates to the seeds of soybean cultivar 20201139, to the plants of soybean cultivar 20201139, to the plant parts of soybean cultivar 20201139, and to methods for producing progeny of soybean cultivar 20201139. The invention also relates to methods for producing a soybean plant containing in its genetic material one or more transgenes and to the transgenic soybean plants and plant parts produced by those methods. The invention also relates to soybean cultivars or breeding cultivars, and plant parts derived from soybean cultivar 20201139. The invention also relates to methods for producing other soybean cultivars, lines, or plant parts derived from soybean cultivar 20201139, and to the soybean plants, varieties, and their parts derived from use of those methods. The invention further relates to hybrid soybean seeds, plants, and plant parts produced by crossing cultivar 20201139 with another soybean cultivar.

The invention relates to the technical field of gene editing, and particularly provides a method for creating herbicide-resistant rice through gene editing of an OsEPSPS gene promoter region, and the method is characterized in that WT / 29bp single allelic deletion mutation is introduced into the OsEPSPS gene promoter region, i.e., A in an OsEPSPS gene initiation codon ATG is 0 site, A in the OsEPSPS gene initiation codon ATG is 0 site, A in the OsEPSPS gene initiation codon ATG is 0 site, and A in the OsEPSPS gene initiation codon ATG is 0 site; 29bp is deleted from the 112nd site to the 1150th site at the upstream of the initiation codon ATG on one allele, and the other allele is kept unchanged. By introducing the single allelic deletion mutation, the rice can obtain resistance to EPSPS inhibitor herbicides, the resistance is identified in T0-generation plants carrying the mutation and can be stably inherited to offspring plants, and the application value is high for guaranteeing agricultural production safety and improving the use efficiency of the herbicides.

The invention belongs to the technical field of microorganisms, and discloses a brevibacterium coldtolerant strain TRM86011 and application of the brevibacterium coldtolerant strain TRM86011. The invention provides a strain of cold-resistant brevibacterium which is preserved in the China Center for Type Culture Collection (CCTCC), and the preservation number is CCTCC NO: M 2023038. The strain has the ability to grow in a saline-alkali environment, and can also produce siderophore, IAA and other agricultural growth-promoting beneficial components. Through verification, the brevibacterium coldtolerant can promote growth of wheat, corn, cotton and tomatoes in a salt stress environment, and plant growth limitation caused by salt stress is reduced. On the basis, the brevibacterium coldtolerant has a good application prospect in preparation of microbial fertilizers or microbial agents suitable for saline-alkali areas and the like.

The invention discloses an application of a CsESE3 gene or a protein coded by the CsESE3 gene in regulation and control of plant shoot development, and belongs to the technical field of plant genetic engineering. Traditional citrus crossbreeding is long in period of cultivating ideal plant type plants, low in selection efficiency and few in selectable cultivation characters. Manual shoot control is high in labor cost, and chemical shoot control has the risk of phytotoxicity. Aiming at the technical problems, the invention provides a new scheme for regulating and controlling the development of citrus branch tips based on CsESE3 gene expression: the development of the branch tips is obviously promoted after the expression of the CsESE3 gene is improved, so that the CsESE3 can become a target spot for regulating and controlling the development of the citrus branch tips.

The invention belongs to the technical field of plant growth-promoting bacteria, and particularly relates to protozoa trichomonad cooperating with bacillus to prevent and control cucumber fusarium wilt and application of the protozoa trichomonad. The invention provides a strain of protozoa trichomonas mtoleri (Cercomonas mtoleri) B5, and the preservation number of the strain is CCTCC (China Center for Type Culture Collection) N0: V202502. The protozoa trichomonad B5 provided by the invention can induce spore germination of a biocontrol strain bacillus velezensis SQR9 and improve the rhizosphere colonization capability of the biocontrol strain SQR9. The protozoa trichomonad B5 and the bacillus velezensis SQR9 are jointly inoculated in cucumber fusarium wilt continuous cropping soil, and the fusarium wilt morbidity of cucumber plants can be effectively reduced.

The invention provides a planting device for releasing speed-controlled aquatic plants. The planting device comprises a planting pot for planting submerged plants; the main body is of a double-ship structure; the clamping and putting mechanism is arranged on the main body, the clamping and putting mechanism comprises a rack, a conveying mechanism and a grabbing mechanism used for grabbing the planting pots, the grabbing mechanism is arranged on the rack in a sliding mode so as to move left and right, the conveying mechanism conveys the planting pots to the position below the grabbing mechanism, and the grabbing mechanism grabs the planting pots to the planting mechanism; the planting mechanism comprises a hollow sleeve, submerged plants of the conveying mechanism are moved to the position over the hollow sleeve through a grabbing mechanism, an annular pipe and air bags are further embedded in the inner wall of the hollow sleeve, the air bags are evenly and annularly distributed on the inner circumferential wall of the hollow sleeve, and the annular pipe is communicated with the air bags; the air pump is started to convey air into the annular pipe to inflate the air bag, and the air bag expands after being inflated to extrude the planting pot in the hollow sleeve, so that the planting pot slowly descends, and the planting work of plants is completed.

The invention discloses an upland cotton GhCRK29 gene as well as an encoding protein and application thereof, the GhCRK29 gene is separated from cotton, the nucleotide sequence of the GhCRK29 gene is as shown in SEQ ID No.1, and the amino acid sequence of the encoding protein of the GhCRK29 gene is as shown in SEQ ID No.2. According to the invention, a virus-induced gene silencing technology and a transgenic overexpression technology are further utilized to carry out preliminary research on the function of the cotton GhCRK29 gene in cotton verticillium wilt resistance, and a result shows that the verticillium wilt resistance of a cotton seedling plant is obviously reduced after the GhCRK29 gene in cotton is silenced; after the GhCRK29 gene is over-expressed in arabidopsis thaliana or cotton, the verticillium wilt resistance of arabidopsis thaliana or cotton is remarkably improved, and the resistance of a GhCRK29 gene forward regulation plant to verticillium dahliae is determined; the invention has application prospects in the aspects of improving the verticillium wilt resistance of plants or cultivating verticillium wilt resistant plant varieties and the like.

The invention discloses mucor oosperm and application of the mucor oosperm, the bacterial strain number of the mucor oosperm is JSAFC 2483, the mucor oosperm is preserved in the China General Microbiological Culture Collection Center on May 6, 2025, and the preservation number is CGMCC No.41980. The mucor oosperm has the advantages that the mucor oosperm can be used for preparing the mucor oosperm; the biocontrol bacterium Mucor moelleni JSAFC 2483 provided by the invention can effectively inhibit the growth of Fusarium equiseti, the inhibition rate of plate confrontation culture reaches 54.90%, meanwhile, extracellular metabolites secreted by the biocontrol bacterium Mucor moelleni JSAFC 2483 can also significantly reduce the growth of the Fusarium equiseti, when the concentration of the extracellular metabolites of the JSAFC 2483 is 10 mL / 100 mL, the inhibition rate of the Fusarium equiseti reaches 53.98%, and when the concentration of the extracellular metabolites of the JSAFC 2483 is 100 mL / 100 mL, the inhibition rate of the Fusarium equiseti reaches 56.64%. Meanwhile, the plant growth promoting effect is achieved on pepper plants.

The invention provides an early warning method and system for greenhouse vegetable diseases and insect pests, and relates to the technical field of agricultural informationization. Environmental parameters and vegetable images are collected, a plant distribution network is established, and the propagation influence degree is calculated; analyzing an environmental suitability index of a pest propagation mechanism based on the environmental parameters; extracting disease features by using multi-source image fusion to determine an initial focus; calculating the propagation probability by combining the propagation influence degree and the environmental suitability degree, and constructing a dynamic propagation path prediction map; determining a prevention and control priority and generating partition early warning information; finally, relevant parameters are optimized according to the actual prevention and control effect, and accurate and timely disease and pest early warning is achieved.

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 relates to the technical field of agricultural planting, in particular to a method for preventing and treating watermelon fusarium wilt by using a green bactericide, which comprises the following steps: preparing the green bactericide which comprises the following components in percentage by mass: 18-25% of composite plant source active component consisting of water lettuce extract, enteromorpha polysaccharide and field horsetail flavone; 20%-30% of an antagonistic bacterium compound preparation, wherein the antagonistic bacterium compound preparation comprises bacillus pumilus and trichoderma; 38%-45% of a nano-carrier, wherein a chitosan-sodium alginate compound is used as an embedding material; and the balance of auxiliary components. Applying the green bactericide to watermelon plants; through component optimization and a synergistic effect, compared with the prior art, the composition has the remarkable advantages that the safety is high, all the components are from natural plants or microorganisms, no chemical pesticide residue exists, the composition is healthy to human bodies and environmentally friendly, and the problems of drug resistance and soil pollution caused by chemical agents can be avoided.

The invention discloses a growth-promoting rhizosphere bacterium streptomyces cerevisiae QS9-7 and application thereof, and belongs to the technical field of microorganisms. According to the invention, a strain of Streptomyces setonii QS9-7 is obtained through separation, and the preservation number of the Streptomyces setonii QS9-7 is CGMCC (China General Microbiological Culture Collection Center) No.32329. Experiments show that the strain QS9-7 has a relatively strong inhibition effect on various plant pathogens, and shows excellent biocontrol bacterium potential. The strain can effectively improve radicle length, germ length, lateral root number and germination rate of plant seeds and plant height and stem diameter of plant seedlings, obviously promotes plant growth, and has high application value in green prevention and control of plant diseases.