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27 results about "Plant morphology" patented technology

Plant morphology or phytomorphology is the study of the physical form and external structure of plants. This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially at the microscopic level. Plant morphology is useful in the visual identification of plants.

Peanut plant growth state intelligent monitoring method and system, and electronic equipment

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.
Owner:SHANDONG PEANUT RES INST

Plant three-dimensional reconstruction method and system fusing physical prior and density pixel alignment

The invention provides a plant three-dimensional reconstruction method and system fusing physical prior and density pixel alignment. The method comprises the steps of obtaining target multi-view observation data; and inputting the target multi-view observation data into a tomato plant neural radiation field model to obtain a tomato plant neural radiation field, the tomato plant neural radiation field model being obtained based on improved neural radiation field training. The improved neural radiation field comprises a multi-resolution hash coding sub-model, a plant morphology priori constraint sub-model and a density pixel alignment loss function sub-model; and based on a hierarchical rendering strategy and a neural slice rapid rendering technology, rendering the tomato plant neural radiation field to obtain a tomato plant three-dimensional reconstruction result. The tomato plant three-dimensional reconstruction precision and efficiency are improved.
Owner:INTELLIGENT EQUIPMENT RESEARCH CENTER BEIJING ACADEMY OF AGRICULTURE AND FORESTRY SCIENCES

Coarse-stem high-yield caulis spatholobi germplasm screening and breeding method suitable for under-forest habitat

The invention discloses a thick-stem high-yield caulis spatholobi germplasm screening and breeding method suitable for an under-forest habitat. According to the method, a standardized under-forest cultivation system is constructed, spiral winding induction synergistically mediated by plant morphology and plant hormones is implemented, lignification development of stems is enhanced by applying mild mechanical stress with specific parameters, rhizosphere microorganism regulation and systematic nutrition management are synchronously combined, and the yield of the stems is increased. And finally, a multi-dimensional comprehensive evaluation system covering the stem shape, the wood density, the active ingredient content and the under-forest weak light adaptability is established, so that an integrated technical scheme for efficiently and accurately breeding the excellent caulis spatholobi germplasm with thick stem phenotype, high flavone accumulation and strong under-forest weak light tolerance from a large number of candidate germplasm is realized.
Owner:GUANGXI FORESTRY RES INST

Method for measuring three-dimensional shape of seed plant dispersal body based on video stereomicroscope

PendingCN122156472A3D modellingPropaguleThree dimensional shape
The present application belongs to the technical field of plant morphology, and particularly relates to a seed plant propagule three-dimensional shape measurement method based on a video stereomicroscope, comprising: collecting seed plant propagules at the mature stage and air-drying to a constant weight; classifying the propagules according to the seed, fruit shape and surface accessory structure, and determining the measurement criteria of the shape of different categories of propagules; scanning the three-dimensional structure of each category of propagule by using a video stereomicroscope, and accurately measuring the shape parameters length, width and thickness of the propagule; normalizing each category of propagule, calculating the shape index of the propagule, and representing the closeness to a spherical shape. The method quantifies the complex three-dimensional shape characteristics of the seed plant propagule into a comprehensive shape index, realizes accurate quantitative measurement and digitization of the morphological characteristics of the propagule, solves the pain point of determining the shape of the propagule by using a traditional observation tool, and facilitates the comparative identification of the three-dimensional shapes of different categories of seed plant propagules.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

Canopy morphology 3D feature analysis method based on lightweight UAV and point cloud singular value decomposition

A canopy morphology 3D feature analysis method based on lightweight drones and point cloud singular value decomposition belongs to the field of plant morphology analysis. The method is as follows: a drone-mounted RGB camera is combined with the SfM‑MVS algorithm to perform high-precision three-dimensional reconstruction of the soybean canopy structure. At the same time, a label-based method introduces the singular value decomposition (SVD) method for the point cloud coordinate matrix, and 9 canopy morphology 3D features at multiple scales are established as a new interpretable feature at the crop plot level. The results show that the global canopy 3D features are significantly correlated with soybean yield, lodging, canopy height, and vegetation index (p <= 0.05). 3D feature extraction based on local range can extract more detailed structural information of the canopy surface, which helps to characterize the differences in more growth stages of soybeans.
Owner:CHINA AGRI UNIV +1

Basil leaf sampling device

The invention discloses a basil leaf sampling device, and relates to the technical field of sample collection. The device comprises a walking base, and further comprises a mounting frame mounted on the walking base; the two side plates are connected through the two parallel connecting plates and are in a rectangular frame shape, strip-shaped grooves are formed in the end portions of the side plates, the strip-shaped grooves extend in the length direction of the side plates and penetrate through the two sides of the side plates, and the tail ends of the side plates are connected with the mounting frame. Through the design that the two first conveying belts moving in the opposite directions are matched with the flexible abutting piece, the leaves can be gently clamped and guided to be conveyed, the complex plant forms such as multi-layer stacking can be effectively handled, and the separation mechanism can be matched with the separation mechanism to achieve separation of the leaves by means of the included angle difference between the leaf orientation and the conveying direction. Automatic deviation of inclined leaves is realized by matching with frictional resistance difference, single-leaf sampling of basil leaves is realized, and unnecessary wounds of basil plants can be effectively reduced by matching with a cutting mechanism to cut off leaf stalks.
Owner:MIANYANG TEACHERS COLLEGE

Equipment for monitoring environmental parameters and interaction of ecological bottle based on artificial intelligence video analysis

The invention discloses equipment for monitoring environmental parameters and interaction of an ecological bottle based on artificial intelligence video analysis, and relates to the crossing field of artificial intelligence and ecological monitoring technologies. The equipment comprises an ecological bottle body module, a data acquisition module, an AI core analysis module, an intelligent interaction module and a data storage and display module. The data acquisition module acquires plant morphology data and environmental parameter data in real time through a high-definition camera and a sensor; the AI core analysis module establishes an association relationship between plant morphology and environmental parameters by means of a pre-trained plant morphology-environmental parameter association model, matches optimal growth environmental parameters in combination with a plant environmental parameter database, and evaluates a growth state; the intelligent interaction module realizes bidirectional interaction through voice and an APP, and provides regulation and control suggestions, planting consultation and emotion accompanying; and the data storage and display module is used for storing full-cycle data and generating a delayed video according to user requirements. According to the invention, monitoring of environmental parameters of the ecological bottle and intelligent interaction of the user are realized, scientific planting guidance is provided for the user, user experience is enriched, and the system is suitable for ecological bottle maintenance in scenes such as families, schools and scientific research institutions.
Owner:吴超

Plant image processing-based classification method and system for stress-resistant plants on high-cold and steep slopes

The application provides a high-cold and steep-slope stress-resistant plant classification method and system based on plant image processing, and belongs to the fields of image processing and artificial intelligence. Time-series growth morphology images of a target plant group in a preset growth cycle in a high-cold and steep-slope region are collected, the time-series growth morphology images are subjected to morphology response trajectory analysis processing, a plant morphology response trajectory set is obtained through time-series image frame difference and morphology change vector extraction, stress resistance interactive modeling is performed on the plant morphology response trajectory set, a plant stress resistance interactive atlas is generated through multi-feature synergistic effect strength calculation and stress resistance contribution degree adjustment, and the plant morphology response trajectory set and the plant stress resistance interactive atlas are subjected to progressive prototype adaptive matching with a preset stress resistance prototype trajectory mode library to determine a high-cold and steep-slope stress-resistant plant classification result. Through the application, the influence of feature correlation misjudgment on the classification result can be effectively reduced, and the reliability and robustness of stress-resistant plant classification can be improved.
Owner:BEIJING FORESTRY UNIVERSITY +2

Dynamic plant spacing adjusting method and system for cotton close planting and high-yield cultivation

The invention provides a dynamic plant spacing adjustment method and system for cotton close-planting high-yield cultivation. The method comprises the steps that plant morphology, field microenvironment and target cotton plant close-planting photosynthetic rate initial data of cotton in different growth stages are collected; based on the data, calculating the optimal plant spacing range at the current stage by using a pre-constructed plant spacing adaptation model which takes the cotton close planting yield maximization as an objective function and takes the plant canopy overlapping rate, the inter-row illumination transmittance and the soil humidity as constraint conditions; obtaining the actual plant spacing of the cotton field, comparing the actual plant spacing with the optimal range, judging whether to adjust, generating an adjusting instruction if the plant spacing exceeds the range, controlling the automatic transplanting device to operate, and collecting data again after adjustment to verify whether the plant spacing accords with the optimal range. According to the method, the plant spacing adaptation model is constructed, and the problem of multi-constraint synchronous coordination is solved by combining dynamic weight coefficient and growth stage characteristic matching; data are regularly collected to update model parameters, the cotton close planting yield is improved, and cultivation management intelligence is achieved.
Owner:XINJIANG ACADEMY OF AGRI & RECLAMATION SCI

Intelligent flowerpot and control system thereof

This invention discloses an intelligent flowerpot and its control system. The intelligent flowerpot includes a flowerpot body and integrated within the flowerpot body a main control module, an image acquisition module, an environmental sensing module, an execution control module, a communication module, and a power supply module. The interior of the flowerpot body is divided into a plant planting chamber, a liquid storage chamber, and a sealed equipment chamber by physical partitions. This invention acquires images of plant morphology and soil surface through the image acquisition module, identifies plant species and soil physical states using the main control module, and then matches the optimal growth parameter range and executes closed-loop adaptive adjustment. Furthermore, the system also has a soil ecological anomaly monitoring function based on multi-source data fusion. By comprehensively analyzing image information, physicochemical parameters, and plant growth status, it achieves automatic early warning and physical intervention for soil ecological anomalies. This invention enables precise monitoring and intelligent management of the plant growth environment, significantly improving plant maintenance efficiency and survival rate.
Owner:XIANGTAN UNIV

Muskmelon growth measuring method combined with light, water and fertilizer technology

The invention belongs to the technical field of muskmelon growth determination methods, and discloses a muskmelon growth determination method in combination with a light-water-fertilizer technology, and the method comprises the following specific steps: S1, selecting a sunlight greenhouse in an experiment field and a material experiment field, and selecting a muskmelon variety 'Mei Net 9'; plants are divided into a shading group and a non-shading group, the two illumination treatment groups are subjected to different field moisture capacity treatment, the field moisture capacity is continuously refined according to different fertilizers, and a dynamic interaction mechanism of illumination, moisture and fertilizer three factors is integrated, so that the limitation of traditional single environment factor research is broken through; systematic and accurate monitoring of the growth process of the facility muskmelons is achieved, the interaction mechanism of illumination and water and fertilizer treatment is disclosed, the yield and quality of the muskmelons are improved, development of the muskmelon industry is promoted, and core index measurement covering plant morphology, photosynthetic efficiency and fruit quality is established.
Owner:TIANJIN AGRICULTURE COLLEGE +1

A plant morphological phenotype information extraction method

The application discloses a kind of plant morphology phenotype information extraction method, belong to computer vision technical field.The method includes: propose local neighborhood structure plant node search positioning algorithm, the geometric distance and direction vector angle between adjacent nodes are calculated, the local neighborhood topological structure between nodes is analyzed, the node class and its belonging branch are judged;Plant region growth connection algorithm is proposed, the mask contour of the plant part of the same adjacent node is reduced dimension, the point that the maximum distance from direction axis is found on the target contour along the line parallel to direction axis, the boundary point of target plant part is determined, adjacent boundary point is sequentially connected, a continuous curve segment is formed, that is, the path close to adjacent node in real plant image;All the same adjacent nodes are sequentially repeated this operation, connect each part of plant, and construct complete plant morphology, realize fast and effective extraction plant morphology phenotype information, with the characteristics such as robust output result, convergence fast and stable.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Gossypium hirsutum leaf roll regulation gene ghclg and application thereof

The application discloses a Gossypium hirsutum l. leaf roll regulation gene GHCLG and application thereof. The nucleotide sequence of the gene in a normal broadleaf Gossypium hirsutum variety TM-1 is shown in SEQ ID NO. 1, and the nucleotide sequence of the gene in a Gossypium hirsutum leaf roll mutant T582 is shown in SEQ ID NO. 3. The gene cloned by the application has a direct connection with cotton leaf shape. Transgenic research is carried out on normal broadleaf Gossypium hirsutum 668 by using a constructed plant gene editing vector, and the result shows that knocking out the GHCLG gene leads to cotton leaf shape upwarping and inrolling, so that the gene has great application potential in improving plant leaf shape and plant morphology, improving plant photosynthetic efficiency and resisting pests and the like.
Owner:ZHEJIANG UNIV

High and cold meadow euphorbia fischeriana directional removing device

The invention provides an alpine meadow stellera chamaejasme directional clearing device. According to the alpine meadow stellera chamaejasme directional clearing device, high-confidence-coefficient identification of stellera chamaejasme in a complex vegetation community is ensured through a multi-spectrum and three-dimensional vision fused identification unit; the adaptive operation decision-making module based on a root growth model can intelligently match optimal clearing parameters according to plant morphology; the multi-degree-of-freedom mechanical arm and the drilling and spraying integrated execution head achieve the synergistic effect of physical damage and chemical killing under millimeter-level positioning precision. According to the method, the extensive mode of traditional broad-spectrum pesticide application or comprehensive ploughing is changed fundamentally, prevention and control activities are strictly limited to target plant individuals, and damage of herbicides to non-target plants and large-area damage of mechanical operation to meadow soil and native vegetation are avoided; and an efficient, environment-friendly and generalizable innovative technical solution is provided for treatment of invasive plants in the high and cold ecologically fragile area.
Owner:KUNMING COMPREHENSIVE NATURAL RESOURCES SURVEY CENT OF CHINA GEOLOGICAL SURVEY

A method and device for speech recognition of stroke dysarthria

ActiveCN119049517BSpeech recognitionSyllableDysarthria
The present application discloses a method and device for speech recognition of dysarthria caused by stroke. The technical solution of the present application classifies the acquired speech sample data according to the syllable category represented by the audio and the normal and patient categories, and obtains the audio spectrogram through transformation. Then, in the stage of building the network model, the front-end network uses the core processing module designed by plant morphology and physiology, and forms the rhizome with continuous Downsample after the STEM module to quickly transport the computing nodes to a higher receptive field area. The back-end network is based on the alternating configuration of the deep separable convolution and attention mechanism based on the Xception module to form a vine cross structure. The attention mechanism is selectively placed in the alternating convolution modules to improve the recognition ability and accuracy of key speech features, thereby being able to capture the global receptive field at multiple scales, accurately learn and discriminate the significant characteristic information of stroke pathology, and solve the technical problem of low accuracy in the existing articulation analysis of stroke patients.
Owner:GUANGDONG UNIV OF TECH

Application of upland cotton GhMAKR1 gene in regulation and control of cotton fiber elongation and plant morphology

The invention provides an application of a GhMAKR1 gene of upland cotton in regulation and control of cotton fiber elongation and plant morphology, 419 parts and 1081 parts of upland cotton varieties are re-sequenced and subjected to whole genome association analysis with fiber length traits, and it is found that the GhMAKR1 gene located in a D11 chromosome has significantly associated SNP and SV with the cotton fiber length. Gene overexpression and gene silencing means are used for verification and show that high expression of GhMAKR1 in a fiber development stage can significantly inhibit fiber elongation, and silencing causes fiber length increase. Meanwhile, research finds that the GhMAKR1 is used as an unknown functional protein, and overexpression of the GhMAKR1 shows a series of unique phenotypic characteristics, including dwarfing which is mainly shown in stem and internode shortening. In addition, overexpression plants also produce short and small flowers, the vigor of the flowers is reduced, and cotton bolls and seeds become small. The GhMAKR1 and the GhBIN2 protein can form an interaction compound to jointly inhibit the fiber cell elongation process.
Owner:HEBEI AGRICULTURAL UNIV.

Precise sowing system for hillside orchard based on remote sensing of unmanned aerial vehicle

The invention discloses a precise sowing system for a hillside orchard based on remote sensing of an unmanned aerial vehicle. The system belongs to the technical field of unmanned aerial vehicle intelligent agriculture and comprises a hyperspectral data acquisition module, a hyperspectral data processing module, an oblique photography data acquisition module, a plant morphology distribution data extraction module and a precise sowing module. The hyperspectral data acquisition module and the oblique photography data acquisition module output spectral images, oblique images and POS data; the hyperspectral data processing module generates a plant growth vigor and stress degree feature map according to the spectral image; the plant morphology distribution data extraction module generates a morphology distribution diagram of single plants in the orchard based on the inclined image; the precise sowing module completes precise sowing under the scheduling of the MCU controller; according to the method, through fusion of hyperspectral remote sensing monitoring, live-action three-dimensional modeling, optimal path planning and variable sowing control, accurate positioning and accurate dosage sowing with a single plant as a unit are realized, the utilization efficiency of water, fertilizer and pesticide is improved, the fruit quality is improved, and intelligent and accurate management of the hillside orchard is promoted.
Owner:JIANGSU AVIATION VOCATIONAL & TECH COLLEGE

Garden landscape design method and system based on virtual reality technology

The invention discloses a garden landscape design method and system based on a virtual reality technology, and relates to the technical field of garden landscape design, and the method comprises the steps: constructing a three-dimensional garden scene frame through a virtual reality device, and initializing terrain base parameters and ecological simulation parameters; a dynamic terrain is generated in real time based on whole body motion capture data of a designer, and a human body motion track is converted into a continuous terrain curved surface; receiving biomechanical input through tactile feedback equipment, driving dynamic adjustment of the plant growth model, and generating a plant form with manual intervention memory; establishing a real-time bidirectional feedback model of microclimate parameters and plant physiological parameters, and deducing a plant community succession process based on a time axis; scene details are dynamically optimized according to the visual focus area, and cross-culture semantic features are fused to generate composite landscape elements.
Owner:NANTONG COLLEGE OF SCIENCE & TECHNOLOGY

Corn yield rapid estimation method, device and equipment based on corn plant morphology

The application relates to the field of agricultural technology, and particularly discloses a corn yield rapid estimation method, device and equipment based on corn plant morphology, which comprises the following steps: obtaining corn plant morphology data 10 days before flowering to obtain a first above-ground biomass estimation result; obtaining corn plant morphology data 14 days after flowering to obtain a second above-ground biomass estimation result; based on the above estimation results, a plant growth rate estimation result in a yield formation critical period is obtained; and finally, based on a correlation model of the plant growth rate in the yield formation critical period and the corn yield and the growth rate estimation result, the corn yield is estimated. In this way, the corn yield can be directly estimated by using the corn plant morphology data surveyed in the field, and the method is simple and efficient. Moreover, since the plant growth rate in the yield formation critical period, i.e. 24 days before and after corn flowering, is determined, the most critical influence of drought stress on yield can be considered to the greatest extent, and the estimation accuracy is improved.
Owner:中国气象局沈阳大气环境研究所

Differential medium for screening corn transformants and method for screening corn positive seedlings

The invention provides a differential medium for screening corn transformants and a method for screening corn positive seedlings, and belongs to the technical field of plant genetic engineering. The invention provides a differential medium for screening corn transformants. The differential medium contains glufosinate-ammonium or glufosinate-ammonium pesticide. The differential medium provided by the invention is suitable for the corn transformant carrying a target exogenous gene and a glufosinate-ammonium resistance gene. The method comprises the following steps: inoculating corn buds obtained by recombinant agrobacterium tumefaciens-mediated transformation to a differential medium containing glufosinate-ammonium or glufosinate-ammonium pesticide with specific concentration, and culturing; in the culture process, corn buds with glufosinate-ammonium resistance genes (co-transformed with target exogenous genes) successfully introduced can normally grow on the culture medium to form positive seedlings with complete plant morphology. Through the differential culture medium, positive seedlings can be screened out from a large number of transformed seedlings in a short time, and it is ensured that high-proportion positive plants are obtained.
Owner:BEIJING O R G AGRICULTURE CO LTD

Mechanical pepper picker

The present application belongs to the field of mechanical devices, and relates to a tool for picking Sichuan pepper. After replacing the cutting edge, the function can be extended to picking fruits of rose, dragon head and other thorny plants. The special requirements of Sichuan pepper trees, such as special multi-spine plant morphology, disorderly branches and the fact that the skin of Sichuan pepper particles cannot be damaged during picking to prevent the permeation of pepper oil and affect the quality, are met. The design of the upper and lower three blades of the mechanical Sichuan pepper picker can ensure that 99.4% of the Sichuan pepper particles are picked at one time. The integrated transmission device of 8 movable shafts, 5 fixed shafts and 5 transmission force arms can effectively shorten the force arm and improve the flexibility of operation. The self-locking safety function of the force arm device realized by the movable shafts and the fixed shafts can prevent the cutting edge from hurting the hand when carrying. The spring can automatically rebound by 30° to ensure that the diameter of the picking opening between the upper and lower blades is 7.5 cm. The picking and collecting are synchronized, the pain of being pricked by the pepper thorns is avoided, the efficiency is 2-3 times that of manual picking, and the labor cost is reduced.
Owner:GANSU IND VOCATIONAL & TECH COLLEGE

Irrigation area soil moisture content monitoring system based on unmanned aerial vehicle remote sensing

The invention relates to the technical field of agricultural information, in particular to an irrigation area soil moisture content monitoring system based on unmanned aerial vehicle remote sensing, and the system comprises a data collection module which synchronously obtains multi-source environment and vegetation data and constructs a terrain model through a model generation module; the crop identification module is used for accurately dividing crop areas based on plant morphology and historical records and generating a plant height data set; the lodging correction module is used for judging and correcting spatial heterogeneous distribution caused by turbulent flow of the unmanned aerial vehicle based on the plant height data; and the irrigation decision-making module outputs a precise irrigation decision-making instruction in combination with the land state, the plant health condition and the weather forecast data. According to the system, when remote sensing control of the unmanned aerial vehicle is executed, collection and fusion of multi-dimensional information of land, plants and environment are accurately obtained, refined and high-robustness moisture state classification is achieved, and a solid technical support is provided for accurate water resource management of modern agriculture.
Owner:HENAN WATER ENVIRONMENT SURVEY & DESIGN CO LTD

Cotton GhSNL1 protein and its encoding gene and application

The present invention discloses cotton GhSNL1 protein and its coding gene and application. The cotton GhSNL1 protein coding gene (Gh_A01G1757; LOC107925613) has a coding sequence of 1290 nucleotides and a protein sequence of 429 amino acids. GhSNL1 Phenotypic analysis of CRISPR‑Cas9 gene editing materials revealed GhSNL1 The knockout material of the gene showed the phenotype of slow fiber initiation, shortened fiber density and regeneration of bolls in mature plants, indicating that GhSNL1 The gene is involved in the development of cotton fibers, promotes the initiation of cotton fibers and affects plant morphology, providing a theoretical basis for cotton variety improvement and can be used to breed new cotton varieties with excellent fiber quality and high yield.
Owner:SANYA NATIONAL INSTITUTE OF SOUTHERN BREEDING CHINESE ACADEMY OF AGRICULTURAL SCIENCES

Degradable multi-source hydrated soil conditioner as well as preparation method and application thereof

The invention provides a degradable multi-source hydrated soil conditioner as well as a preparation method and application thereof, and belongs to the technical field of soil conditioners. The preparation method comprises the following steps: sequentially adding carboxymethyl cellulose, a cross-linking agent and a pore-forming agent into a sodium chloride solution to obtain a mixed solution; then adding an activating agent into the mixed solution for gelation, and freeze-drying to obtain dry gel; and finally, immersing the xerogel into a moisture absorbent inorganic salt solution until adsorption saturation, washing, and freeze-drying to obtain the degradable multi-source hydrated soil conditioner. The degradable multi-source hydrated soil conditioner can obviously improve agricultural performance, the survival time of corn is prolonged to 20 days from 7 days under the drought condition, and the plant morphology equivalent to that of an irrigation control group is kept.
Owner:HAINAN UNIV

Machine-harvested cotton variety breeding method

The invention discloses a machine-harvested cotton variety breeding method which comprises the following steps: step 1, in the first year, hybridizing a parent AY4 and Xinluzao No.12 in Xinjiang to obtain an F1 generation, and screening single plants; 2, in the second year, selfing the F1 generation in Xinjiang to obtain an F2 generation, and screening single plants; 3, in the third year, F2 generation screening single plants are planted in Xinjiang, south propagation is conducted in Hainan in the same year, and excellent single plants are screened; 4, in the fourth year, adding generations in Xinjiang to obtain F4-generation screening single plants; 5, from the fifth year to the ninth year, single plants are screened in Xinjiang every year for planting. According to the technical scheme, by taking adaptation to mechanical harvesting as a core target, specific parent and offspring single plant materials are screened through evaluation and selection of important upland cotton mechanical harvesting key characters such as a plant type structure, centralized maturation, high temperature resistance, easy tip sealing property, flower breaking property, branch boll carrying and node boll carrying, centralized defoliation and boll opening and the like; a good propagation system of a selfing mixed propagation method and a simultaneous storage separate propagation method is adopted, and cotton varieties with the characteristics that the plant morphology is suitable for mechanical operation, cotton boll distribution is reasonable, and the defoliation property is good are cultivated.
Owner:XINJIANG ACAD OF AGRI SCI (XINJIANG BRANCH OF CHINESE ACAD OF AGRI SCI)

A method for identifying F1 hybrid of interspecific hybridization between betula nigra and betula fukienensis by SSR molecular marker

The application provides a method for identifying F1 hybrids of interspecific cross of Betula nigra and Betula fukienensis by using SSR molecular markers, and relates to the technical field of biology.The application is a method for identifying F1 hybrids of interspecific cross of Betula nigra and Betula fukienensis by using SSR molecular markers, which uses the SSR marker technology to perform PCR amplification on the DNA of F1 hybrids of interspecific cross of Betula, uses capillary electrophoresis to detect the amplification products, and combines the bands and the plant morphology to determine the authenticity of the F1 hybrids.The SSR marker primer provided by the application has good repeatability and strong specificity;the method has the advantages of high efficiency, low cost, short cycle and early screening, can replace the traditional hybrid identification method, realizes accurate identification of F1 hybrids of interspecific cross of Betula nigra and Betula fukienensis, and has important practical application value.
Owner:ZHEJIANG FORESTRY UNIVERSITY