27 results about "Rice false smut" patented technology

This invention provides a method for segmenting infected rice panicles based on a progressive fusion network of receptive fields. The method includes: acquiring an image of rice to be detected; processing the rice image using a trained rice false smut segmentation model to obtain a segmentation mask corresponding to the rice image; wherein the rice false smut segmentation model includes a feature extraction unit, a detail enhancement unit, and a segmentation head unit. In the feature extraction unit, a dynamic receptive field module processes some shallow feature maps to obtain enhanced shallow feature maps, thereby enhancing the perception ability of shallow features for small lesions and irregular edges. This method enhances shallow features through the dynamic receptive field module, improving the accuracy of capturing small lesions and irregular edges; the detail enhancement unit performs adaptive weighted fusion of multi-scale features, preserving edge details and incorporating deep semantics; the segmentation head unit restores spatial resolution, achieving clear segmentation of lesion boundaries and solving the problem of easily missed detection of small lesions.

This invention provides compounds and methods of application that possess both broad-spectrum antifungal activity and plant-induced resistance, belonging to the field of agricultural technology. It addresses the problem that "traditional pure immune inducers must be applied before disease onset, making it difficult to meet the full-cycle control needs of disease prevention and treatment in the field." Compared to the previously developed PC1 and PC20, the two compounds of this invention, 2,4-dibromo-6-nitrophenol and 7-deazon-2'-deoxy-7-iodoadenosine, can both inhibit the growth of rice blast fungus and significantly improve rice resistance to rice blast through foliar spraying, meeting the full-cycle control needs of disease prevention and treatment in the field. Furthermore, these two compounds can directly inhibit the growth of various fungal pathogens such as peanut white mold, tomato gray mold, wheat scab, rice bakanae disease, rice false smut, mango malformation, and banana wilt.

The invention belongs to the field of rice molecular breeding, and particularly relates to an SNP molecular marker for identification or auxiliary identification of rice false smut resistance and application of the SNP molecular marker. The technical problem to be solved by the invention is how to identify or assist in identifying the resistance of the rice false smut. According to one scheme, the composition for detecting the polymorphism or genotype of the SNP-2585372 site in the rice genome is applied to identification or auxiliary identification of the rice false smut resistance, the SNP-2585372 site is an SNP site in the rice genome, and the nucleotide type of the SNP-2585372 site is T or C and is the 30th nucleotide of SEQ ID No.1. The method can be used for predicting the resistance of the rice to the false smut, and has important application value in the research of exploring the germplasm resources of the false smut-resistant rice and breeding the false smut-resistant rice variety.

The application discloses a propiconazole-azoxystrobin- clothianidin seed treatment suspending agent and a preparation method and application thereof, and belongs to the technical field of pesticide preparations; the agent takes propiconazole, azoxystrobin and clothianidin as active ingredients, takes beta-nicotinamide mononucleotide (NMN) as a functional antimicrobial component, and is supplemented with styrene-maleic anhydride copolymer sodium salt, fatty alcohol polyoxyethylene ether, xanthan gum, magnesium aluminum silicate, glycerol, polydimethylsiloxane defoaming agent, sodium benzoate, polyvinyl alcohol and deionized water to prepare the agent. The application is suitable for seed coating treatment for preventing and treating rice false smut, thrips and wheat sharp eyespot and aphids; NMN promotes the accumulation of phenolic compounds in the phloem of plants, and cooperates with clothianidin on the same insecticidal target, thereby significantly improving the prevention and treatment effect on aphids and thrips; the degradation product of NMN promotes the proliferation of beneficial microorganisms in the rhizosphere, improves soil enzyme activity, and realizes soil micro-ecological restoration.

The invention belongs to the field of rice molecular breeding, aims to solve the technical problem of how to identify or assist in identifying the resistance of rice false smut, and particularly relates to an SNP (Single Nucleotide Polymorphism) molecular marker related to the resistance of the rice false smut and application of the SNP molecular marker. According to one scheme, the application of the composition for detecting the polymorphism or genotype of the SNP-2661279 site in the rice genome in identification or auxiliary identification of the rice false smut resistance is provided, the SNP-2661279 site is an SNP site in the rice genome, the nucleotide type of the SNP site is A or G, and the SNP site is the 30th nucleotide in SEQ ID No.1. The method can be used for predicting the resistance of the rice to the false smut, and has important application value in the research of exploring the germplasm resources of the false smut-resistant rice and breeding the false smut-resistant rice variety.

The invention relates to the technical field of agricultural disease monitoring, in particular to an intelligent monitoring method and system for rice false smut based on hyperspectrum. The method comprises the following steps: acquiring point spectrum data of rice ears from a rice jointing and ear growing period to a mature period through a ground portable surface feature spectrometer; the unmanned aerial vehicle flies at the low altitude of 5 m and the high altitude of 30-50 m to collect hyperspectral image data, meteorological data are recorded synchronously, and image geographical registration is achieved through ground control points arranged at the interval of 50 m. According to the invention, aiming at the core limitation of the prior art, a multi-source hyperspectral data collaborative acquisition system of'ground object spectrometer-low-altitude unmanned aerial vehicle-high-altitude unmanned aerial vehicle 'is constructed, point-level precise spectrums, single-plant-level high-resolution images and area-level wide coverage data are integrated, multi-scale data coverage from a single plant to a whole domain is realized, and the multi-scale data coverage is realized. The contradiction between coverage and precision of a single data source in the prior art is solved.

The application discloses Bacillus velezensis RMM03 and application of a product thereof in prevention and treatment of rice smut. Bacillus velezensis ) RMM03, which is preserved in the Guangdong Microbial Culture Collection Center on November 19, 2024, is located at No. 59 Building, 5th Floor, Guangzhou Xianlie Middle Road 100 Courtyard, and has a preservation number of GDMCC No. 65510. Indoor and field tests show that the bacterium has a significant inhibiting effect on the growth of a rice smut fungus, and can be prevented and treated 10-15 days before a break, 0-5 days before the break and 0-5 days after heading, so that a long prevention and treatment time span is achieved, and high yield and high quality of rice are effectively ensured.

This invention belongs to the field of plant genetic engineering technology, specifically relating to a method for improving the disease resistance of rice. SCRE10 Genes and their applications, the aforementioned SCRE10 The base sequence of the gene is shown in SEQ ID NO.1, and the amino acid sequence is shown in SEQ ID NO.2. This invention utilizes a dexamethasone-induced expression mechanism. SCRE10 The transgenic rice plants were found to significantly induce... PR Gene expression and reactive oxygen species surges, enhancing rice resistance to rice false smut and bacterial blight. This invention demonstrates heterologous induction of rice false smut pathogen expression. SCRE10 Genes have the function of positively regulating the disease resistance of rice. SCRE10 Genes can be used to improve the disease resistance of rice, which is of great significance for the creation of disease-resistant rice germplasm.

The invention discloses an antagonistic indigenous bacterium UVK8 for efficiently preventing and treating rice false smut and application of the antagonistic indigenous bacterium UVK8. The antagonistic indigenous bacterium UVK8 is classified and named as bacillus amyloliquefaciens, and is preserved in the China General Microbiological Culture Collection Center on June 11, 2025, the preservation number is CGMCC NO.34861, and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing. The antagonistic indigenous bacterium UVK8 shows excellent antagonistic action and bacteriostatic activity on rice ustilaginoidea virens, watermelon fusarium oxysporum, peach monilinia fusarium, banana fusarium oxysporum, exserohilum turcicum, bipolaris maydis and orchid fusarium oxysporum, and has relatively high biofilm content and certain rice straw degradation capability. Field test results show that the antagonistic indigenous bacterium UVK8 has a good prevention and treatment effect on rice false smut, the disease clump prevention effect reaches 86.28%, and the clump disease grain number prevention effect reaches 58.03%. Therefore, the antagonistic indigenous bacterium UVK8 has an important biocontrol application value.

The application discloses a kind of electrolytic water spraying device and spraying method for rice smut prevention, including frame body, frame body both ends have wheel body, frame body outside also has the connecting end for connecting frame body with other equipment, frame body is equipped with multiple groups of sliding control parts, control part includes: control shaft, setting on frame body;Spraying end, installed on the upper end of control shaft, outside has the pipeline for transmitting electrolytic water, for generating electrolytic water spray;External force generating part, set in the lower end of control shaft, as elliptical shape with elasticity, major axis end is contacted with rice;Vibration generating part.Compared with prior art, the advantages of the present application are that the reciprocating vibration of the external force generating part combined with the vibration generating part realizes the physical influence on the crown layer and the leaf sheath wrapped around the young ear, forcing the electrolytic water droplets to penetrate into the ear part that is difficult to cover by traditional spraying, directly contacting the pathogenic bacteria, and significantly improving the sterilization efficiency.

The invention belongs to the technical field of plant protection and biological control, and particularly relates to application of linalyl acetate and a method for controlling field rice false smut and rice blast. During field prevention and treatment, linalyl acetate, Tween-80 and water are mixed to prepare a solution; the rice is regularly treated, and the effect of preventing and treating field rice false smut and rice blast can be achieved. When the field rice false smut is prevented and treated, the final concentration of the linalyl acetate is 0.7 mg / L-0. 8mg / L; the final concentration of linalyl acetate is 1.4000 mg / L to 1.575 mg / L when the linalyl acetate is used for preventing and treating field rice blast. Researches show that linalyl acetate has a strong inhibition effect on hyphae and conidia of rice false smut and rice blast, and can prevent and treat rice false smut and rice blast.

The application discloses a bactericidal composition containing WML-01 and fludioxonil, and active ingredients of the bactericidal composition include WML-01 and fludioxonil, and the mass ratio of the WML-01 and the fludioxonil is 10:1-1:10. The bactericidal composition can be used for preventing and treating rice false smut, wheat basal stem rot, wheat scab, soybean root rot, rice blast, pepper anthracnose and rape sclerotinia rot, can effectively solve the problems of less bactericides for preventing and treating the diseases, unstable prevention and treatment effect, high prevention and treatment cost and drug resistance in current production, and has a wide market application prospect.

The utility model discloses a kind of rice scabby ball collecting devices, including protective device, shearing device and collecting device, shearing device and collecting device are all set in protective device. Shearing device includes scissors, spring and control line, scissors includes first handle, first handle, second handle and second handle, first handle and second handle are connected by spring, pulley is provided on second handle, one end of control line passes through pulley and is fixedly connected with first handle, the other end passes out protective device and is provided with buckle. Collecting device includes flow guide groove, hopper and collecting bag, the upper surface of flow guide groove is fixedly connected with first handle by connecting rod, lower surface is connected with hopper, the opening of flow guide groove is towards hopper, the lower end of hopper is connected with collecting bag, the side of hopper is connected with protective device by support rod. The device compact structure, easy operation, can effectively collect rice scabby ball and prevent pathogenic bacteria from scattering, improve collection efficiency, reduce labor intensity, ensure operation safety.

The application discloses a compound composition with the effects of preventing and treating rice smut and improving quality and yield, aims to provide a compound composition which can not only effectively prevent and treat rice smut, but also significantly promote rice growth, improve yield, and simultaneously increase the content of calcium and phosphorus in brown rice, so as to realize the triple targets of 'preventing diseases, increasing yield and improving quality', and the technical scheme is composed of active component A and component B with a mass ratio of 0.5-5:10; the active component A is one or any combination of bacillus gorillae and a fermentation liquor of bacillus gorillae; the component B is composed of tryptophan, rapeseed oil, phosphorite gypsum, wood ash and tripterygium wilfordii extract; and the application belongs to the technical field of biotechnology.

The invention relates to the related field of agricultural planting, in particular to a method for rescuing late rice from being damaged by cold dew during heading and grouting, which comprises the following steps: S1, after late rice is damaged by cold dew, spraying instant boron on leaf surfaces to improve photosynthetic efficiency; s2, spraying a water-soluble foliar fertilizer containing amino acid to improve the chlorophyll content and growth vitality of the plants; s3, water management of intermittent irrigation is conducted to maintain root activity, and the mud temperature decreasing speed is slowed down through deep water irrigation under the low-temperature condition; s4, carrying out pest control, and controlling occurrence of stem borers, plant hoppers, rice blast and false smut. Through foliage instant boron and amino acid water-soluble fertilizer application, intermittent irrigation, low-temperature deep water irrigation management and targeted pest control, the photosynthetic efficiency is improved, the stress resistance is enhanced, grain filling is guaranteed, and the maturing rate and the yield stability are improved.

The invention discloses identification of nucleotide point mutation of a gene FfMyosin-5 related to fusarium moniliforme myosin 5 and application of the gene FfMyosin-5 in monitoring of resistance of a bactericide JS399-19, and particularly discloses a molecular detection method for identifying drug resistance of 422-site or 218-site amino acid mutation of the fusarium moniliforme FfMyosin-5 gene to JS399-19 and a special primer of the molecular detection method. The molecular detection method provided by the invention is high in sensitivity, good in stability and short in detection period, and can be used for monitoring the resistance gene frequency and the resistance generation and development condition of the field rice fusarium moniliforme to the bactericide JS399-19 in a high-throughput manner.

This invention discloses the application of a *Oligotrophomonas geniculata* strain and its fermentation broth in the control of rice false smut and rapeseed sclerotinia stem rot, relating to the field of microbial technology. The *Oligotrophomonas geniculata* strain has the preservation number CCTCC NO: M20232222. The *Oligotrophomonas geniculata* strain provided by this invention exhibits good biocontrol efficacy and high safety in the control of rice false smut and sclerotinia stem rot. The application of this invention can significantly reduce the use of biochemical agents in the control of rice and rapeseed diseases. Furthermore, this strain can also be applied to the control of peach brown rot with significant effects.

The invention belongs to the technical field of molecular biology, and particularly relates to application of a UvMCM1 gene in inhibition of biosynthesis of melanostin and / or prevention and treatment of false smut, and the base sequence of the Uvmcm1 gene is as shown in SEQ ID NO.1. The invention also relates to application of the UvMCM1 gene in inhibition of biosynthesis of melanostin and / or prevention and treatment of false smut. The Uvmcm1 gene is knocked out through a CRISPR / Cas9 (clustered regularly interspaced short palindromic repeats / CRISPR associated 9) technology, and a mutant knockout Uvmcm1 strain is obtained. The detection on the biosynthesis and pathogenicity of the ustilaginoidea virens shows that compared with a wild strain, the biosynthesis and pathogenicity of the ustilaginoidea virens in the Uvmcm1 mutant are obviously reduced.

The invention discloses application of a kadsura coccinea extract in preparation of a bactericide for preventing and treating plant diseases caused by pathogenic fungi and oomycetes. The kadsura coccinea extract disclosed by the invention has the effects of inhibiting germination of conidia of fungi and oomycetes, growth of bud tubes or formation of appressorium and growth of nutritional hyphae, and can effectively prevent growth of pathogenic bacteria and infection of host plants; the bactericidal composition has certain prevention and treatment effects on rice blast, rice false smut, potato late blight, cucumber anthracnose, grape anthracnose, corn ear rot, pepper phytophthora blight and camphor tree phytophthora blight, and provides possibility for developing botanical bactericides with various effective components, efficient prevention and treatment effects and broad-spectrum prevention and treatment objects.

The invention discloses a microbial agent for preventing and treating soil-borne diseases of food crops as well as a preparation method and application of the microbial agent, and belongs to the technical field of microorganisms. The microbial agent for preventing and treating the soil-borne diseases of the grain crops comprises the following raw materials in parts by weight: 40-50 parts of a functional microbial agent, 20-30 parts of a carrier, 5-8 parts of a protective agent, 5-8 parts of a nutritional additive and 1-3 parts of a dispersing agent, and the functional microbial agent comprises achromobacter xylosoxidans, streptomyces caucaucus and trichoderma hamatum. The three strains in the microbial agent cooperate to achieve a synergistic effect, the disease-resistant effect is remarkable, wheat take-all, wheat sharp eyespot, rice bakanae disease and rice false smut are effectively prevented and treated, especially the inhibition effect on the rice false smut is optimal, the problems of high incidence of soil-borne diseases, serious successive cropping obstacles, chemical pesticide pollution and the like of food crops are effectively solved, and the microbial agent is worthy of popularization and application. Finally, the comprehensive effects of disease prevention, yield conservation, quality improvement, efficiency improvement and environmental protection are achieved, and the method has important significance for guaranteeing safe production of grains and sustainable development of agriculture.

The invention belongs to the technical field of plant biology, and particularly relates to application of a rice OsANR1 gene in regulation and control of false smut resistance. According to the invention, the OsANR1 gene is screened and identified from rice, and is used for coding an amino acid sequence shown as SEQ ID NO: 2. Results of embodiments show that after rice is infected by ustilaginoidea virens, the expression quantity of the OsANR1 gene is reduced, and after the OsANR1 gene is knocked out through CRISPR / Cas9, the resistance of an OsANR1 mutant strain to the ustilaginoidea virens is remarkably enhanced. OsANR1 is a negative regulatory factor of rice for resistance response to false smut, and a new genetic resource is provided for green prevention and control and molecular improvement of false smut.

The application discloses application of Pantoea agglomerans RMM02 and a product thereof in prevention and treatment of rice smut. Pantoea agglomerans The classification name of the Pantoea agglomerans RMM02 is , the preservation number is GDMCC No. 65516, the preservation unit is Guangdong Microbial Culture Collection Center, and the preservation time is November 29, 2024. The Pantoea agglomerans RMM02 is separated from a soil of a rice smut occurrence plot, and is screened through indoor confrontation test and has significant inhibitory activity on Ustilaginoidea virens. Through indoor bacteriostatic test, it is shown that the active bacteria have significant inhibitory activity on Ustilaginoidea virens. Through indoor and field tests, it is shown that the bacteria have significant inhibitory effect on growth of Ustilaginoidea virens, and can control development of a disease during a field smut occurrence period. A biocontrol fungicide prepared after fermentation of the bacteria can effectively prevent and treat smut hazards, and guarantees high yield and high quality of rice.

The application discloses a new rice variety breeding method for resisting rice smut and a misting inoculator, relates to the technical field of rice breeding, and comprises the following steps: (1) hybrid breeding of rice smut-resistant rice varieties; (2) single-plant selection of resistant varieties in a disease nursery; (3) rice smut resistance identification through misting inoculation; and (4) quality trait analysis to obtain a new rice variety resistant to rice smut and having high quality. The application screens rice varieties resistant to rice smut through multi-generation hybrid breeding and single-plant selection under natural disease infection conditions. The misting inoculation method is adopted to uniformly distribute rice smut chlamydospores in the air, and then the rice is contacted with the air, and the disease resistance is evaluated through moisture and heat preservation treatment. The application can efficiently obtain a new rice variety resistant to rice smut and having high quality, can realize improvement of inoculation controllability, cost saving, uniform inoculation, stable effect, enhancement of the anti-infection capacity of the new variety, and can breed a new rice variety with early maturity and high yield.

This invention discloses a rapid detection method for rice blight pathogens based on RPA-CRISPR / Cas12b technology, belonging to the field of nucleic acid detection technology. The reagent combination includes specific RPA primer pairs (SEQ ID NO.1 and SEQ ID NO.2) and sgRNA (SEQ ID NO.3). The method combines recombinase polymerase amplification (RPA) with CRISPR / Cas12b technology. RPA isothermally amplifies the target nucleic acid, and the Cas12b / sgRNA complex recognizes the amplified product and activates its trans-cleavage activity, thereby cleaving a fluorescent reporter molecule to generate a signal. This invention integrates an optimized reaction system into a centrifugal microfluidic chip, achieving fully automated closed-loop detection with "sample in, result out." The method can be completed within 30 minutes, with a sensitivity of up to 0.156 pg / reaction, high specificity, and is suitable for rapid detection in fields, ports, and other on-site locations.

The invention discloses application of a rice OsCBSX3 gene in improving resistance of rice to ustilaginoidea virens, and belongs to the technical field of gene engineering. The nucleotide sequence of the CDS region of the rice OsCBSX3 gene is as shown in SEQ ID NO. 2. The research finds that the OsCBSX3 gene is related to the resistance of the rice to the false smut, the defense capability of the rice to the false smut is reduced by mutation of the OsCBSX3 gene, and the disease resistance of the rice to the false smut is remarkably improved by overexpression of the OsCBSX3 gene. Therefore, the rice OsCBSX3 gene can be used for improving the resistance of rice to ustilaginoidea virens and diseases caused by the ustilaginoidea virens.

This invention discloses a microbial agent for controlling soil-borne diseases of grain crops, its preparation method, and its application, belonging to the field of microbial technology. The microbial agent for controlling soil-borne diseases of grain crops of this invention comprises the following raw materials in parts by weight: 40-50 parts of functional microbial agent, 20-30 parts of carrier, 5-8 parts of protectant, 5-8 parts of nutrient adjuvant, and 1-3 parts of dispersant. The functional microbial agent includes *Achromobacterium xyloseoxidans*, *Streptomyces caudatus*, and *Trichoderma hookeri*. The three strains in the microbial agent of this invention work synergistically to achieve significant disease resistance, effectively controlling wheat take-all, wheat sheath blight, rice bakanae disease, and rice false smut, especially showing the best inhibitory effect on rice false smut. It effectively solves problems such as high incidence of soil-borne diseases in grain crops, severe continuous cropping obstacles, and chemical pesticide pollution, ultimately achieving a comprehensive effect of "disease prevention and yield protection, quality improvement and efficiency enhancement, and green environmental protection," which is of great significance for ensuring food security and sustainable agricultural development.

The application belongs to the technical field of biology, and specifically discloses a Serratia plymuthica R72, which is preserved in the China Center for Type Culture Collection, and the preservation date is February 2, 2026, and the preservation number is CCTCC M 2026311; can be applied to the prevention and treatment of atractylodes rhizome root rot, and the prevention and treatment effect on the main pathogenic bacteria of atractylodes rhizome root rot, i.e., Fusarium oxysporum, is 89.3% in a plate confrontation test; meanwhile, the Serratia plymuthica R72 provided by the application has strong antagonistic effects on the pathogenic bacteria of rice false smut, sclerotinia sclerotiorum, sclerotinia sclerotiorum, tomato gray mold, melon fruit rot, brassica nigra, rice blast, rice sesame leaf spot, and tomato wilt, and the inhibition rate is more than 88%.