45results about How to "Improve germination quality" patented technology

The invention discloses a treatment method for pepper seeds. The treatment method includes the following steps of seed sunning, disinfection, temperature variation treatment and bud forcing treatment. In the temperature variation treatment process, the seeds are soaked in an initiator solution, temperature variation operation is carried out at the same time, the stress treatment effect on the seeds of calcium chloride and other substances in the initiator solution can be enhanced, activity of kinds of enzymes in the seeds is improved by repeated temperature variation treatment, and resistance of later-stage seedlings is improved. Compared with the prior art, the emergence rate of the seeds treated comprehensively is obviously increased, stress resistance, seedling emergence performance and the like are obviously improved, and excellent technical support is provided for practical production. The method is simple, easy to implement and convenient to popularize.

The invention discloses a method for improving germination of medicago sativa seeds under acid-aluminum stress and relates to the technical field of production and management forage grass. The method comprises the following steps: (1) disinfecting the medicago sativa seeds, namely immersing the medicago sativa seeds into a 0.15% potassium permanganate solution under a room-temperature condition for disinfecting for 5 minutes; (2) immersing the seeds in a melatonin solution, namely immersing the medicago sativa seeds under a room-temperature dark condition for 8 hours; and (3) promoting the germination of the seeds, namely culturing the seeds under the conditions that the temperature is 25+ / -1 DEG C and the seeds are illuminated for 10 hours and then are put into a dark place for 14 hours alternately for 10 days to promote the germination of the seeds. Melatonin used by the invention is an amine type hormone and has no toxin and harms; the dosage of the melatonin is less when the melatonin is used for treating the seeds so that the treatment is economical; the method is simple and feasible, has rapid effect and is strong in operability; the germination quality of the medicago sativa seeds can be improved in short time; the problem that the germination rate of the medicago sativa seeds in acidic soil is low can be effectively solved; and technical supports are provided for popularizing and planting medicago sativa in Southern acid soil.

The invention discloses a wheat water-saving cultivation method. The method includes the following steps that 1, moisture in soil is formed, wherein irrigation moisture-in-soil forming is conducted before soil preparation, and the relative water content of the soil of field pieces reaches 70% to 80%; 2, rectangular pieces are arranged in the field pieces, the length of the rectangular pieces is 7.5-10 m, the face width of the rectangular pieces is 4.6-4.8 m, and the ridge width of the rectangular pieces is 35-40 cm; 3, wheat is planted in the rectangular pieces, the sowing time of the wheat is seventh to sixteenth in October every year, and the sowing quantity is 11-14 kg per mu; 4, the wheat is not irrigated in winter after being planted, and when internodes of base parts of the wheat are elongated by 1-2 cm in spring next year, flood irrigation in the rectangular pieces is conducted, and the irrigation volume is 50-60 m<3> per mu; when the relative water content of the soil in the flowering period of the wheat is lower than 65%, flood irrigation in the rectangular pieces is conducted, and the irrigation volume is 40-50 m<3> per mu; 5, the wheat is harvested 235-244 days after being planted. According to the method, the water utilization efficiency of the wheat can be improved, the yield is not reduced or the yield is slightly increased, and water saving, high yield and high efficiency are achieved.

The invention discloses a bulldozing and film-covering seeding machine for saline-alkali soil sorghum and belongs to a seeding machine. The bulldozing and film-covering seeding machine structurally comprises a rack, a bulldozing device, a seeding device, a film covering device, a soil covering blade, a film pressing device, an on-film earthing device and an on-film soil pressing device, wherein the bulldozing device, the seeding device, the film covering device, the soil covering blade, the film pressing device, the on-film earthing device and the on-film soil pressing device are sequentially arranged on the rack from back to forth, a traction frame is arranged at the upper part of the front end of the rack, and land wheels are respectively arranged at two sides of the lower part of the rack at the rear side of the bulldozing device. compared with the prior art, the saline-alkali soil sorghum bulldozing and film-covering seeding machine disclosed by the invention has the characteristics of reducing the salinity and the alkalinity of soil for seed germination of saline-alkali soil, improving the adaptability of initial soil conditions of sorghum seeds, increasing the emergence rate of sorghum, and improving the emergence quality; a seedling discharging-free technology plays a role in simplifying the cultivation and saving manpower and material resources.

The invention discloses a lilium oriental hybrid tissue culture seedling strengthening method which comprises the following steps: taking a squamous bulb of a lilium oriental hybrid aseptic seedling, and carrying out sprout induction culture on the squama in an induction culture medium; and after the sprouts are induced, inoculating the sprouts to a rooting and bulb-strengthening culture medium, and culturing to obtain a tissue culture seedling, wherein the rooting and bulb-strengthening culture medium comprises 4-6 g / L MS (Murashige-Skoog) powder, 60-70 g / L sucrose, 6-8 g / L agar and 5*10<-5>-5*10<-4> mmol / L brassinolide. The method can effectively promote the expansion of the squamous bulb of the tissue culture seedling, improves the quality of the squamous bulb, and is beneficial to obtaining the strong tissue culture seedling.

The invention relates to a method for improving germination quality of blanket seedlings of rapes and belongs to the field of the agricultural technologies. The method comprises the steps of overlapping a rice straw curtain on a plate opening of a seedling plate, enabling the rice straw curtain to be not directly contacted with bed soil, an overlapping a layer of plastic film on the grass curtain; and watering through the grass curtain. According to the method, the water retention and humidity preservation function of the rice straw is used; the heat preservation function of the plastic film is used; reasonable temperature, humidity and ventilation conditions are provided for the seedling plate; rot sprouts and dead seedlings can be avoided; and an obvious effect of improving the germination quality of blanket seedlings is achieved.

The invention discloses a lilium oriental hybrid tissue culture seedling strengthening method which comprises the following steps: taking a squamous bulb of a lilium oriental hybrid aseptic seedling, and carrying out sprout induction culture on the squama in an induction culture medium; and after the sprouts are induced, inoculating the sprouts to a rooting and bulb-strengthening culture medium, and culturing to obtain a tissue culture seedling, wherein the rooting and bulb-strengthening culture medium comprises 4-5 g / L MS (Murashige-Skoog) powder, 60-70 g / L sucrose, 6-8 g / L agar and 0.2-20 mg / L humic acid, and the fulvic acid content in the humic acid is at least 90%. The method can promote the expansion or / and weight gain of the squamous bulb of the tissue culture seedling, thereby obtaining the strong tissue culture seedling, shortening the production cycle and saving the cost.

The invention relates to the technical field of seed germination, and provides an intelligent germination box based on a STC89C54RD single-chip microcomputer control system. The seed germination box is characterized in that the seed germination box comprises a germination box body; a plurality layers of sieve meshes are arranged on the germination box body; an exhaust fan and a sprayer are arranged on the top of the germination box body; a heater is arranged on a lower part of the germination box body; a temperature sensor is arranged at the middle part of the box body; the temperature sensor is connected with a single-chip microcomputer; and the single-chip microcomputer is connected with the heater, the exhaust fan, the sprayer, an LCD display, and a keyboard.

The invention discloses a novel water bath type seed germination accelerating device, comprising a germination accelerating chamber, a germination accelerating plate, a water absorbing layer, a heater and a temperature gauge; the novel water bath type seed germination accelerating device is characterized in that the inner wall of the germination accelerating chamber is provided with fixed blocks, and a cover plate is arranged on the germination accelerating chamber; the germination accelerating plate is arranged in the germination accelerating chamber, and is provided with lifting lugs, cushion blocks and sprouting holes; the cushion blocks are arranged on the fixed blocks; the water absorbing layer is arranged at one side of the germination accelerating plate; the heater is arranged in the germination accelerating chamber. According to the novel water bath type seed germination accelerating device, water is put into the germination accelerating chamber and is heated by the heater so as to provide temperature for seed germination accelerating; water bath is used for heating, so that a constant temperature state can be maintained, seed germination is prevented from being influenced by too high or too low temperature, and seed germination quality is further improved; the water absorbing layer can be used for providing water for seeds in the sprouting holes, and the cover plate is used for avoiding water vapor escaping from the germination accelerating chamber, so that a proper temperature is provided for seed germination, and the seed germination rate is further increased.

The invention discloses a seed germination accelerating apparatus for agricultural plantation. The seed germination accelerating apparatus comprises a seed germination accelerating box body, seed germination accelerating carrying devices, a germination accelerating liquid storage tank and a circulating aeration unit, a seed germination accelerating box door is movably hinged to one side of the seed germination accelerating box body through stainless steel hinges, the seed germination accelerating carrying devices are fixedly mounted in the seed germination accelerating box body, and the germination accelerating liquid storage tank is fixedly mounted at a position, below the bottom seed germination accelerating carrying device, in the seed germination accelerating box body. The apparatus has the advantages of reasonable and simple structure, convenience in use, high germination accelerating efficiency, good germination accelerating effect, reduction of the occupied space, reduction of the apparatus cost by only using a single atomizing nozzle, uniformity in heating of a germination accelerating liquid, promotion of the flow of the liquid in the germination accelerating liquid storage tank, ensuring of uniform mixing of germination accelerating agents, ensuring of an enough oxygen content in the germination accelerating environment to promote the seed germination accelerating speed, and strong practicality.

The invention discloses a corn seed initiator and a preparation method thereof as well as a method for promoting low-temperature-resisting germination of corn seeds. The corn seed initiator at least comprises melatonin and abscisic acid, wherein the mass percent content of the melatonin in the corn seed initiator is 0.015 to 0.025 percent and the mass percent content of the abscisic acid in the corn seed initiator is 0.018 to 0.028 percent. The preparation method of the corn seed initiator comprises the following steps: dissolving the melatonin and the abscisic acid into an alcohol type organic solvent and then diluting to constant volume by utilizing water. The method for promoting the low-temperature-resisting germination of the corn seeds comprises the following step: carrying out surface treatment on the corn seeds through the corn seed initiator before the seeds are sowed. After the corn seeds are subjected to the surface treatment through the corn seed initiator via a common effect of the melatonin and the abscisic acid and concentration selection in the initiator, the low temperature tolerance of the corn seeds can be improved, the sprouting rate and the germination qualityof the corn seeds at a low temperature are remarkably improved and the growth of seedlings is promoted.

The invention relates to a rice field seedling growing test device and a recording method thereof, relates to the field of rice cultivation, and aims to solve the problem that seedling growing environment of seeds cannot be adjusted by a seedling growing tray, so that the seeds are in the most appropriate environment for seedling emergence, and the seedling emergence quality of the seeds is affected. The test device for rice field seedling growing comprises a cultivation frame and a plurality of seedling growing chambers used for containing seedling growing trays, the seedling growing chambers are all arranged on the cultivation frame, and temperature control mechanisms, humidity control mechanisms, oxygen content control mechanisms and seedling detection mechanisms used for detecting seedlings in the seedling growing chambers are arranged in the seedling growing chambers. The temperature control mechanism, the humidity control mechanism and the oxygen content control mechanism are all electrically connected with the seedling detection mechanism, and a control panel electrically connected with the temperature control mechanism, the humidity control mechanism, the oxygen content control mechanism and the seedling detection mechanism is further arranged on the seedling raising frame. The method has the effect of improving the emergence rate and the emergence quality of the seeds.

The invention relates to an automatically-controlled production device for sprouted brown rice and a preparation method for the brown rice. The device comprises an outer container (1) with a funnel-shaped bottom, and an inner container (2) which is held in the outer container (1) and is in a screen outer wall structure. An outer container cover (4) with a sprinkler (3) is arranged at the top of the outer container; a supporting seat (5) for supporting the inner container is arranged at the upper part of the funnel-shaped bottom of the outer container; an electric heater and vent pipes (6) are arranged on the supporting seat (5); air vents are evenly distributed in the side of the vent pipes facing the inner container; the vent pipes (6) are connected with an air pump (7) through pipelines; a water inlet is arranged in the lower part of the funnel-shaped bottom of the outer container and is connected with water inlet equipment through one way of a three-way valve (8); and another way of the three-way valve is connected with the sprinkler (3) through a circulating water pipeline. With the device, the sprouted brown rice is obtained through the following steps: soaking the brown rice, disinfecting the brown rice, cleaning the brown rice, sprouting, inactivating and the like. The device disclosed by the invention achieves automatic control of brown rice sprouting and improves the sprouting quality. The sprouting rate reaches 99%. The device is easy and simple to operate and is labor-saving.

The invention provides a mechanized efficient seeding method suitable for chenopodium quinoa in coastal sandy saline-alkali soil. A large-scale seeding machine integrating ditching and seeding is utilized, parameters of the seeding machine are controlled, such that mechanical seeding of chenopodium quinoa in coastal sandy saline-alkali soil is realized, and the seeding efficiency of chenopodium quinoa is improved while a seedling emergence rate is ensured. Aiming at characteristics of high sand content and high underground water level of coastal sandy saline-alkali soil, the seeding machine integrating ditching and seeding is adopted, an advancing speed and a seeding speed of the seeding machine are controlled, such that the seeding efficiency is improved, the seeding cost is reduced, resource waste is reduced, coastal saline-alkali soil resources are fully utilized, and a foundation is laid for characteristic agricultural development in coastal regions.

The invention relates to the field of agricultural planting, in particular to a seed soaking and germination accelerating device for agricultural planting. The device comprises a germination accelerating and seed soaking box body, wherein a seed soaking and germination accelerating cavity and a liquid fertilizer cavity are formed in the germination accelerating and seed soaking box body, an annular cylinder is installed in the seed soaking and germination accelerating cavity, the inner side of the annular cylinder is elastically supported by a supporting spring, a plurality of lifting blocks are distributed on the outer side of the annular cylinder in the circumferential direction, threaded rods are connected to the lifting blocks in a matched and threaded mode, and a driving mechanism used for driving the threaded rods to rotate at the same time is further installed on the germination accelerating and seed soaking box body; and liquid spraying heads are further arranged at the lower ends of the threaded rods, a liquid fertilizer conveying assembly used for pumping out liquid fertilizer in the liquid fertilizer cavity and evenly conveying the liquid fertilizer to the liquid spraying heads at the lower ends of the threaded rods is further installed on the germination accelerating and seed soaking box body, and a stirring assembly is further installed at the bottom of a seed soaking and germination accelerating net cage. The invention further discloses a germination accelerating control system for agricultural planting. The device and method facilitate seed soaking control and uniform addition of the liquid fertilizer, and are worthy of popularization.

The invention relates to the technical field of berry plantation, and especially relates to a berry seed sowing and reproducing method. The berry seed sowing and reproducing method comprises the following steps: S1, selecting seeds: selecting seeds of fruits at the physiological mature stage, and completely separating the colloid of the pulp on the surfaces of the seeds; and S2, sowing: uniformlysowing the seeds obtained in step S1 in a matrix, keeping soil moist, and keeping the ambient temperature in the process from plantation to seed germination ad seedling growth at 20-40 DEG C. A resultof test shows that the seeds in the fruits at the physiological mature stage, selected for sowing, have a good germination potential and a high germination rate. The ripening stage of the fruits at the physiological mature stage is at least 7 days ahead of that of the fruits at the marketable mature stage, so the fruits can be picked early and sowed early to benefit the saving of the maintenancecost of the fruits, and the germination potential in the later stage is good to facilitate intensive seedling growth and benefit the saving the later sowing maintenance cost and the land cost, therebythe method has very positive effects from the perspective of agricultural production, and has great commercial values.

The invention provides a reversely-rotary multifunctional seed-sowing fertilizer-applying ditching machine. The ditching machine comprises a rack, the top of the rack is provided with a seed-sowing fertilizer-applying mechanism, the bottom of the rack is provided with a rotary tillage device, the left and right ends of the rack are provided with a ditching device and a driving device respectively,and the rear side of the rack is provided with a soil compaction device. The ditching machine has the advantages that the seed-sowing fertilizer-applying mechanism, the rotary tillage device, the ditching device, the driving device and the soil compaction device are integrated, the labor intensity is greatly reduced, and not only can seed sowing and fertilizing applying be efficiently conducted,but also the ditching work can be conducted on water channels; in addition, when ditching is not needed, a furrow opener in the ditching device can be lifted up to meet different tillage demands; through pulling of a tractor, the seed-sowing fertilizer-applying mechanism and the rotary tillage device can be driven to work without additionally setting power, the rotating direction of the rotary tillage device is opposite to that of a driving wheel to achieve reversely-rotary tillage, the rotary tillage efficiency is greatly improved, it is ensured that fertilizer and soil are fully mixed, subsequent seed sowing is facilitated, and the germination quality of the seeds is improved.

The invention belongs to the technical field of food processing, and specifically relates to highland barley germinated rice with high gamma-aminobutyric acid content, and a processing method and an application thereof. The processing method comprises the following steps: removing dust from highland barley rice so as to obtain clean highland barley rice; placing the clean highland barley rice in ahigh-temperature environment of 55-70 DEG C for 6-12 h so as to obtain sterilized highland barley rice; soaking the sterilized highland barley rice in warm water containing a bacteriostatic agent at40-50 DEG C for 8-10 h, wherein the bacteriostatic agent is an iron salt solution; performing germination treatment on the soaked highland barley rice by adopting a constant-temperature and constant-humidity incubator or a germination device until germination is finished; and drying the germinated highland barley rice so as to obtain the highland barley germinated rice. With the method provided bythe invention, infectious microbe infections like mildew and rancidity are avoided in the highland barley germination process; loss of nutrient substances is reduced; highland barley germination is neat; the germination rate is 97% or above; meanwhile, the gamma-aminobutyric acid content of the prepared highland barley germinated rice reaches 69.26 mg / 100 g or above.

The invention provides a forward-rotation multifunctional sowing, manure spreading and furrowing machine. The machine comprises a central rack and sowing and manure spreading devices which are symmetrically arranged on two sides of the central rack, the central rack is connected with the sowing and manure spreading devices through telescopic devices, and a furrowing device is arranged on the bottom of the machine; the sowing and manure spreading devices comprise horizontal racks, sowing and manure spreading mechanisms are arranged on the tops of the horizontal racks, rotary tillage devices arearranged on the bottoms, driving devices are arranged at the outer ends, and soil compacting devices are arranged on the rear sides. The machine has the advantages that the central rack and the sowing and manure spreading devices which are symmetrically arranged on two sides of the central rack are adopted, on one hand, the central rack can be pulled by a tractor, and the furrowing device on thebottom can conduct water channel furrowing; on the other hand, the distances between the sowing and manure spreading devices on two sides and the central rack can be adjusted through the telescopic devices, the positions of sowing and manure spreading and the distance among the furrowed water channels can be freely adjusted, and the machine can adapt to different sowing requirements; the sowing and manure spreading devices integrate sowing, manure spreading, rotary tillage and soil compacting and greatly lower the labor intensity.

The invention discloses a method for rapidly determining inflation of seawater fry swimming bladders. 10-25days after fries hatch, 12-18mg / L of anesthetic Aqui-S is adopted; detecting density is 100 fries in 100 ml of water, and anesthesia time is 5-8 minutes generally; when the fries are in the state of being unable to swim, swinging bladders of the fries floating on the water surface are inflated fully, the swinging bladders of the fries staying in water are partially inflated, and the swinging bladders of the fires sinking at the bottom of the water are not inflated. The method is simple and capable of rapidly determining whether the fry swimming bladders are fully developed or not and inflate or not, and is adaptable to promotion and application.

The invention discloses a fast low-cost seedling growing method for cucumbers. The method comprises the following steps of 1 cucumber seed pretreatment, 2 cucumber seed modification, 3 bud forcing treatment and 4 seedling growing management. The fast low-cost seedling growing method for the cucumbers is reasonable in process matching, simple in step and convenient to apply and popularize, has theadvantages of being short in seedling growing period, high in germination rate, low in seedling cultivation cost, high in seedling quality and the like and has great market competitiveness and application and popularization value.

The invention relates to a drought-resistant stubble-cleaning deep-seeding fertilization machine for wheat stubble soil planted corn, which comprises a rack, as well as depth limiting wheels, a seeding belt stubble-cleaning soil-cleaning device, ditching fertilizer applicators, soil compactors, corn single-kernel dibbling devices and seeding compacting wheels, which are sequentially arranged on the rack from front to rear. The two depth limiting wheels are fixed at the left end and right end of a front cross beam of the rack; the seeding belt stubble-cleaning soil-cleaning device comprises a stubble-cleaning soil-cleaning cutter shaft, stubble-cleaning soil-cleaning cutter discs and stubble-cleaning soil-cleaning cutters; multiple stubble-cleaning soil-cleaning cutters are circumferentially arranged on each of the inner disc surface and outer disc surface of each stubble-cleaning soil-cleaning cutter disc; each stubble-cleaning soil-cleaning cutter comprises a handle part and a throwing cutting part, with an included angle of 100-120 DEG C formed between the handle part and the throwing cutting part; the throwing cutting parts of the stubble-cleaning soil-cleaning cutters on the inner disc surface of each stubble-cleaning soil-cleaning cutter disc are bent inwards, and the throwing cutting parts of the stubble-cleaning soil-cleaning cutters on the outer disc surface of each stubble-cleaning soil-cleaning cutter disc are bent outwards. The drought-resistant stubble-cleaning deep-seeding fertilization machine for wheat stubble soil planted corn provides integrated operation of soil tillage, seeding, fertilization and compaction, the operation steps are simplified, and the operation efficiency is improved.

The invention provides a sowing machine capable of preventing accumulation of seedling culture disks. The sowing machine can solve the problem that conventional sowing equipment is inconvenient for the placement of seedling culture disks with seeds, so that the sowing quality and the seedling emergency quality are affected by accumulation of the seedling culture disks with the seeds. Through the arrangement of an inclined plate in the sowing machine, the seedling culture disks with the seeds can be conveniently transmitted onto the ground, so that the accumulation of the seedling culture disksis prevented, and the seedling emergency quality is improved; furthermore, through the arrangement of wheels, the sowing machine is convenient to push, so that the seedling culture disks can be laidon the ground, and the placement efficiency can be improved.

The invention discloses a processing device for germinated brown rice. The processing device comprises a box shell, a heating device, a constant temperature box, a germinated brown rice processing tank, a return pipe and a collecting box; the heating device and the collecting box are arranged at the left side and the right side of the lower portion of the box shell, and the constant temperature box is arranged in the box shell; the germinated brown rice processing tank is installed at the position, close to the upper portion, of the interior of the constant temperature box, an opening in the left end of the germinated brown rice processing tank communicates with an output port in the left side of the heating device through an air inlet pipe, and a lifting vibration assembly and a flow guide assembly are further sequentially arranged at the right side of the germinated brown rice processing tank; and the upper end of the return pipe is communicated with an exhaust opening in the right side of the flow guide assembly, the lower end of the return pipe is further communicated with an air inlet of the heating device, a slidable water absorption plate is arranged on the cross section of a transverse pipeline of the upper end of the return pipe, a conveying assembly located below the germinated brown rice processing tank drains and stores waste water and inferior brown rice generated inside the conveying assembly, and processed high-quality germinated brown rice enters the collecting box through a funnel.

The invention relates to the technical field of berry planting and in particular relates to a passion fruit seed treatment method and a sowing propagation method thereof. The passion fruit seed treatment method comprises the following steps: S1, adding perlite into passion fruit seeds coated with pulp; S2, mixing the seeds and perlite in the S1, rubbing, separating the pulp on the seed surface, and adding water for rinsing. The perlite used in the invention is hard, and can be fully rubbed with the passion fruit seeds to remove the pulp coated on the passion fruit seeds; the perlite is very light in weight, can suspend on the water surface in the water, and is poured into clean water to rinse, and then the pulp, the perlite, the perlite adhered with the pulp and seeds that are not completely separated can float on the water surface, and the seeds of which the pulp is completely separated naturally sink to the water bottom; the perlite is white, the passion fruit seed is black, the seeds with pulp are easily discovered, and the water is drained after no seeds float on the water surface, so that the seeds separated from the pulp can be obtained, and the separation is very convenient.

The invention discloses a matrix treatment method which comprises the following steps: (1) taking a commercially available tobacco matrix as a to-be-treated matrix, pouring the to-be-treated matrix into a mesh screen, and screening to remove impurities or stones with overlarge particle sizes; and (2) preparing a butenolide solution, adding the solution into the screened tobacco matrix to be treated in the step (1), stirring, and fully mixing the matrix and the solution to obtain the treated matrix. The invention further discloses a tobacco seed seedling raising method using the substrate. The low-temperature stress resistance of the tobacco seeds can be enhanced, the seedling rate of the tobacco seeds encountering low temperature is increased, the tobacco seedling quality is improved, the economic loss in the seed seedling raising process caused by low-temperature stress is reduced, and the effect of promoting farmers to increase income and yield is achieved; the cost is low, the method is simple and convenient to implement, the effect is remarkable, and the good application potential is achieved.

The invention provides a method for efficiently inducing polyploidy of native ginseng, comprising the following steps: (1) cutting the stem segments with bud points of soil ginseng tissue culture seedlings, and sterilizing them; (2) using 1-3 mg / ml of autumn Soak in narcissin medium, induce treatment for 24-72 hours, and irradiate with 60Co γ-ray; (3) quickly transfer to 1 / 2MS medium containing 5-10 mg / L colchicine medium for co-cultivation in the dark; 1 / 2 MS medium containing NAA, 6-BA and 6-BA for light culture; transfer to the MS medium containing NAA, 6-BA and tryptophan for light culture to obtain native ginseng tissue culture seedlings, and ploidy identification; the present invention The high mutation rate and high seedling emergence rate induced by polyploidy of native ginseng were effectively realized, a stable and efficient polyploidy induction technology of native ginseng was formed, the mortality of polyploid induced by native ginseng was reduced and the quality of seedling emergence was improved.

The invention discloses a corn seed initiator, a preparation method thereof and a method for promoting low temperature germination of corn seeds. The corn seed initiator at least includes: melatonin and abscisic acid, wherein the mass percent of melatonin in the corn seed initiator is 0.015% to 0.025%, and the mass percent of abscisic acid in the corn seed initiator is 0.018% ~0.028%. The preparation method comprises: dissolving melatonin and abscisic acid in an alcoholic organic solvent, and then distilling to volume with water. The method for promoting low-temperature germination resistance of corn seeds comprises: using the above-mentioned corn seed initiator to carry out surface treatment on corn seeds before sowing. Through the joint action of melatonin and abscisic acid and its concentration selection in the initiator, the corn seed can be surface treated by the corn initiator, which can improve the tolerance of corn seed to low temperature and significantly improve the germination of corn seed at low temperature rate and germination quality, and promote seedling growth.

The invention discloses a seed germination accelerating agent capable of improving drought resistance. The seed germination accelerating agent is prepared from the following raw materials in parts by weight: 6-8 parts of shrimp shell meal, 15-19 parts of cassava residues, 6-7 parts of maple syrup, 3-4 parts of calcium nitrate, 9-11 parts of ammonium bicarbonate, 3-4 parts of chitosan, 52-54 parts of fresh ageratina adenophora, 23-26 parts of fresh oysters, 0.6-0.8 part of a pseudomonas aeruginosa bacterium agent, 1.4-1.6 parts of a high-temperature cellulose-decomposing bacteria bacterium agent, proper amount of 6mol / L hydrochloric acid solution and proper amount of water. According to the germination accelerating agent, organic and inorganic matters are compounded and are cooperated with natural macromolecular substances including the chitosan and the like; the activity of seed enzymes can be effectively improved when seed coat surfaces absorb the germination accelerating agent; and peroxidation of celluloses is reduced and the synthesis of protein and mRNA in the seeds are improved, so that the germination rate of the seeds is wholly improved, the inhibition on internal physiological activity of the seeds by a drought condition is relieved and the germination quality of the seeds is improved.