13results about How to "Promote division" patented technology

This invention belongs to the field of organic agriculture, specifically a biological agent for promoting wheat photosynthesis and its preparation method. Addressing the problems of existing biological agents having relatively simple components, low absorption and utilization efficiency by wheat ears, and a tendency to reduce nitrate reductase activity, nitrogen utilization, and chlorophyll content in wheat leaves, the following solution is proposed: the biological agent comprises the following raw materials in parts by weight: 50-65 parts of yield-enhancing amine, 15-20 parts of choline chloride, 10-15 parts of diethylaminoethanol hexanoate, 5-10 parts of brassinolide, 3-5 parts of p-chlorophenoxyacetic acid, 1-3 parts of calcium diphenylureasulfonate, 2-5 parts of trace agents, and 2-4 parts of ethylene glycol styraldehyde. The biological agent of this invention can promote better photosynthesis in wheat, enhance nitrate reductase activity, and improve nitrogen utilization.

This invention belongs to the field of grape cultivation technology, specifically relating to a fruit enlargement agent for Daqing grapes, its preparation method, and its application. The fruit enlargement agent for Daqing grapes is prepared from an aqueous solution of gibberellin, thiabendazole, and brassinolide. Specifically, the concentration of gibberellin in the fruit enlargement agent is 20 mg / L~25 mg / L, the concentration of thiabendazole is 1.0 mg / L~1.25 mg / L, and the concentration of brassinolide is 0.025 μg / L~0.050 μg / L. The fruit enlargement agent of this invention, combined with fruit thinning treatment, can increase the weight of a single Daqing grape berry by at least 20% while retaining the soluble solids content of the grape.

The device is arranged in the combustion chamber, a flame tube is arranged in the combustion chamber, and the device comprises a high-pressure fuel spray pipe and a concentric-square-shaped evaporation pipe; the high-pressure fuel spray pipe penetrates through the side wall of the combustion chamber and is connected with a high-voltage power supply to serve as an anode; the concentric-square-shaped evaporation pipe penetrates through the side wall of the flame tube to serve as a cathode; an anode oil spraying opening of the high-pressure fuel oil spraying pipe and a cathode expanding type fuel oil opening of the concentric-square-shaped evaporation pipe are coaxially arranged, and the end of the anode oil spraying opening extends into the cathode expanding type fuel oil opening. Through high-voltage arc discharge, fuel oil is physically promoted to be split into tiny liquid drops, and macromolecular fuel oil is partially split into micromolecular fuel with higher chemical activity, so that the chemical reaction rate is greatly increased, and rapid and sufficient combustion of the fuel oil is realized.

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 application discloses a metal chelate modified lignin fertilizer additive for promoting plant growth and increasing chlorophyll content. The material is prepared by taking lignin and urea as raw materials, preparing urea modified lignin through a Mannich reaction, and then performing chelation reaction on the urea modified lignin and metal ion salt. The material can slowly release nitrogen, stabilize chelated trace elements, adjust the plant growth environment and the trace elements in the plant body, significantly increase the chlorophyll content of plant leaves, enhance the photosynthetic efficiency, and promote plant growth and biomass accumulation. The application has the advantages of simple process, easily available raw materials, environmental friendliness, natural degradation, high-value utilization of waste lignin, and provides a new scheme for efficient plant growth promoting materials, and is suitable for popularization in the field of agricultural planting.

This application discloses a method for directly cultivating seedlings from the germination of *Cymbidium goeringii* seeds in Yunnan. The method includes the following steps: sowing *Cymbidium goeringii* seeds on a modified culture medium, followed by 6 months of constant temperature cultivation at 25℃ to obtain small pseudobulbs suitable for direct transplanting. This method is simple to operate; seeds begin to germinate and turn green 20 days after sowing, begin to grow leaves after 45 days, begin to root after 60 days, and show significant root growth after 90 days. The pseudobulbs also enlarge synchronously. After 6 months, the plants naturally shed their leaves in the tissue culture bottle, and the pseudobulbs can be transplanted to the field for acclimatization and cultivation. This method eliminates the need to change the culture medium, removes the manual transfer step in the tissue culture process, and solves the problems of yellowing, difficult rooting, and high contamination rates after transfer of tissue culture seedlings. Furthermore, the plants naturally shed their leaves in the tissue culture bottle, directly obtaining small pseudobulbs without hardening off, and improving the transplant survival rate, which is beneficial for the large-scale cultivation of *Cymbidium goeringii*.

The present application relates to the fields of medicine and cosmetics, and particularly relates to a white tea nanoparticle / Ca 2+ Composite system and preparation method and application thereof. The present application discloses a white tea nanoparticle / Ca 2+ Composite system and preparation method and application thereof. The present application discloses a white tea nanoparticle / Ca 2+ Composite system and preparation method and application thereof. The present application discloses a white tea nanoparticle / Ca 2+ Composite system and preparation method and application thereof. The present application discloses a white tea nanoparticle / Ca

The application belongs to the technical field of cell culture, and particularly relates to a kind of extracellular vesicles containing active mitochondria and a preparation method thereof.The preparation method specifically comprises the following steps: culturing mitochondrial donor cells until the fusion degree reaches 70-80%, discarding the original culture medium, adding DMEM / F12 culture medium containing exosome-free fetal bovine serum, verbascoside and lupeol for continuous culture; collecting cell culture supernatant, and after multiple centrifugation and microporous filter filtration, centrifuging to collect the precipitate, thereby obtaining extracellular vesicles rich in active mitochondria.The extracellular vesicles obtained by the preparation method of the application can significantly promote the proliferation of UVB-induced photoaging human skin fibroblasts, inhibit the expression of senescence-associated proteins p16 and p21, have the effects of repairing photoaging damage and reversing cell senescence, and have a broad application prospect.

The application relates to a carbon material, a preparation method thereof, a negative electrode material and a battery. The carbon material has a rod-like structure, has pores and has a length-diameter ratio of 3-15. The carbon material has a rod-like structure, can reduce inter-particle pores, reduce particle breakage during pressing of an electrode sheet, and is beneficial to improving the compaction density, the energy density and the electrochemical performance of the material.

This application relates to the field of pass-through windows and discloses a control device for a negative pressure clean pass-through window, including a wall and two rotating frames. The pass-through window body is fixedly installed on the inner wall of the wall, and the dimensions of the pass-through window body are adapted to the dimensions of the inner wall. Two shielding doors are rotatably connected to the surface of the pass-through window body, and the dimensions of the shielding doors are adapted to the dimensions of the pass-through window body. A connecting block is rotatably installed at one end of each rotating frame, and an electric push rod is fixedly connected to one end of the connecting block. The two shielding doors are symmetrically distributed about the pass-through window body. The bottom end of the rotating frame is rotatably connected to the top of the shielding doors. This application installs the rotating frame on the top of the shielding doors, and an electric push rod is installed at one end of the rotating frame via the connecting block. This allows the rotating frame to be adjusted in length by the electric push rod to control its rotation, thereby controlling the shielding doors to close automatically after a certain period of time.

The application belongs to the technical field of sporogon culture, and particularly relates to a culture method of sporogon of Brychus based on a liquid culture medium, which comprises the following steps: S1, preparing a Brychus sample with mature sporogon; S2, preparing a spore suspension, taking a mature sporangium of the Brychus and taking out spores, and dispersing the spores into distilled water to prepare a spore suspension; and S3, inoculation, inoculating the spore suspension into a culture bottle containing a liquid culture medium, and then culturing the culture bottle after being covered. The application customizes a special liquid culture medium formula according to the physiological characteristics and growth requirements of the sporogon of the Brychus, and matches highly adaptive culture environment parameters, and the two synergistically ensure the smooth culture of the sporogon of the Brychus from the two dimensions of nutrient supply and environment adaptation.

The invention relates to the technical field of tissue culture of dysosma versipellis, in particular to a tissue culture medium combination and a tissue culture rapid propagation method of dysosma versipellis. The invention provides a dysosma versipellis tissue culture medium combination and a tissue culture rapid propagation method.The dysosma versipellis tissue culture medium combination comprises a germination culture medium, a callus induction culture medium, a cluster bud proliferation culture medium and a rooting culture medium, the callus induction rate can be increased, and the tissue culture rapid propagation rate can be increased. The inductivity and the multiplication coefficient of the multiple shoots of the dysosma versipellis are improved, and the rooting rate of tissue culture seedlings of the dysosma versipellis is improved. According to the tissue culture rapid propagation method for the dysosma versipellis, the dysosma versipellis is high in propagation speed, short in production period, simple in equipment and convenient for industrialized production, and guarantee conditions are provided for production of authentic medicinal materials and postpartum processing and selling.

The present application relates to the technical field of plant chromosome preparation, and specifically discloses a method for increasing the number of mitotic metaphase chromosomes of sugarcane or sugarcane relative genus root tips, comprising: soaking sugarcane or sugarcane relative genus stem double bud segments in an indole-3-acetic acid solution with a concentration of 60-120 mg / L, and culturing in sand or peat substrate; root tip pretreatment: culturing for 2-3 days, selecting healthy and tender root tips, and placing the root tips in saturated p-dichlorobenzene aqueous solution for low-temperature treatment at 8-12 DEG C for 3-5 h; using Carnoy's fixative for fixation; enzymolysis of the root tip growth point; smearing the root tip on a glass slide for preparation; and staining treatment. The method for preparing the present application can achieve the fastest time of only 4 days from root tip culture to chromosome observation, has a short cycle, high efficiency, is convenient and fast for sampling, has a large number of metaphase division phases in the chromosomes, clear morphology, a clean glass slide background, and is convenient for chromosome counting observation and karyotype analysis, and has important significance for the development of sugarcane cytogenetics research.