25results about How to "Improve seedling rate" patented technology

The invention relates to the technical field of unmanned aerial vehicle seeding, and discloses an unmanned aerial vehicle with seeding units and capable of uniformly seeding in rows, the unmanned aerial vehicle comprises an unmanned aerial vehicle main body and a plurality of seeding units, the unmanned aerial vehicle main body is provided with an aircraft cross bar, and each seeding unit is detachably mounted on the aircraft cross bar; wherein each seeding unit comprises a seeding body, the top of the seeding body is provided with a seed bin and a feed port, the lower part of the seeding body is provided with a discharge port, the discharge port is provided with a material detection sensor, and the material sensor is used for detecting the outflow condition of seeds; a roller mechanism is arranged in the seeding body, a discharging channel is arranged below the roller mechanism, an opening is formed between the top of the discharging channel and the seed discharging bin, the discharging port is located in the bottom of the discharging channel, and a seed containing groove mechanism is arranged on the roller mechanism; the idler wheel mechanism brings seeds into the discharging channel from the opening through the seed containing groove mechanism on the idler wheel mechanism in the rotating process, and then the seeds are discharged through the discharging opening.

The invention discloses an application of an OsATS3 gene in regulation and control of rice flooding stress tolerance. According to the invention, an OsATS3 gene is constructed to edit a knockout vector, an agrobacterium tumefaciens-mediated method is adopted to transform rice calluses, and a knockout strain of the OsATS3 gene is obtained through screening, and the knockout strain of the OsATS3 gene shows a phenotype that after seeds germinate under a waterflooding condition, seedling root systems are developed, seedling growth of overground parts of seedlings is faster, the growth speed of first leaves is faster, and the seedling rate is high; the method has great significance in solving the problems of slow seedling growth, inhibited radicle development, low seedling rate and the like in the rice direct seeding process, and has a wide application prospect in plant breeding.

The invention discloses a production method of hybrid rice seeds, and belongs to the field of agricultural breeding. According to the method, high-purity hybrid seeds are produced through the technical means of excellent female parent reproductive line cultivation, reproductive line reproduction, preliminary fluorescent sorting, further fine seed screening, artificial seed shell adding, hybrid seed production and the like. According to the method, the technical problem that the sorting effect and the seed purity of colorless seeds and colored fluorescent seeds are influenced due to the fact that the precision of a color sorting technology cannot reach 100% due to difference or abnormal development of maturity of reproductive line seeds of a common nuclear male sterile line can be solved, and sterile line seeds meeting the market standard are obtained.

The invention provides a truffle mycorrhizal seedling cultivation method, and relates to the technical field of plant cultivation. The truffle mycorrhizal seedling cultivation method mainly comprises the following steps: culturing a host seedling, sterilizing truffles, mixing the sterilized truffles with a nutritional agent prepared from anthocyanin and folic acid, pulping together to prepare a suspension, mixing the suspension with a growth agent prepared from indoleacetic acid and tea saponin to prepare a microbial inoculum, inoculating the host seedling with the microbial inoculum, and carrying out seedling hardening cultivation. The method overcomes the defects in the prior art, effectively shortens the mycorrhiza formation time, promotes the growth of mycorrhiza seedlings, ensures the survival rate of subsequent commercial seedling transplantation, comprehensively reduces the cultivation loss, and improves the economic benefits.

The invention relates to a rice precision sowing and seedling raising matrix and a seedling raising method. The rice precision sowing and seedling raising matrix comprises the following components in parts by mass: 25-40 parts of soil, 5-20 parts of peat, 5-20 parts of a plant fermentation product, 0.5-1 part of inorganic salt, 1-3 parts of polysaccharide, 0.01-0.2 part of auxin and 1-10 parts of modified silicon dioxide. Wherein the modified silicon dioxide is obtained by grafting polybasic acid to silicon dioxide and then reacting the grafted polybasic acid with epoxy resin and ethanolamine. The soil is compounded with the inorganic salt, the polysaccharide, the auxin, the modified silicon dioxide and other components, so that the compatibility and affinity among the various components are improved, the stability of nutrient substances can be improved, the rice can be promoted to absorb nutrients required by growth more efficiently, the survival rate and the growth effect of seedlings are improved, and the yield of the rice is increased. The efficient and accurate rice seeding and seedling raising functions are achieved, the problems existing in the prior art are solved, and good application prospects are achieved.

The invention provides a sesbania cannabina doubling and rapid propagation integrated method, and relates to the technical field of sesbania cannabina breeding, and the method comprises the following steps: rubbing sesbania cannabina seeds to break seed coats, disinfecting the seeds, soaking the sesbania cannabina seeds for hydration, inducing genome doubling by colchicine, and then carrying out rooting culture; after cotyledons are unfolded, water culture seedling hardening is carried out; after compound leaves grow, genome ploidy identification is carried out, and the successfully doubled sesbania can be transplanted. The period of the whole method is 18 days, and the sesbania polyploidy induction rate can reach 50% or above. According to the method, sesbania genome doubling is achieved for the first time, a large number of polyploid plants meeting the breeding requirement can be directly obtained, the seedling raising time can be shortened, the plant survival rate can be increased, the production cost can be reduced, and integration of sesbania genome doubling and plant rapid propagation is achieved.

The invention belongs to the technical field of agricultural planting, and discloses a picrorhiza scrophulariaceae seed stem cultivation and cutting seedling raising composition and method, and the composition is composed of naphthylacetic acid, indoleacetic acid, hymexazol, carbendazim wettable powder and a water medium; in the cultivation process of the picrorhiza scrophulariiflora seed stems, the thick and strong degree of the picrorhiza scrophulariiflora seed stems is reduced and the branch number and the branch length of overground stems are increased through fertilizer and water regulation, so that more propagation materials are obtained; then cutting the seed stem into small sections of 3-5cm so as to increase the propagation coefficient to a greater extent; meanwhile, a formula and method for seed soaking (graded seed soaking) and seedling stage water and fertilizer management are established, and the rooting rate and the seedling rate are increased; compared with traditional division propagation, the propagation coefficient of the picrorhiza seedling cultivated by the method is increased from 1: 5 to 1: 30-50 and is increased by more than 6 times.

The present application belongs to the technical field of tobacco planting, and provides a whole-cycle planting method for improving quality and increasing yield of tobacco, comprising the following steps: (1) seed treatment: after cleaning the seeds with water, the seeds are soaked in an elicitor composed of gibberellin with a concentration of 50-1000 mg / L and 10-15 mL / L of Bacillus polymyxa dgnkzx004 fungicide fermentation liquor, then subjected to light treatment, and washed and dried; (2) seedling raising: mixed bacteria cow manure fermentation products are added to the seedling raising substrate, and Bacillus polymyxa dgnkzx004 fermentation liquor is applied for seedling raising; (3) transplanting: the tobacco seedlings are transplanted, and the mixed bacteria cow manure fermentation products are used as fertilizer for fertilization. The present application promotes seed germination rate, improves seedling emergence rate and seedling survival rate, and can significantly improve the growth potential of tobacco root system and the yield of tobacco, and significantly reduce the arsenic content in tobacco leaves.

The invention discloses a lavender anther culture method, and relates to the technical field of plant tissue culture. The method comprises the following steps: step 1, collecting anther; step 2, disinfecting and inoculating anther; step 3, carrying out callus culture on the anther; step 4, rooting culture of anther regeneration seedlings; and step 5, hardening and transplanting anther regeneration seedlings. According to the method, the lavender anther is collected, and the callus and regenerated seedlings are subjected to induction culture, so that the callus induction rate and the seedling rate are increased, and the problems that the callus induction rate is low and the seedlings cannot be induced in the current lavender anther culture process are solved; according to the technical scheme, technical support is provided for lavender haploid breeding through the anther culture technology.

The invention belongs to the technical field of crop cultivation, discloses a method for cotton to resist cold damage and drought and reduce yield loss, and particularly provides application of trehalose to improvement of resistance of cotton to low-temperature cold damage and drought stress. The method comprises the following steps: firstly, soaking cotton seeds with trehalose with a proper concentration so as to improve the seedling rate of cotton under low-temperature cold injury; secondly, spraying is conducted on cotton in the seedling stage and the bud stage under drought stress. The two trehalose treatment methods can promote the growth of cotton, increase the biomass accumulation, improve the distribution proportion of biomass in buds, flowers and bolls, improve the yield and reduce the loss of cotton yield caused by low-temperature cold injury stress and drought stress.

This invention discloses a method for the rapid asexual propagation of a new ginger lily variety, comprising the following steps: obtaining rhizomes; treating with gibberellin, stacking several layers of rhizomes in a frame by layering them with wet straw, and then placing the frame containing the rhizomes and straw in a dark environment to promote germination; removing rhizomes with sprouting buds, quickly dipping them in a chlorpyrifos solution, and then cultivating them in a shaded area with humidity, allowing the stem buds to grow and differentiate into root tip tissue; uniformly spraying a growth regulator solution onto the surface of the rhizomes and stem buds, cultivating them in a shaded area with humidity, allowing the stem buds to grow into seedlings, dividing the rhizomes to obtain seedlings with complete root systems, and transplanting them; neatly arranging the transplanted seedlings on a seedbed in a shaded area, cultivating them with humidity, watering with a hymexazol solution at regular intervals, spraying foliar fertilizer when the seedlings develop leaves, and transplanting or releasing them from the nursery when the leaf and stem height reaches the standard. Advantages include: balancing the speed and seedling survival rate of asexual propagation of ginger lily, improving the propagation coefficient and seedling quality of the 'Huayao' ginger lily.

The invention relates to the field of plant breeding and tissue culture, in particular to a tissue culture method of pogostemon cablin. The pogostemon cablin protoplast is prepared by combining the cellulase R10 mutant and the pectinase Y23, protoplast fusion is carried out under induction of PEG, the yield and activity of the protoplast can be remarkably improved, the fusion rate and seedling growing rate of the protoplast are improved, a new direction is provided for cultivation of a new variety of pogostemon cablin, and the pogostemon cablin protoplast can be used for preparing the pogostemon cablin protoplast. Wide application prospects are realized in the industry.

The present invention relates to the field of plant breeding and tissue culture, and in particular to a patchouli tissue culture method. The present invention prepares patchouli protoplasts by combining a cellulase R10 mutant and a pectinase Y23, and performs protoplast fusion under the induction of PEG, which can significantly improve the yield and vitality of the protoplasts, and improve the fusion rate and seedling rate of the protoplasts, providing a new direction for the cultivation of new varieties of patchouli, and having broad application prospects in the industry.

The invention discloses an arrowroot tissue culture process which comprises the following steps: treating an explant, disinfecting, carrying out inoculated culture, cutting off a newly grown terminal bud when the terminal bud of the explant germinates and grows, removing the top of the terminal bud, inoculating the terminal bud into a starting induction culture medium to carry out adventitious bud induction, and removing useless parts of a block mass obtained in the previous step, so as to obtain the arrowroot. The method comprises the following steps of: inoculating the tissue culture seedlings obtained in the previous step into a proliferation and propagation culture medium for proliferation and propagation culture, removing useless parts of the tissue culture seedlings obtained in the previous step, inoculating the tissue culture seedlings into a hormone-reducing culture medium for hormone-reducing culture, then inoculating the tissue culture seedlings into a transition culture medium for transition culture, directly screening and planting the seedlings which reach the seedling standard, and performing rooting culture on the seedlings which do not reach the seedling standard. The method has the advantages that the proliferation rate can be greatly increased, the yellow leaf rate is reduced to 27.7%, the rooting rate is increased to 95.2%, and the seedling rate is increased to 91.6%. The productivity of the arrowroot is greatly improved, and great economic benefits are brought.

The invention belongs to the technical field of tobacco planting. The invention provides a complete-cycle planting method for improving quality and increasing yield of tobacco, which comprises the following steps: (1) seed treatment: cleaning seeds with water, soaking the seeds in an initiator consisting of gibberellin with the concentration of 50-1000mg / L and paenibacillus polymyxa dgnkzx004 degerming fermentation liquor with the concentration of 10-15mL / L, then carrying out light treatment, cleaning and airing; (2) seedling raising: adding a mixed bacterium cow dung fermentation product into a seedling raising substrate, and applying paenibacillus polymyxa dgnkzx004 fermentation liquor for seedling raising; (3) transplanting: transplanting the tobacco seedlings, and applying fertilizer by using the mixed bacterium cow dung fermentation product as fertilizer. According to the method, the seed germination rate is increased, the emergence rate and the seedling rate are increased, the tobacco root growth vigor and the tobacco yield can be remarkably improved, and the arsenic content in the tobacco leaves is remarkably reduced.

The invention relates to a method for preventing and treating root rot of mountain edible peas, and belongs to the technical field of pea disease prevention and control. The method comprises the steps of seed dressing with a medicament, planting in high ridges and shallow sowing furrows, and watering the roots with microbial agents and fertilizers in the seedling stage. The invention is characterized in that the root rot of edible peas is comprehensively prevented and treated by combining multiple technical measures such as seed dressing with a medicament, planting in high ridges and shallow sowing furrows, increasing the application of microbial agents and organic fertilizers, watering the roots with microbial agents and fertilizers in the seedling stage, and reasonable crop rotation, so as to complement each other's strengths and weaknesses, and achieve the best prevention effect. The method of the invention is simple and easy to implement, has a good disease prevention and control effect, saves medicine, time and labor, is safe for the environment, reduces the incidence of root rot of fresh edible peas, and improves yield and quality.

The invention relates to a method for increasing the seedling rate of seeds of extremely-small-population plants, i.e., hedyotis diffusa, and improving the growth state of seedlings. The method comprises the steps of collecting and screening the seeds, cleaning and sterilizing the seeds, promoting germination of the seeds, planting, transplanting and managing the seedlings. According to the method, the seedling rate of the seeds and the growth performance of the seedlings are remarkably improved, the seedling rate of normal seeds reaches 96.72%, the seedling rate of small seeds reaches 90.25%, the seedlings can grow to 45.52 cm in one year, the ground diameter can reach 5.04 mm, the seedlings are robust and consistent in growth state, and a seedling foundation, a scientific basis and a technical support can be provided for returning to nature and achieving population reconstruction; and a technical foundation is laid for the aspects of biological protection, ecological restoration, resource development and utilization and the like of the species, and the method has great practical significance for rescuing the endangered tree species.

The invention belongs to the technical field of seedling breeding of traditional Chinese medicinal materials, and discloses a one-step seedling forming method for tissue culture seedlings of cremastra appendiculata. According to the method, related substances such as a plant nutrient element 1 / 2 MS culture medium, hormones NAA, 6-BA, ZT, cane sugar, fresh milk, agar and activated carbon are mainly used for carrying out tissue culture and seedling induction of the cremastra appendiculata plants. The method can directly germinate seeds, induce proliferation differentiation, root and grow seedlings. According to the one-step seedling method, the processes of tissue culture transfer, continuous culture and the like such as proliferation differentiation and rooting induction of tissue culture seedlings are reduced, the time cost and the midway transfer cost are saved, seeds are used as explants for one-step seedling, and after culture is conducted for 8-9 months, the root system of one-step seedling is 4-5 cm long, and the leaf bud is 10-15 cm long. The invention solves the problems of long time consumption, high cost and tedious multi-stage transfer process in the existing plant tissue culture. The method specifically aims at the one-step seedling forming method of the cremastra appendiculata tissue culture seedlings, a simplified culture process is adopted, the culture period is effectively shortened, the cost is reduced, and the consistency and health degree of plant growth are enhanced.

The invention relates to the technical field of seed germination and seedling cultivation, and provides a method for rapidly improving the germination rate of passion fruit seeds. The method utilizes the chemical properties of nitric acid, which are strong oxidizing and corrosive, to corrode a seed shell to change its physical properties, enhance permeability, and promote seed germination. The seed shell structure of the passion fruit seeds is tight and has mechanical constraint on the growth of the seed embryo. After the seeds are soaked in nitric acid liquid, the air permeability and water permeability of the seed shell are increased, and physical temperature change is adopted to adapt to the original living habits of the seeds, thereby promoting the passion fruit seeds to reach a germination peak in a short time. After being applied to sowing and seedling cultivation, the seedling rate is high, the seedlings are uniform and strong, the seedling cultivation period is shortened, the cost is reduced, the needs of the majority of fruit farmers for seedling planting are met in time, and seedling cultivation technology support is provided for the development of the passion fruit industry. Through the technical scheme, the problems of slow germination, low germination rate, and long seedling cultivation period in the general passion fruit seed germination rate method in the prior art are solved.

The invention belongs to the technical field of flue-cured tobacco seedling raising, and particularly relates to a dry-wet alternating flue-cured tobacco seedling raising method suitable for northeast regions. Selecting a leeward and sunny place as a seedling raising field, building an overwintering warm shed as a seedling raising shed, and arranging a reservoir in the seedling raising shed so as to improve the temperature of water for seedling raising; a plurality of nursery ponds are manufactured in the nursery shed, the bottoms of the nursery ponds are flat, and the nursery ponds are filled with nursery water in the reservoir; putting the seedling raising tray filled with the flue-cured tobacco seeds into a seedling raising pond; the seedling raising greenhouse is ventilated every day, and in the seedling raising process, the seedling raising pond is subjected to multiple times of treatment 1 and then subjected to multiple times of treatment 2 till 7-10 days before transplanting; disease-resistant treatment is conducted, topdressing is conducted three times in the seedling raising period, seedbed fertilizer and water are cut off 7-10 days before transplanting, water control and seedling hardening are conducted, and flue-cured tobacco seedlings are transplanted into a field for planting; according to the method, a dry-wet alternating environment of the seedling bed is created, so that the effect of hardening seedlings and raising seedlings at the same time can be achieved, and moss can be reduced.

The invention relates to a walnut germination accelerant, a preparation method thereof, a method for promoting walnut seed germination and application thereof, and belongs to the technical field of fruit tree cultivation. The walnut germination accelerator comprises the following components: gibberellin, naphthylacetic acid, triacontanol, indolebutyric acid and water. The method for promoting germination of the walnut seeds comprises the following steps: soaking the walnut seeds in warm water, drying, soaking the walnut seeds in a walnut germination accelerant, airing and sowing. The walnut germination promoter and the method for promoting walnut seed germination can improve the germination rate and the seedling rate of walnut seeds, and have the advantages of high safety, strong stability and good effectiveness.

The invention belongs to the technical field of plant biology, and discloses a culture medium for tissue culture of ampelopsis japonica, the culture medium is a one-step seedling culture medium, and the culture medium is composed of inorganic salt, an organic supplement, a growth regulator and a plant substrate; the method is specially used for efficient tissue culture of the ampelopsis japonica, the tissue culture efficiency of the ampelopsis japonica is improved, meanwhile, the operation process of plant culture is simplified, the growth time in the seedling stage is remarkably shortened, the ampelopsis japonica tissue is effectively prevented from being infected by microorganisms, and necrosis of the ampelopsis japonica tissue is effectively prevented.

The application belongs to the technical field of plant breeding, and particularly relates to a seed pretreatment method and seedling raising method for improving the breeding efficiency of Carpinus putolekii, which comprises the following steps: disinfecting Carpinus putolekii seeds, and performing temperature-variable stratification treatment on the disinfected seeds to obtain pretreated Carpinus putolekii seeds; the temperature-variable stratification treatment comprises: 23-27 DEG C warm treatment for 30 days, and 3-5 DEG C cold treatment for 60 days. The pretreatment method can significantly shorten the germination time of Carpinus putolekii, improve the germination efficiency, and provide technical support for the protection and large-scale seedling raising of the species. The results of the examples show that, by using the method provided in the application, the germination time of Carpinus putolekii seeds is reduced to 14 days, the germination rate is 93.1%, and the seedling rate is 89.7%, so the germination is rapid, and the uniformity is high.

The method for improving the utilization rate of the recalcitrant seeds of the extremely dangerous plant pimpinella angustifolia comprises the steps of seed collection, seed pretreatment, seed sterilization, induced germination, seedling culture, acclimatization and transplantation and germplasm preservation, and can utilize immature seeds, semi-mature seeds and seeds which cannot germinate and form seedlings under mature natural conditions without water loss to the maximum extent; under the condition that the number of the seeds is certain, more seeds are promoted to be converted into seedlings; according to the method, in-vitro preservation of the hedyotis angustifolia seeds within a certain time is achieved, the limitation that seed germination and utilization must be conducted in the seed maturing and harvesting season is broken through, the utilization rate of the seeds is remarkably increased, and a sterile material is provided for long-term preservation of germplasm resources and large-scale breeding; a technical foundation is laid for the aspects of biological protection, ecological restoration, resource development and utilization and the like of the species, and great practical significance is achieved for rescuing the endangered tree species.

The invention discloses a seed soaking agent and application thereof in promoting early maturing of rape and increasing the yield of the rape. The seed soaking agent provided by the invention contains kaurenoic acid, zearalenone, phosphatidyl ethanolamine and dimethyl allyl triammonium diphosphate. Before the rape seeds are sown, the whole growth period of the rape can be effectively shortened by soaking the rape seeds with the seed soaking agent, early maturing of the rape is achieved, and the requirement for planting the rape in a temperature and light resource tight balance area and a constraint area is met. In addition, by utilizing the seed soaking agent, the seedling rate and the effective plant number of the oilseed rape can be effectively increased, and the yield of the oilseed rape is increased. Based on the seed soaking agent, the invention also provides a method for promoting the early maturing of the rape and / or increasing the yield of the rape, and compared with a method for promoting the early maturing of the rape through a cultivation means, the method for promoting the early maturing of the rape is simple to operate and does not need to consume excessive labor cost. The oilseed rape planting area can be enlarged, and the oilseed rape yield is increased.