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94 results about "New disease" patented technology

Rice leaf blast disease resistance identification grading method based on multi-scale hyperspectral image processing

The invention discloses a rice leaf blast disease resistance identification grading method based on multi-scale hyperspectral image processing. Hyperspectral images of rice leaves with different resistance grades infected by rice blast are colleted by a hyperspectral imaging system. Spectral features of rice leaf blast disease spots and a normal position area of interest are analyzed at leaf scale, two wave bands with greater differences are obtained, two-dimensional scatter plot analysis of the two wave bands is made, and hyperspectral images only containing the disease spots are extracted. And then principal component analysis (PCA) is made at a disease spot scale, a principal component image which is beneficial for segmentation of brown disease spots and grey disease spots is obtained, and the grey disease spots are segmented out through an OTSU method. Finally, rice leaf blast disease resistance grading is conducted according to two parameters of elongation rate and suffered rate. With the rice leaf blast disease resistance identification grading method based on the multi-scale hyperspectral image processing, workload of resistance identification can be reduced, accuracy of resistance evaluation is improved, reasonable promotion and use of new disease-resistant varieties are supplied with scientific basis, and detection of rice leaf blast disease degree in the field is supplied with research foundation.
Owner:SOUTH CHINA AGRI UNIV

Multi-gene high rice blast resistance material breeding method adopting marker assisted selection

The invention relates to a multi-gene high rice blast resistance material breeding method adopting marker assisted selection, and belongs to the field of rice breeding. According to the method, specific molecular marker assisted selection of rice blast resistance genes pita and pi5 is adopted, field resistance identification is combined, and accordingly, a new disease-resistant variety can be bred effectively. The method comprises implementation modes as follows: 1, parents P1 and P2 containing the rice blast resistance genes pita and pi5 respectively are hybridized with a susceptible parent Liaoxing 1 to establish a resistant and susceptible offspring group; 2, extraction of DNA of single resistant and susceptible offspring, PCR (polymerase chain reaction) amplification and electrophoretic analysis of different markers are performed; 3, the parents P1 and P2, the susceptible variety Liaoxing 1 and the single plant of the hybridized offspring group are planted in a rice blast high incidence area Donggang, Dandong, and leaf blast and spike and stem blast resistance identification is performed at a seedling stage and a maturation stage respectively. In combination of the resistance gene marker selection, the new multi-gene rice blast resistance variety containing pita and pi5 is directionally improved and cultivated.
Owner:天津天隆农业科技有限公司

Polygalacturonase arrestin gene CaPGIP1 and disease resistance technology thereof

The invention belongs to the field of plant biotechnology, in particular provides a polygalacturonase arrestin gene CaPGIP1 cloned from hot pepper, the gene can specially inhibit the activity of polygalacturonase (PGs) secreted by pathogenic bacteria. The invention provides the function verification techniques based on the coding of the gene, such as protein making, enzyme activity testing, gene silencing, transgenic excessive expression and the like and the application of the techniques. Based on the gene and protein operation technology, the CaPGIP1 gene is proved to effectively participate in the defense reaction of hot pepper under the induction of a stress facto, and can inhibit the activity of polygalacturonase (PGs) secreted by various pathogenic bacteria. The gene silence and transgenic technology are further used for proving that the silence or less expression of the gene in the hot pepper reduces the disease resistance of a host, and the excessive expression of the gene in the transgenic tobacco can enhance the resistance; therefore, the gene codes an important disease-resistance related protein. The invention provides an important technological reserve for transforming the polygalacturonase arrestin (PGIP) gene and cultivating a new disease-resistant variety.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Public opinion prediction method and device, terminal and storage medium

The invention discloses a public opinion prediction method comprising the steps of receiving at least one keyword of a disease input by a user; determining a data source related to the keyword in theInternet, and crawling disease data related to the keyword from the data source by using a crawler program; analyzing the disease data to acquire a public opinion factor of the disease; performing data cleaning and abnormal value treatment on the public opinion factor of the disease; performing data standardization on the public opinion factor of the disease that is subjected to data cleaning andabnormal value treatment to acquire new disease data; and computing a derived variable of the public opinion factor of the disease according to the new disease data, and predicting the disease according to the derived variable. The invention also provides a public opinion data prediction device, a terminal and a storage medium. According to the method, device terminal and storage medium provided by the invention, the relatively complete disease data can be crawled, the disease data can be handled, deeply analyzed and computed, and thus the purpose from basic data display to decision data display is achieved, and the reference base is provided for disease prediction.
Owner:PING AN TECH (SHENZHEN) CO LTD

Easily-wearable medical latex glove and using method thereof

The invention relates to an easily-wearable medical latex glove and a using method thereof. The inner side of the glove body is fixedly provided with a middle easily-wearable device. The inner side ofa flanging is fixedly provided with a bottom easily-wearable device. The inner sides of a thumb glove, an index finger glove, a middle finger glove, a fourth finger glove and a little finger glove are fixedly provided with a top easily-wearable device. The middle easily-wearable device is connected with the bottom easily-wearable device and the top easily-wearable device. The middle easily-wearable device, the bottom easily-wearable device and the top easily-wearable device are used for overcoming a problem that the wearing of the glove is hindered in the wearing process, and greatly improving the wearing speed and efficiency. The wearing is easy and troubles are avoided. Talcum powder does not need to be used firstly, a risk of producing new diseases is avoided, and the wearing is successful once without the repeated humidification treatment to the glove. A risk of infection is greatly reduced, and the success rate of the wearing is high, so the internal contamination is difficultlycaused by a source of infection, and the dissemination of pollutants outside the glove is avoided as possible while the glove is taken off.
Owner:安徽安宇乳胶制品有限公司

Sludge-based disease-resistant seedling raising substrate production method

The invention relates to a sludge-based disease-resistant seedling raising substrate production method. The method is characterized by comprising the following steps: uniformly mixing waste materialssuch as mushroom residue particles, agricultural straw crushed substances and sawdust powder with fly ash, sludge and biological control microbial inoculum to obtain a product P1; performing aerobicfermentation on the product P1, and turning and throwing the product P1 every 7 days by a turning and throwing machine to obtain a product P2; sieving a product P3, returning oversize to step S4 for mixing, compounding throughs with perlite, vermiculite, coconut shell silk and trace elements to obtain a matrix P, and adjusting pH and EC of the matrix P to obtain a seedling raising matrix finishedproduct. The invention provides the sludge-based disease-resistant seedling raising substrate production method. Sludge and agricultural waste are used as raw materials, the disease-resistant seedlingraising substrate is produced by oxygen fermentation of microorganisms such as mushroom residue microorganisms and biological control strains, the problem of difficulty in sludge treatment at presentis solved, and a brand-new disease-resistant seedling substrate is provided for agricultural production.
Owner:YANGTZE UNIVERSITY

GHP and GCN fused Chinese and western medicine relocation method and system and storage medium

The invention discloses a GHP and GCN fused Chinese and western medicine relocation method and system and a storage medium. The relocation method comprises the following steps: collecting multi-source and multi-mode heterogeneous data; gHP-GCN Chinese and western medicine relocation model construction specifically comprises the steps of global heterogeneous pharmacological network GHP construction, global heterogeneous pharmacological network and graph convolutional neural network fusion to form a GHP-GCN model, and "monarch, minister, assistant and guide" and "node semantic neighbor" dual weighted constraint optimization of the GHP-GCN model; constructing a training set and learning and reasoning a GHP-GCN model; contribution degree calculation and result analysis; and verifying and optimizing a result. The method can be applied to Chinese and western medicine relocation research, can predict potential and new drug-target protein/gene, target protein/gene-disease and drug-disease association, identifies new drug targets and new disease-associated pathogenic genes, and discovers and confirms drugs having potential treatment effects on diseases and integration effects and synergistic mechanisms thereof. A scientific basis is provided for explaining the effectiveness of Chinese and western medicine treatment and drug discovery.
Owner:HUNAN UNIV
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