60 results about "Seeds source" patented technology

The invention discloses a yellow flammulina velutipes ZJJZG002 and InDel marker with high resistance and high brittleness and application of the yellow flammulina velutipes ZJJZG002 and InDel marker, and relates to the technical field of edible mushroom cultivation, the preservation number of the yellow flammulina velutipes is CGMCC NO.41174, and the yellow flammulina velutipes is classified and named as flammulina velutipes. The strain ZJJZG002 takes yellow flammulina velutipes F24 and white flammulina velutipes W1 as parents, the parent materials are subjected to ultraviolet mutagenesis treatment and then are subjected to single spore isolation, hybridization (a hybrid combination XB51 * YU19) and fruiting tests, and the strain ZJJZG002 is not prone to umbrella opening, rich in mushroom fragrance, crisp and refreshing in taste, neat in fruiting, suitable for production in various cultivation modes and capable of injecting a new seed source for the domestic flammulina velutipes market.

The application provides a method for preventing and controlling plant aphids, and the specific steps are as follows: selecting plant germination seeds that have grown roots and the root length is 2-6 cm, applying a light cycle treatment of 8h light and 16h darkness in the growth process of the plant germination seeds; in the plant germination seeds, the seed sources include legumes and cruciferous vegetables; and in the growth process of the plant germination seeds, a boron-containing nutrient solution containing the following components is used: Ca(NO3)2.4H2O 4mM, KH2PO4 1mM, KCl 1mM, MgSO4.7H2O 2mM, K2SO40.5mM, FeSO4.7H2O 50μM, EDTA.Na2 50μM, MnCl2 10μM, ZnSO4.7H2O 5μM, CuSO4.5H2O 0.5μM, (NH4)6Mo7O 24 4H2O 1μM, H3BO3 35-70μM, CoCl20.5μM; the nutrient elements are applied according to the following steps: (1) the first boron-containing nutrient solution is used for 1-5d, and the concentration of all components in the first boron-containing nutrient solution is 20-30% of that of the boron-containing nutrient solution; (2) the second boron-containing nutrient solution is used for 6-15d, and the concentration of all components in the second boron-containing nutrient solution is 40-60% of that of the boron-containing nutrient solution. The method can effectively prevent and control plant aphids.

The invention discloses a pine seedling raising method and device based on temperature gradient and photoperiod coordinated regulation, and the method comprises the following steps: S1, seed source molecular marker-assisted screening: in a pine natural distribution area, collecting healthy excellent tree species with the tree age of more than or equal to 30 years, the fruiting amount interannual variation coefficient of less than 15%, and no pest or disease damage; high-grease seed sources are screened through a molecular marker technology, pretreatment with compound liquid is combined, and temperature-light synergistic regulation and control of three-temperature-zone gradient and precise spectrum are matched, so that the seed germination rate is effectively increased, and the quality stability of the pine is enhanced; a composite frozen soil defense structure is matched with an internet-of-things intelligent heating system, so that targeted protection of freezing injury of pine root systems is realized, and meanwhile, energy consumption is effectively reduced; through accurate temperature and light regulation and control of the closed seedling raising cabin and dynamic management of the ad hoc network, the defect of insufficient accumulated temperature in a cold region is overcome, and the limitation of short growing season is broken through, so that the growth efficiency of the pine is effectively improved.

The invention discloses a real-time detection method for bulbus fritillariae propagating activity, and relates to the field of seedling detection, and the method comprises the following steps: step 1, seed stratification pretreatment: mixing bulbus fritillariae seeds and fine sand according to a ratio of 1: 3 for stratification, and maintaining the humidity of a substrate to be 50-60%; 2, dynamically monitoring enzyme activity, namely grinding the sample prepared in the step 1, sampling and detecting the seeds every 10 days, extracting enzyme liquid, and respectively measuring the activity of catalase, peroxidase and amylase in real time by adopting an ultraviolet spectrophotometric method; a full-cycle real-time data flow is constructed, a continuous dynamic process of activity change is captured, then a machine learning model is used for fusion analysis and prediction of seed propagation potential, activity evaluation is converted into a quantifiable propagation activity index, a clear judgment threshold value is set, and the machine learning model is trained on the basis of a large amount of data, so that the propagation activity of seeds is improved. And the accuracy and efficiency of high-quality seed source screening are improved.

The invention provides a sorting mechanism applied to a sealed seed source, and relates to the technical field of seed source sorting, the sorting mechanism comprises a shielding box body and a control system, the shielding box body is internally provided with a material injection execution module; the container processing module comprises a container bearing assembly, a plurality of independently-isolated container stations are arranged in the circumferential direction of the container bearing assembly, a set of elastic clamps are correspondingly arranged in each container station, and a collecting container is fixed to each set of elastic clamps in a releasable mode; the container supply assembly is used for automatically supplying empty collection containers to empty container stations; the cap screwing assembly comprises a bottle cap conveying guide rail and a cap screwing driving mechanism which is vertically arranged; and the finished product discharging unit is linked with the cap screwing assembly. By integrating the cap screwing assembly, the finished product discharging unit and the container supplying assembly, continuous operation without human intervention in the whole process of subpackaging, cap screwing, bottle arranging and bottle supplementing is achieved, and the risk of radiation exposure caused by opening of a bottle opening in the bottle taking, cap screwing and bottle supplementing processes is thoroughly eliminated.

The application belongs to the technical field of molecular biology, and specifically discloses a SNP site combination for constructing a molecular identity card of Guoqin No.2 and application thereof. The SNP site combination can be used for quickly and accurately identifying the authenticity of Guoqin No.2 parent and its seed offspring, and is of great significance for protecting the rights of new plant varieties, preventing fake and inferior varieties from entering the market, and ensuring the safety and reliability of excellent seed sources. On the basis of the provided SNP site combination, the application constructs a molecular identity card of the new variety of traditional Chinese medicinal material Scutellaria baicalensis Georgi, broadens the application of the molecular identity card in the identification of traditional Chinese medicinal material varieties, lays a foundation for the establishment of a molecular identity card in the identification of other traditional Chinese medicinal material varieties and a seed source tracing system, and provides theoretical support for the establishment of a variety identification standard.

The invention discloses an artificial maturity promoting and fry breeding method for Peltella corii, which comprises the steps of cooling temporary rearing, maturity promoting, mating, spawning, hatching, high-density larva breeding, metamorphosis and the like, male snails and female snails are separately bred during maturity promoting, and a breeding scheme is optimized. According to the technical scheme, batch gonad maturation of parent snails according to plans is achieved, and the maturity is good; high-density breeding technologies such as fertilized egg hatching and larva breeding are overcome, a stable and efficient fry production process is established, a large number of high-quality, healthy and regular-specification young snails are provided for the breeding industry, and the provenance basis of the industry is fundamentally guaranteed.

The invention belongs to the technical field of ecological restoration, and particularly relates to a method for rapidly and stably restoring vegetation in a backtillage sand land. The method comprises the following steps that S1, a plurality of straw bags are prepared; s2, grass seeds and sandy soil are mixed; s3, the sandy soil mixed with the grass seeds is put into a grass bag; s4, the filled straw bags are laid on the surface of the sand land to be restored according to set intervals; and S5, grass seeds are sown on the surface of the sand land to be recovered between the laid grass bags. The grass bags serve as sand barriers and planting units at the same time, sand fixation and seed source integration is achieved, the problems that sand land seeds are prone to displacement and the seedling survival rate is low are effectively solved, and the method has the advantages of being rapid in effect taking, durable, stable, low in cost, environmentally friendly and easy to popularize and is particularly suitable for ecological restoration of desertification grassland in arid and semi-arid areas.

The application discloses a terminal paternal white-feathered Anyi Va-Grey chicken breeding method, and relates to the technical field of poultry genetic breeding and reproduction. The application obtains the first paternal stable genetic black-feathered black-bone chicken by crossbreeding of the grey-feathered Anyi Va-Grey chicken and the black-feathered Xuefeng black-bone chicken; the terminal paternal stable genetic white-feathered black-bone chicken is obtained by crossbreeding of the grey-white-feathered Anyi Va-Grey chicken and the white-feathered Xuefeng black-bone chicken; the F1 hybrid hens obtained by crossbreeding of the first paternal chicken and other mature line hens are crossbred with the terminal paternal chicken to obtain the commercial generation Va-Grey chicken. The application completely solves the problem of seed source loss caused by the original seed supply of the Anyi Va-Grey chicken, and solves the problems of poor stress resistance, poor meat quality and easy reverse research and development of the simple binary hybrid. The mature line is used to improve the growth speed and the reproductive performance, the demand of variety protection and industrialization is considered, the matching mode is difficult to be reverse imitated, and reliable technical support is provided for industrial standardization.

The utility model relates to the field of agricultural biotechnology discloses a kind of root tip material taking positioner for seed source purification, including machine body, the inside right end of machine body is fixedly connected with fixed mechanism, the fixed mechanism is used to be fixed to different size culture dish, the inside top of machine body is equipped with moving mechanism, the moving mechanism is used to take material to root source;The fixed mechanism includes fixed half ring, the fixed half ring is fixedly connected in the inside right end of machine body, the right side of fixed half ring is equipped with moving half ring, the bottom of machine body is equipped with sliding slot. In the utility model, support frame is fixed in machine body, and it supports double rack movement, drives moving half ring to slide in the sliding slot of the bottom of machine body, fixed half ring is fixed in machine body, and the cooperation of both realizes the fixation of different size culture dish, and effectively fixes the culture dish containing Chinese medicinal material root source.

The application discloses a guayule propagation culture medium and a tissue culture rapid propagation method thereof, and belongs to the technical field of tissue culture, and the culture medium comprises MS+0.07 mg / L 6-BA+1 g / L activated carbon+2 g / L agar. The method comprises the following steps: primary induction culture: stem segment explants are induced into seedlings; propagation culture: tissue culture seedlings obtained through the primary culture are selected, stems of axillary buds are taken, and subculture propagation culture is carried out to obtain multiple shoots; rooting culture: the multiple shoots are cultured to obtain rooted tissue culture seedlings; and transplanting: the rooted tissue culture seedlings are transplanted to obtain seedlings. The application can solve the technical problems that the subculture propagation process is extremely easy to vitrify and the propagation coefficient is low, can solve the problems that the excellent seed source of guayule is stable in property and rapid propagation, and realizes large-scale production of high-quality and non-toxic guayule seedlings.

This invention discloses a cultivation method to improve the propagation efficiency of Rhodiola rosea, relating to the fields of plant cultivation and seed propagation technology. The cultivation method includes: (1) Seedling stage: after being treated with hormones, the seeds are sown in a light substrate and cultivated for 6-12 months to obtain strong seedlings; (2) Hydroponic transplanting and flowering induction stage: the strong seedlings are transplanted to a hydroponic system, and photoperiodic induction is performed using an artificial light source with a red-blue spectrum ratio of 1:1, combined with the phased adjustment of nutrient solution and the spraying of exogenous hormones to synergistically induce reproductive growth; (3) Pollination and seed collection stage: the seeds are collected after assisted pollination. This invention shortens the seed-to-seed cycle of Rhodiola rosea from the traditional 6 years or more to 2-3 years through multi-factor synergistic regulation, significantly improving the flowering rate and seed yield per plant, increasing the propagation efficiency by more than 99%, and is applicable to different ecotype seed sources, with the advantages of strong operability and good universality.

The invention discloses a breeding method for a commercial line of tile grey chickens with a terminal paternal line being white feather, and relates to the technical field of poultry genetic breeding and propagation. The method comprises the following steps: hybridizing and breeding gray-feather Anyi tile gray chickens and spotted-feather snow-peak black-bone chickens to obtain spotted-feather black-bone chickens with genetic stability as a first paternal line; the white feather black-bone chicken with genetic stability is obtained through hybridization breeding of the gray-white feather Anyi tile grey chicken and the white feather Xuefeng black-bone chicken and serves as a terminal paternal line; hybridizing the first paternal line with hens of other mature lines to obtain F1-generation hybrid hens, and hybridizing the F1-generation hybrid hens with the terminal paternal line to obtain commercial-generation grey chickens. The method thoroughly solves the problem of provenance loss caused by feeding of the Anyi tile grey chicken stock, and the problems of poor stress resistance, poor meat quality and easiness in reverse research and development caused by simple binary miscellaneous trading. The growth speed and reproductive performance are improved by utilizing mature strains, the variety protection and industrialization requirements are considered, the matching mode is difficult to reversely simulate, and reliable technical support is provided for industrial standardization.

The embodiment of the application provides a sealed seed source automatic sorting system and device, and belongs to the technical field of seed source sorting; the method comprises a double-channel feeding module, which is used for synchronous vibration sorting and directional conveying of double-specification seed sources; a single-seed source separation feeding module, which is used for controlling the alternate capture of double-specification seed sources and the airflow injection type output of the seed sources through switching of a dynamic station; an activity detection module, which is used for measuring the activity of the seed sources through flow direction control of a Y-shaped inlet connector and a detection tube retention mechanism; and a discharging automatic packaging module, which is used for releasing the seed sources of the target activity interval through the positioning of a seed source collection bottle and a filling guide pipe of a rotating placement disc, and collecting the seed sources in batches according to the activity. Through the double-channel parallel feeding mechanism, the embodiment realizes the synchronous processing and dynamic adaptation of seed sources of different specifications, and significantly improves the overall productivity. The box design is combined with the automatic packaging process, and the safety of the working environment is effectively ensured.

This invention relates to the field of artificial breeding technology for natural enemy insects, and in particular to a method for the artificial breeding of the assassin bug *Triplophysa pulcherrima*. The invention employs steps including seed source collection and screening, rearing environment control, feed supply and management, mating and reproduction management, oviposition and egg mass collection, nymph hatching and age-differentiated rearing, overwintering management, and cannibalism control. By providing specialized rearing management devices, temperature and humidity conditions, standardized feed feeding, age-differentiated rearing density control, and moisture-controlled egg mass hatching, it solves the problems of high mortality rates among young nymphs, unstable mating success rates, low egg mass hatching rates, and the lack of a year-round breeding system in existing technologies. The method of this invention is simple to operate, has a high survival rate (nymphal survival rate exceeding 85%), an egg mass hatching rate exceeding 90%, and can achieve 4-5 generations per year, enabling large-scale, year-round production of *Triplophysa pulcherrima*, providing high-quality natural enemy resources for the biological control of agricultural and forestry pests.

The application relates to the field of agricultural ecological engineering and water and soil conservation technologies, in particular to a biological crust soil-fixing and water-retaining composition for citrus orchards and a soil-fixing and water-retaining method and application thereof. The biological crust soil-fixing and water-retaining composition for citrus orchards comprises a biological crust seed source, a soil adhesive and a growth auxiliary agent; the biological crust seed source comprises an alga seed source and a moss seed source. The biological crust soil-fixing and water-retaining composition for citrus orchards constructs a biological crust by using algae and moss, forms a film rapidly through artificial induction, solves the problem of bare land soil erosion, does not compete with fruit trees for fertilizer and light, and is suitable for citrus orchards in different growth periods.

The invention provides a sealed seed source automatic sorting device, and relates to the technical field of seed source sorting, the sealed seed source automatic sorting device comprises a box body, a control panel and a label printer, the box body is internally provided with a double-channel feeding assembly, a single seed source separation feeding assembly, an activity detection assembly and a discharging automatic subpackaging assembly, the single seed source separating and feeding assembly comprises a mounting frame with a fan-shaped cavity and a switching plate which is rotationally arranged in the fan-shaped cavity in a sealing manner, and an air blowing pipe and an output air pipe are coaxially arranged on the two sides of the mounting frame; the activity detection assembly comprises a detector, a Y-shaped inlet connecting pipe, a bracket and a detection pipe, wherein the bracket and the detection pipe are coaxially arranged in the detector. By arranging the double-channel feeding assembly, seed sources with different specifications of 0.6 mm and 0.8 mm can be separately fed at the same time, station switching of a switching plate is combined, dynamic adaptation of single equipment to the seed sources with multiple specifications is achieved, parallel processing of receiving and discharging of the double-specification seed sources is achieved, waiting time consumption caused by sequential operation of traditional equipment is thoroughly eliminated, and the working efficiency is improved. And the equipment productivity is effectively improved.

The invention provides a molecular diagnosis method for avian leukosis virus and Marek's disease virus mixed infection. The molecular diagnosis method comprises the following steps: (S01) collecting diseased material tissues; (S02) carrying out nucleic acid extraction on the sick material tissue of the sick chicken; (S03) detecting the nucleic acid by using specific primers of avian leukosis and Marek's disease; (S04) preparing a PCR (Polymerase Chain Reaction) detection system, and respectively adding ALV-env gene amplification primers and MDV-meq gene amplification primers for gene amplification; (S05) carrying out 1% agarose gel electrophoresis detection on the amplification product in the step (4), and carrying out sequence determination after determining a target band; (S06) carrying out BLAST comparison on the sequences obtained by sequencing, carrying out gene sequence analysis and drawing an evolutionary tree; and (S07) determining the virus type according to the homology and the evolutionary branches, so as to realize rapid diagnosis of ALV and MDV mixed infection, strain characteristic analysis and exclusion of other similar epidemic diseases, and provide technical support for accurate prevention and control of AL and MD in the poultry industry, provenance purification and epidemiological investigation.

This invention discloses an ecological and biomimetic full-cycle breeding method for blind leafcutter ants, comprising the following steps: First, collecting wild ant eggs (blind leafcutter ant) ​​from mating female and male ant colonies; Second, obtaining high-quality new female and male queen ants from the ant eggs (blind leafcutter ant); Third, inducing the female and male queen ants (blind leafcutter ant) ​​to aestivate in batches; Fourth, inducing the female and male queen ants to lay eggs and cultivating primary ant colonies in batches; Fifth, cultivating and managing the primary ant colonies in the wild ecological environment to become economic ant colonies; Sixth, collecting high-quality ant eggs (first-level ant eggs) multiple times; Seventh, selecting high-quality and strong ant eggs (blind leafcutter ant) ​​to reserve seed populations. Based on in-depth research on the life history and biological learning behavior of blind leafcutter ants, this invention establishes for the first time a complete technical system from seed source collection, new queen ant acquisition, new queen ant aestivation, primary ant colony cultivation, wild breeding to economic ant colony harvesting, and selection of breeding ant colonies, filling a technological gap in this field.

This application relates to the field of sand control technology, and particularly to a biological crusting sand fixation method for use in sandy areas near photovoltaic power stations. The biological crusting sand fixation method includes the following steps: dividing the sandy area of ​​the photovoltaic power station into a planting zone, a water collection zone, and a sand fixation zone; the planting zone encompasses the area of ​​the orthographic projection of the photovoltaic panels onto the sandy area; the water collection zone includes the area extending outwards by d3 from the orthographic projection line of the lower side of the photovoltaic panels onto the sandy area, where 10cm≤d3≤30cm; the sand fixation zone includes the area between any two photovoltaic panels that is not part of the water collection zone; performing a first water retention treatment on the planting zone; a second water retention treatment on the water collection zone; a third water retention treatment on the sand fixation zone; inoculating algae seed sources into the sand fixation zone, and after 4-6 weeks of growth, inoculating lichen seed sources into the planting zone. This biological crusting sand fixation method has high sand fixation efficiency, good long-term stability, low water replenishment cost, and a high success rate of biological colonization.

The invention relates to the technical field of plant tissue culture, in particular to a composite culture medium for tissue culture of olibanum nireda and a rapid propagation method. The tissue culture of the olibanum nireda is realized by utilizing a specific aseptic seedling induction culture medium, a callus induction and proliferation culture medium, an adventitious bud induction culture medium, a cluster bud induction culture medium, a strong seedling culture medium, a rooting induction domestication culture medium and a matched culture method. The method is simple and convenient to operate and has the advantages of low cost, no browning, high efficiency, short growth cycle and the like, a large number of olibanum nireda seedlings can be easily obtained through a tissue culture rapid propagation technology, and a seed source is provided for large-scale production of olibanum nireda.

The application provides a low-cost Gastrodia elata Blume seed storage and maintenance method, and belongs to the technical field of Chinese medicinal material seed storage. In view of the three problems of rot caused by condensate water droplets, alcohol poisoning caused by lack of oxygen in sealing, and water loss caused by excessive ventilation in the existing storage mode, the application adopts a heat preservation foam box, a polypropylene geotextile sheet and a single-hole sealing cover to construct a storage device, through naked storage of the seed, complete coverage of the geotextile sheet and cooperation of the 3-5 mm single-hole micro-ventilation in the center of the cover, a storage micro-environment of 'water preservation without water accumulation and air permeation without air drying' is realized under the condition of 2-5 DEG C and 60%-70% relative humidity. The application does not need filling medium such as river sand and sawdust, the rot rate is controlled within 2%-3%, the weight loss rate is less than or equal to 2%, the germination rate is greater than or equal to 95%, the artificial cost is reduced by more than 60%, the cold storage utilization rate is increased by more than 50%, the seed can be stored throughout the year and planted in baskets in all seasons, the seed source guarantee for fresh Gastrodia elata Blume supply throughout the year is provided, and the application is suitable for farmers, cooperatives and small and medium-sized cold storage scale application.

Apparatus for providing optical radiation (9), which apparatus comprises; a first seed source (1) for providing first seeding radiation (11); a second seed source (2) for providing second seeding radiation (12); a coupler (3) connected to the first seed source (1) and the second seed source (2) for coupling the first seeding radiation (11) and the second seeding radiation (12) together; and at least one amplifier (4) for amplifying the first seeding radiation (11) and the second seeding radiation (12).

The invention provides a feeding mechanism applied to a sealed seed source, and relates to the technical field of seed source sorting, the feeding mechanism comprises a hopper, a sealing shell and a discharging track for supplying materials to downstream equipment, and the sealing shell is internally provided with two layers of sorting assemblies which are stacked up and down; each layer of sorting assembly comprises a rotatable supporting disc, and a plurality of inclined guide grooves are distributed in the circumferential array of the upper surface of the supporting disc; the pressure plate and the sealing shell are fixed, the pressure plate is coaxially arranged above the supporting plate, and the inner diameter of the pressure plate is larger than that of the supporting plate; an inclined barrier strip is arranged on the inner side of the pressure plate, and the barrier strip pushes the seed sources to enter the guide groove in sequence through relative rotation of the supporting plate and the pressure plate; the driving structure simultaneously drives the two layers of supporting discs to reversely rotate; and the single-material discharging structure is in running fit with the supporting disc, and when the material guide groove is aligned with the discharging track, the seed sources in the material guide groove are pushed into the discharging track in a single-grain mode. Seed source sequencing is achieved through relative rotation of the fixed pressing disc and the rotary supporting disc, and physical contact damage caused by vibration is avoided.

The invention discloses a method for cultivating sugarcane seedlings by adopting sugarcane bud eyes, relates to the technical field of plant seedling raising and planting, and solves the problems that the existing sugarcane bud eye seedling raising technology is unfavorable for soil environment and agricultural sustainable development due to high dosage of chemical agents. The method comprises the steps of bud eye obtaining, physical disinfection and pretreatment, biological protection treatment, germination accelerating and seedling raising, seedling stage management and the like. The method can accelerate the breeding and popularization progress of local varieties in Guangxi sugarcane areas, provide high-quality and sufficient seed sources for sugarcane planting, improve the enthusiasm of farmers for planting sugarcane, promote healthy development of the sugarcane industry, effectively reduce the application amount of chemical fertilizers and pesticides, relieve the threat of excessive application of the chemical fertilizers and pesticides to the ecological environment, prolong the perennial root age limit and improve the yield of the sugarcane. The farming frequency and water and soil loss are reduced, and the agricultural ecological environment of the sugarcane area is remarkably improved.

The invention relates to the technical field of medicinal breeding of special insects, in particular to a method for improving oxidation resistance of maggot and synthesizing GSH (glutathione), which comprises the following steps: preparing pig lung, medlar and salvia miltiorrhiza fermented feed; on the basis of the fermented feed, continuous three-generation directional stress screening is carried out, offspring is used as a next-generation provenance, and a target maggot population is obtained. The fermented feed containing active ingredients such as lycium barbarum polysaccharide and tanshinone IIA is prepared, continuous three-generation directional screening is matched, a GSH synthesis pathway in maggot bodies is activated, expression of antioxidant related substances is enhanced, the oxidative damage resistance of maggots is remarkably improved, meanwhile, populations are endowed with prominent functional application value, and the application prospect is wide. The method can be widely applied to research and development of antioxidant skin care products and other products, and can also provide natural biological resource support for auxiliary improvement of oxidative stress related diseases.

The utility model relates to the field of agricultural crops and grass husbandry, in particular to a seed collecting device. The utility model solves the technical problem that the existing seed collecting device cannot cut the stems of plants such as chrysanthemum family with high flexibility. In the utility model, the two double-sided cutting edges are 180 degrees apart, the time interval of adjacent cutting edges is extended during rotation, and the 180-degree long cutting edge has a larger cutting area, which can easily cut the stems of plants such as chrysanthemum family. The device of the utility model can quickly collect seeds and has a high seed collection rate. The height of the double-sided cutting edge cutter is adjustable, which can adapt to different heights of herbaceous plants and mature seeds. The utility model is not only beneficial to the collection of plant seeds including gramineae and chrysanthemum family, but also does not affect the growth of plants during seed collection, providing technical and equipment support for rapid collection of required seed sources.

The application relates to a method for breeding Scirpus planiculmis nutrient bulb based on hydrological regulation, and relates to a breeding method for Scirpus planiculmis nutrient bulb. The method is used to solve the problems of high cost and strong uncertainty in the existing Scirpus planiculmis bulb breeding process. The method comprises the following steps: S1, seed source collection and screening; S2, culture medium and container screening and preparation; S3, Scirpus planiculmis bulb sowing control; S4, stage hydrological regulation; and S5, Scirpus planiculmis bulb harvesting. The application sets up differential water level management based on different growth and development stages of Scirpus planiculmis, can significantly improve the quantity and quality of Scirpus planiculmis bulb breeding, and realizes bulb large-scale proliferation. The application adopts a 26cm-diameter and 30cm-depth gallon pot to breed Scirpus planiculmis nutrient bulb, about 200 bulbs can be harvested from each pot, the dry weight of the bulbs in each pot is about 360-420g, and the breeding efficiency is stably improved. The application can be used in the fields of laboratory breeding, scientific test and degenerated Scirpus planiculmis wetland ecological restoration.

The invention provides a fault protection system and method for an MOPA structure fiber laser. Wherein the system comprises: a primary seed source for providing the seed light to the amplification stage; the standby seed source is used for providing the seed light for the amplification stage when the main seed source is monitored to be abnormal; the monitoring module is used for monitoring the working state of the main seed source in real time, and generating a fault trigger signal when an abnormality is monitored; and the switching module is used for switching the source of the seed light received by the amplification stage from the main seed source to the standby seed source within a preset response time after receiving the fault trigger signal, so that the amplification stage keeps or recovers a normal working state after the standby seed source takes over. When the main seed source is abnormal, the standby seed source can rapidly take over seed light input of the amplification stage, and continuous laser output is achieved by dynamically adjusting output parameters.