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81results about How to "Regulate growth and development" patented technology

Modified polyurethane suspended filler and preparation method and application thereof

The invention discloses modified polyurethane suspended filler which comprises, by weight, 10 parts to 80 parts of polyhydroxyalkanoate, 10 parts to 80 parts of activated carbon, 60 parts to 80 parts of polyurethane, 1 part to 10 parts of water-soluble polyurethane solutions, 0 part to 10 parts of bioactivator, 0 part to 1 part of inorganic metal salt, 0 part to 20 parts of organic high-molecular polymer and 0 part to 10 parts of inorganic flocculate. A preparation method of the modified polyurethane suspended filler includes the steps of taking the 10 parts to 80 parts of polyhydroxyalkanoate, the 10 parts to 80 parts of activated carbon, the 0 part to 10 parts of bioactivator, the 0 part to 1 part of inorganic metal salt, the 0 part to 20 parts of organic high-molecular polymer and the 0 part to 10 parts of inorganic flocculate, dissolving the mixture in the 1 part to 10 parts of water-soluble polyurethane solutions, soaking the 60 parts to 80 parts of polyurethane in the solution to obtain the loaded polyurethane suspended filler, and conducting secondary drying after primary drying is conducted to obtain the modified polyurethane suspended filler. The modified polyurethane suspended filler has the advantages of being high in porosity and large in specific area.
Owner:HEFEI JIKUN ENVIRONMENTAL PROTECTION TECH CO LTD

Preparation method for plant growth stimulant and application of plant growth stimulant

InactiveCN106472569AGrowth Stimulation EfficientEfficient disease prevention and stress resistanceBiocidePlant growth regulatorsPhosphateMonopotassium phosphate
The invention relates to the field of biostimulants and particularly relates to a preparation method for a plant growth stimulant and an application of the plant growth stimulant. The plant growth stimulant is prepared through preparing a seed solution from yellow-ocher streptomyces, inoculating the seed solution to a fermentation tank containing a mixed culture medium of maize meal, soybean meal, glutamic acid, potassium dihydrogen phosphate, sodium chloride, seaweed powder and cerealose which are in a certain ratio, carrying out fermentation, and uniformly mixing fermentation broth of the yellow-ocher streptomyces with multivitamins, multiple amino acids and algal polysaccharides which are in a certain ratio. The plant growth stimulant disclosed by the invention can be added into organic fertilizers, water-soluble fertilizers and microbicides according to a certain ratio so as to carry out synergizing, increase yield, prolong drug effect duration and enhance immunity. The plant growth stimulant disclosed by the invention has the effect of playing a role in stimulating natural courses of plants, including being beneficial to the enhancement of nutrient absorption, nutritional effects, abiotic stress resistance and crop quality, promoting the growth of roots, stems and leaves of crops, and improving the resistance of the crops, can be used for stimulating cell division of plants, promoting formation of chlorophyll and enhancing photosynthesis of the plants and has the aims of promoting growth, advancing ripeness, keeping enough flowers and young fruits, increasing yield, improving crop quality and achieving the yield increase and high yield of the crops.
Owner:海南博士威生物科技有限公司

Novel plant growth modifier

The invention discloses a novel plant growth modifier. The modifier is prepared from the following raw materials in parts by weight: 0.1 to 0.7 part of phytocytomine, 15 to 28 parts of tea saponin, 4to 8 parts of medical stone meal, 17 to 22 parts of forchlorfenuron, 1 to 4 parts of gibberellin, 60 to 75 parts of chitosan, 18 to 27 parts of humic acid, 8 to 16 parts of cortex meliae, 9 to 17 parts of radix sophorae flavescentis, 10 to 14 parts of diethyl aminoethyl hexanoate, 5 to 12 parts of brassinolide, and 6 to 11 parts of auxin. Compared with the prior art, the novel plant growth modifier disclosed by the invention has the advantages that the compatibility is scientific, a growth development process of crops can be effectively regulated, and the effects of stabilizing and increasingproduction, improving quality, enhancing resistance of the crops and the like can be achieved; moreover, due to the chitosan, an immune system of plants can be stimulated, defense reaction is activated, disease-resistant active substances of the plants are promoted so as to inhibit the diseases and the growth of the plants is promoted. In addition, traditional Chinese medicine components are addedin the plant growth modifier, so that the plant growth modifier has the effects on sterilization, prevention of plant diseases and insect pests and the like, and the use of pesticides such as a bactericide is reduced.
Owner:徐州农丰生物化工有限公司

Drought resistant agent for plants

The invention discloses a drought resistant agent for plants. The drought resistant agent comprises, by weight, 10 to 100 parts of lanthanum chloride, 25 to 100 parts of arginine, 10 to 100 parts of cystine, 25 to 100 parts of aspartic acid, 2 to 50 parts of vitamin B1, 2 to 50 parts of vitamin B2, 1 to 10 parts of selenium element, 2 to 20 parts of plant-growth regulator, 1 to 10 parts of antibacterial and antiseptic agent, 1 to 3 parts of an osmotic agent, 1 to 16 parts of a trace element and 1 to 90 parts of alginate oligosaccharide. A preparation method for the drought resistant agent comprises the following steps: (1) preparing alginate oligosaccharide; (2) preparing a mixture; and (3) carrying out uniform mixing under stirring. The active component alginate oligosaccharide of the drought resistant agent is cheap and can promote prosperity of plant roots, adjust transpiration of plants, enhance the stress resistance of plants and the selenium content of fruit, regulate growth and development of plants, obviously improve in-vitro biological enzyme activity in crops, accelerate metabolism, promote accumulation of permeation substances, and improve water absorption, water retention and free radical removal capability of crops; the drought resistant agent has excellent drought resistance and yield increasing effect; and the preparation method is simple.
Owner:JILIN ACAD OF AGRI SCI

Continuous gradient bionic manufacturing method based on pneumatic accurate control active cartilage scaffold

The invention provides a continuous gradient bionic manufacturing method based on a pneumatic accurate control active cartilage scaffold. Based on sodium alginate SA ionic crosslinking and gelatin Gel low-temperature solidification forming mechanisms, SA, Gel, hydroxyapatite HA and cartilage cell suspension liquid are used as scaffold base materials, and according to the morphological characteristics of natural soft tissues, an extrusion deposition 3D printing technology based on high-pressure controllable gas is adopted to realize the preparation of an embedded living cell three-dimensional soft scaffold; and in the preparation process, the pressure applied to different charging barrels is dynamically and accurately regulated and controlled in real time, so that the accurate controllability of the component content is realized, then real-time dynamic mixing and continuous gradient laying of different component materials are realized through a dynamic mixing spray head, and the scaffold is crosslinked under the combined action of a CaCl2 solution and a low-temperature platform. The problems that an existing cartilage scaffold material is single in concentration, and the single material components of each layer in a layered structure do not conform to the anatomical characteristics of the continuous gradient of natural cartilage are solved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Promoter with both plant overground tissue organ specificity and photoinduced specificity and application thereof

The invention relates to a newly discovered DNA sequence which can be used as a promoter for regulating and controlling specific expression of a target gene in tissue organs of a plant overground part in a photoinduced form. A promoter sequence of an AtcpSecY2 gene is cloned from a model plant arabidopsis thaliana; and subsequently in a transgenic arabidopsis thaliana, the promoter is confirmed to be capable of driving a GUS reporter gene to be specifically expressed in the tissue organs of the plant overground part in the photoinduced form. With application of the promoter, a 'promoter-target gene to be expressed' fusion gene is obtained by construction, a plant is transformed, and the transgenic plant having both plant overground tissue organ specificity and photoinduced specificity expression of the target gene can be obtained. The promoter not only contributes to research on a transcription regulation expression mode of plant genes under a condition of illumination, but also is applied in plant gene engineering to allow exogenous genes to be moderately expressed along with plant physiological statuses under the condition of illumination, at the same time, accurately and effectively changes photosynthetic characteristics and agronomic characters of the plant overground part, realizes crop strain improvement, and has wide application value.
Owner:JIANGXI AGRICULTURAL UNIVERSITY

Mist culture seedling exercising device and seedling exercising method for millettia specisoa tissue culture seedlings

The present invention discloses a mist culture seedling exercising device for millettia specisoa tissue culture seedlings. The mist culture seedling exercising device comprises a mist culture box forexercising seedlings, a temperature and humidity illumination system for controlling temperature and humidity and illumination in the mist culture box, an air pump device for providing spraying powerfor the mist culture box, a liquid storage box for providing a nutrient solution for spraying of the mist culture box and a filter, for filtering the nutrient solution entering the liquid storage box,arranged in the liquid storage box, mutually crossed air flows sprayed by first branch air pipe needle heads and second branch air pipe needle heads of the mist culture box are concentrated on liquiddischarged by branch liquid pipe head ports, and the liquid discharged by the branch liquid pipe head ports are sprayed into an aerosol form so as to realize mist seedling exercising of the millettiaspecisoa tissue culture seedlings. The nutrient solution formed by the mist culture seedling exercising device has fine and evenly dispersed aerosol particles, and the mist culture seedling exercising device is beneficial for roots and stem leaves of the millettia specisoa tissue culture seedlings to fully absorb the nutrient solution, promotes healthy growth, a developed root system and stout stems of the millettia specisoa tissue culture seedlings, and improves a transplanting survival rate and an utilization rate of the nutrient solution.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI

Water culture seedling hardening method and device of beautiful millettia root tissue culture seedlings

The invention discloses a water culture seedling hardening method of beautiful millettia root tissue culture seedlings. The method comprises the following steps of 1) making preparation before transplanting: disinfecting a seedling hardening environment and preparing a nutrient solution with the pH value of 5.8-6.5, wherein every 10 L of the nutrient solution contains 0.01-0.05 mg of brassinolide,5-10 mg of nucleotide and other nutritional ingredients; 2) planting the water culture seedlings: planting the disinfected beautiful millettia root seedlings on a planting plate, placing the plantingplate on a cultivation tank filled with the nutrient solution, immersing one part of the root system into the nutrient solution, and not immersing the other part of the root system into the nutrientsolution; and 3) performing water culture management: controlling the temperature, humidity and illumination intensity of the seedling hardening environment according to regulations, replacing the nutrient solution when not more than 1/3 of the root system is immersed in the nutrient solution, and hardening the seedlings for a period of time. According to the method, the promotion effect of the brassinolide and the nucleotide is utilized, the moisture and nutrients of the root system are sufficient, and a part of roots are remained to be in contact with air for breathing, so that the root system is facilitated to grow and the transplanting survival rate is increased.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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