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143 results about "Growth regulation" patented technology

Plant insecticidal protective agent and application thereof

The invention belongs to the technical field of the farm chemical, and in particular relates to a plant insecticidal protective agent and an application thereof. The invention provides the plant insecticidal protective agent which is recomposed by food suppressing hydrazine and organic phosphorus (I), pyrethroids insecticides (ii), insect growth regulation agent (III), Macrolides (IV), heterocyclic insecticidal component (V), carbamates (VI) or Nereistoxin pesticide and the application thereof. The recomposed insecticidal composite remarkably improves the insecticidal effect, at least has four acting ways at the same time such as touch out, stomach toxicity, internal absorption and antifeedant so as to adequately protect the plant, favors the delay of the production of the drug resistanceof the insects through different acting ways, and enlarges the pest control spectrum. The composite can be widely applicable to the control of different chewing mouthparts, piercing-sucking mouthparts, lapping mouthparts and rasping mouthparts pests.
Owner:QINGDAO STAR CROPSCI

Dwarfing, close planting and early fruiting culturing method for lychees with shape of chicken beak

The invention provides a dwarfing, close planting and early fruiting culturing method for lychees with the shape of a chicken beak. The culturing method comprises the following steps: grafting, namely selecting Sapindaceae dwarfing rootstocks and adopting scion grafting method to perform cleft grafting; field setting, namely arranging the planting holes in rectangle or staggered different line manner; nutrient and water management, namely primarily adopting the method of frequent and low-amount fertilization, applying phytocide, and utilizing a mulching film; shaping and trimming, namely controlling each tree crown to be an expanding heart shape with two layers and seven leader branches through trunk fixing, bud carving and branch trimming, and controlling tree height through cutting the trunk in a ringing manner, trimming in a retractable manner in the winter, and promoting growth of new buds through cutting main branches and side branches in a ringing manner; drug spraying, namely applying growth regulation substances; insect disease prevention. The culturing method adopts the dwarfing rootstocks which is in the same family as the lychees with the shape of the chicken beak to complete grafting; the tree height and tree crown shape are controlled through trimming; the seedlings of lychees with the shape of the chicken beak is shortened through applying drugs; the fertility is reserved through utilizing the mulching film; the sunlight utilization ratio is increased, and early fruiting and high yield of the lychees with the shape of the chicken beak are obtained; the culturing method provided by the invention is quick in bringing production, early in fruiting, high in yield, and good in fruit quality.
Owner:北海市东雨农业科技有限公司

Double-cropping cultivation method of grapes

The invention discloses a double-cropping cultivation method of grapes. The method comprises routine management in an open field during a culturing and growing period, temperature, humidity, lighting and nutrient and water management in a sunlight greenhouse, growth regulation and control of branches, leaves, flowers, fruits and roots, as well as routine cultivation and management techniques. Premature grape varieties with fast flower bud differentiation, strong repeated fruiting capability, high and stable yield and high disease resistance are selected; trimming, bud promotion, as well as pinching and lateral shoot processing of first-crop fruit and second-crop fruit are performed for matching; lateral shoot processing and spike determination management are performed on the second-crop fruit; and more than two times of fruiting in one year is achieved through a comprehensive management technology of forced pinching and lateral shoot processing. According to the method, grapes are cultivated in semiarid areas in western part of Liaoning province in the north, two times of fruiting in one year are achieved, a use mode for land cultivation of the grapes in the north is changed, and the grape yield is increased by more than two times; the land use capability is doubled, and appreciation of land value is maximized; and product quality, yield, economic benefit and safety of the grapes are better than the grapes cultivated under natural conditions and in a traditional sunlight greenhouse.
Owner:任学平

An alginate dressing for treating bedsore and a preparing method thereof

ActiveCN104758977APromote healingNo tissue proliferationAbsorbent padsBandagesPorosityComposite film
The invention relates to an alginate dressing for treating bedsore and a preparing method thereof. The dressing has a double-layer composite structure, namely the dressing comprises a base layer and a surface layer. The base layer is an alginate composite film layer. The surface layer is a natural rubber film layer. The preparing method includes following steps of: A) preparing a shark collagen solution, B) preparing a coaxial electrospinning outer layer solution, C) preparing a coaxial electrospinning core layer solution, D) spinning, E) crosslinking, F) dipping, G) preparing an epoxy natural rubber film, and H) compositing. The dressing has good biocompatibility, and has controllable growth regulation, good hygroscopicity, good anti-inflammation performance and good antibacterial performance of synthetic biological materials. The dressing is capable of improving local blood supply of wounds, promoting tissue growth and accelerating wound healing, shows good multifunctional properties, has good porosity, soft and comfort hand feeling, good compliance and using convenience, and can be used in the field of modern biomedicine, especially in the field of bedsore treatment and nursing, and the like.
Owner:HENAN YADU IND

Original-ecological bamboo rat farm and original-ecological farming method

The invention relates to an original-ecological bamboo rat farm and an original-ecological farming method. The farm comprises a shed distributed along east and west directions, the shed comprises 3-8 unit breeding houses, each unit breeding house is divided into an upper layer and a lower layer, the upper layer is a living quarter which is divided into a rest area and a discharge area, a spiral slide ladder connected from an automatic reset door to the ground is arranged on the outer side of each unit breeding house, the lower layer of each unit breeding house is an isolation area, and dry wood blocks are piled in the isolation area. According to growth regulation of bamboo rats, natural habits of the bamboo rats are restored, stress of the bamboo rats is reduced, disease resistance of the bamboo rats is obviously enhanced, environment inside and outside the breeding houses is clean and tidy, pathogenic microorganisms are reduced, the problem about poisonous and harmful material residues in bamboo rat meat is solved, problems that the bamboo rat meat is fatty and poor in taste can be solved as well, and the bamboo rat meat is tender and tasty.
Owner:卓礼仕

Dwarfing and pest-killing corn plant core-removing agent

The invention relates to a dwarfing and pest-killing corn plant core-removing agent, which comprises the following raw material medicaments in percentage by weight: diethyl aminoethyl hexanoate 0.05-2.5, ethephon or paclobutrazol 0.1-3, chlorpyrifos 0.3-3, imidacloprid 0.01-0.09, pirimor 0.1-2.5 and auxiliary the balance. The medicament can complete pest prevention and control and growth regulation by one time of core-removing medicament application, wherein in one time of core-removing medicament application, various corn pests such as ostrinia nubilalis and aphid are prevented and controlled; the average corn plant height is reduced by 20 to 50 centimeters; the prevention and control rate of the ostrinia nubilalis and core-eating worms is over 80 percent; the prevention and control rateof the aphid is over 95 percent; and the corn yield is increased by more than 20 to 50 percent. The medicament is simple convenient in application, labor-saving, medicament-saving and safe, prevents harm caused by the ostrinia nubilalis and aphid in a whole period of growth of corns and completely solves the problem of pest prevention and control in a post-period of corns, thereby increasing cornyield and harvest, reducing environmental pollution and being worthy to be promoted and used.
Owner:刘建设

Wheat double haploid production method by wheat-and-maize distant hybridization

The invention belongs to the field of haploid breeding technology and discloses a wheat double haploid production method by wheat-and-maize distant hybridization. The main technological characteristics of the method comprise steps of planting, induction of haploid embryo, dissection of haploid embryo, respective isolated culture of small embryo and big embryo into haploid plantlet, vernalization,chromosome doubling, transplantation and harvesting. The big embryo is cultured in big embryo culture medium. The small embryo is firstly cultured in small embryo culture medium and then cultured in basal medium. Small embryo culture medium has a higher sugar concentration, a higher osmotic pressure, richer kinds of amino acids, higher vitamin contents and contains trace of growth regulation factors with the germinating and seedling rate of small embryo being over 75%. By low-temperature vernalization, isolated cultured tissue culture seedlings are directly carried out chromosome doubling andplanting with the doubling treatment efficiency being over 89%. The method provided by the invention is adopted to improve seedling rate of haploid embryo and survival rate and success rate of chromosome doubling, simplify wheat breeding program, increase breeding efficiency and shorten breeding cycle, and has apparent effects on accelerating cultivation of fine varieties.
Owner:DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI

Corn planting method

The invention discloses a corn planting method. The corn planting method comprises the following steps of: soaking seeds: treating seeds in a mixed seed soaking solution consisting of 50-100 parts by weight of garlic juice, 10-20 parts by weight of ethanol and 40-80 parts by weight of water; carrying out fertilization application treatment: before sowing, applying a base fertilizer to a corn planting region; sowing: sowing the corn seeds with the mixed seed soaking solution in the corn planting region which is applied with the base fertilizer; carrying out light treatment: sowing the seeds into soil, respectively carrying out light treatment on corn plants at a three-leaf stage, a heading stage, a flowering and milking stage and a dough stage of corn growth, wherein the specific process of the light treatment is as follows: irradiating the corn plants for 4-5 hours with yellow light with light intensity of 3000-4000 1x after a sunset per day, each period lasting for 10-15 days; and carrying out growth regulation treatment: carrying out growth regulation treatment on the corn plants at the later stage of the heading stage, and spraying a mixed solution of jasmonic acid and a leaf potassium fertilizer to the plants every 2-3 days.
Owner:HENAN FENGTIAN SEEDS CO LTD

Microbial pesticide preparation for plant protection and growth regulation

The invention discloses a microbial pesticide preparation for plant protection and growth adjustment, which comprises 0.5 to 5 percent of Wuyi-bacterium spore powder, 5 to 25 percent of choline chloride, 10 to 30 percent of light rare earth, 5 to 20 percent of methionine, 1 to 8 percent of zinc sulfate, 0.3 to 3 percent of cupric sulfate, 1 to 5 percent of boric acid, 0.05 to 0.5 percent of vitamin B, 0.05 to 0.5 percent of vitamin C, and filler kaolin allowance. The invention has the advantages as follows: Wuyi biocontrol bacterium spores are taken as a main body, and meanwhile organic acidssuch as salicylic acid without phytotoxicity, and other components facilitating the plant degeneration resistance and growth promotion, such as choline chloride, trimethyl glycine, light tombarthite,amino acid and the like are matched up, the microbial pesticide preparation for plant protection and growth adjustment has obvious disease preventing, disease resisting, and degeneration resisting effects, improves crop yield, enhances the quality of crop production, has an obvious yield-increasing effect, can keep the yield to be improved by more than 10 to 15 percent, has a durable effect, is stable in resisting effect, low in cost and simple in processing technique, and has no pollution from waste material.
Owner:潍坊万胜生物农药有限公司

Special apparatus for correcting scoliosis deformity in growth period

InactiveCN101828953APlay the effect of automatic extensionAvoid surgeryInternal osteosythesisLongitudinal growthMedicine
The invention discloses a special apparatus for correcting scoliosis deformity in a growth period, which consists of a growth regulation bar, a sliding vertebral pedicle bolt and a common vertebral pedicle bolt. The special apparatus has the function of automatically sliding to the far end along with the growth of a vertebral column, does not affect the longitudinal growth of the vertebral column, prevents a sick child from suffering from pain of repeated regulation operation, and further improves the curative effect of surgical posterior correction of the scoliosis in the growth period.
Owner:BEIJING CHAOYANG HOSPITAL CAPITAL MEDICAL UNIV

Method for preparing pd-zeolite compound film based on zeolite bed regulated macroporous support

The invention discloses a method for preparing Pd-zeolite composite film by regulating macro-pore carrier with a zeolite layer, belonging to the field of inorganic film preparation technique. The method is characterized in that: aiming at the problem that the quality of film preparation is influenced by the defects of coarse and unsmooth surface, large aperture, etc. of the micro-pore carrier and the shortage caused by repeated sensitization-activation adopted by traditional electroless plating, a carrier with the zeolite layer or a carrier with the zeolite layer containing palladium nucleus is formed by a zeolite growth regulation carrier, and the electroless plating is used for gaining a compact Pd film. The method of the invention has the beneficial effect that aiming at different carriers, the zeolite layer with different structure and aperture is formed by regulating the zeolite growth, thus the surface of the carrier is effectively improved, and the palladium nucleus is led in. the Pd film prepared by the method of the invention is thin, has good compactness, is firmly boned to the carrier and not easy to fall off, and has simple process, low cost and strong practicability.
Owner:DALIAN UNIV OF TECH

Special base fertilizer applicable to greenhouse tomato seedling culture

The invention provides a special base fertilizer applicable to greenhouse tomato seedling culture. The seedling culture special fertilizer combining an inorganic nutrient, an organic component, a synergistic component, a trace element and an improver is prepared according to the growth fertilizer requirement rule in tomato greenhouse seedling culture, the effects of optimization and yield increase are realized in the growth regulation of tomato seedlings, and the cultivation period is shortened; by applying the base fertilizer, the transplanted seedlings can be strengthened so that the plant height, stem thickness, true leaf number and blade number of the tomato reach the good transplanting conditions; meanwhile, the overground and underground parts develop in balance, the root system is developed with white color and multiple fibrous roots, and the root ball is firm and not loose. The preparation and development of the fertilizer are of promotion value to the cultivation technology of the regional processing tomatoes.
Owner:XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI

LMP and Regulation of Tissue Growth

Novel methods are provided for changing cell phenotype, comprising a method of changing a phenotype of a target cell comprising: increasing an amount of an amino acid sequence in a source cell, wherein the source cell is located within a volume of a media and wherein the amino acid sequence is selected from the group consisting of LMP-1 protein, an LMP-2 protein, an LMP-3 protein, an LMP-1s protein, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7 or combination thereof; collecting at least a portion of the volume of the media; and contacting the target cell with at least the portion of the media.
Owner:WARSAW ORTHOPEDIC INC

Glyphosate weeding composition containing brassinolide compound

The invention provides a glyphosate weeding composition containing a brassinolide compound. Effective ingredients of the glyphosate weeding composition include a glyphosate compound and a brassinolide compound. In the glyphosate weeding composition, the glyphosate compound is glyphosate acid or a herbicidal active derivative thereof, and the brassinolide compound is one or more of 24-hybrid epibrassinolide, 24-epibrassinolide, 28-epihomobrassinolide, 28-homobrassinolide and other brassinolide compounds. The mass ratio of glyphosate to brassinolide is 100:(0.01*10<-3>-10*10<-3>). The glyphosate weeding composition containing the brassinolide compound has the advantages that brassinolide and a glyphosate product are compounded, and the uptake and translocation effects of glyphosate in stems and leaves and the growth regulation effect of brassinolide are utilized and combined, so that the weeding composition has obvious synergistic effects, the initial weeding effect time is shortened for 2-4 days, the usage amount of a herbicide is reduced by 20-50%, and control effects on some noxious weeds are better. The weeding composition provided by the invention has the advantages of broad spectrum, high efficiency, low toxicity, little pollution, high effect taking speed, low cost and convenience in application.
Owner:安阳全丰生物科技有限公司

Composition containing humic acid and chitosan oligosaccharide/chitosan

The invention belongs to the field of agricultural products, and relates to a composition containing humic acid and chitosan oligosaccharide / chitosan, and application thereof to growth regulation and disease prevention. In the composition, the weight ratio of humic acid to chitosan oligosaccharide / chitosan is 1:10-10:1, plants are processed by employing the composition for performing at least one pesticide application manner such as spraying, seed dressing, irrigation at root, the composition with the concentration same to or different from that of the first applied composition is applied for 0-3 times every other 10-20 d, and the application dosage of the composition is 5-100 ppm, and the composition is capable of improving the effects of promoting crop growth and preventing diseases.
Owner:HAINAN ZHENGYE ZHONGNONG HIGH TECH

Growth regulator for promoting advanced budding of daylilies

The invention discloses a growth regulator for promoting the advanced budding of daylilies, relating to the fields of growth regulation and control of plants. The growth regulator mainly contains melatonin, gibberellin, polyaspartic acid, sodium nitrophenolate, potassium dihydrogen phosphate, urea, zinc sulfate, Tween 20, ethanol and clean water. The growth regulator is integrated with the functions of plant growth regulating substances and mineral elements and can be used for realizing regulation and control from two aspects of plant hormone physiology and mineral nutrition, so that the budding time of the daylilies can be advanced, and the yield can be increased. The growth regulator is good in quality stability and has remarkable application effects; and by spraying the growth regulator, the budding time of the daylilies can be advanced by 18-24 days, the yield can be increased by above 5.0%, and partial quality is remarkably improved.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Concentrated, water-soluble, granular plant growth regulator formulation and methods for use of same

A water-soluble granular composition including at least 40% of at least one plant growth regulator, at least one binder, at least one disaccharide and at least one surfactant; as well as methods for making and using the composition are disclosed. The water-soluble granular composition advantageously improves preparation of a solid plant growth regulator formulation for spray application, as such composition swiftly dissolves, is easily metered for application, can be more highly concentrated and is dust-free. A presently preferred water-soluble granular composition includes at least 40% of at least one gibberellin as the plant growth regulator.
Owner:VALENT BIOSCIENCES CORP

Method for preparing microemulsion by mixing pesticide, liquid fertilizer and bioemulsifier

The invention discloses a method for preparing microemulsion by mixing a pesticide, a liquid fertilizer and bioemulsifier, which relates to a preparation method of microemulsion combining medicines and fertilizers, and mainly aims at solving the technical problems that microemulsion prepared by the existing method is poor in ageing stability, adopts a surfactant which causes phytotoxicity on plants, and is large in dosage. The method comprises the following steps of: weighing raw materials; preparing a uniform and transparent solution from the weighed raw materials; preparing a uniform and mixedly-dissolved solution; and mixing the pesticide, the liquid fertilizer and the bioemulsifier to prepare the microemulsion. The microemulsion prepared by the method overcomes the defect that the microemulsion is sensitive to temperatures and pH values, is good in aging stability, can be applied to disinsection, mite prevention and sterilization of the plants, and can promote growth regulation of the plants and supply nutrition and microelements to the plants.
Owner:HEILONGJIANG HETIANFENGZE AGRI SCI ANDTECH DEV

Combinations of growth-and hormone-regulating factors for the treatment of neoplasia

InactiveUS20060193853A1Reducing tumor massSynergic effectPeptide/protein ingredientsAntibody ingredientsAbnormal tissue growthTumor response
The invention relates to the field of immunology, endocrinology and oncology and, in particular, the generation of a combined immune response to determined growth factors and hormones. A synergic effect, outlined herein, between growth regulating factors (EGF, TGF and VEGF) and hormones involved in the sexual hormones release cascade or reproduction (GnRH, LH, FSH) stimulates the anti-tumor response which is expressed as a reduction in the tumor mass and an increase in the survival time.
Owner:CENT DE ING GENETICA & BIOTECNOLOGIA

Non-mammalian GnRH analogs and uses thereof in tumor cell growth regulation and cancer therapy

Specially designed non-mammalian GnRH analogs resistant to degradation by the tumor tissue enzymes, post-proline peptidases as well as endopeptidases, are disclosed. The GnRH analogs are further defined as analogs of chicken II GnRH, salmon GnRH, or herring GnRH, but can include any non-mammalian GnRH analog with similar amino acid structure. These non-mammalian analogs incorporate D-arginine, D-leucine, D-tBu-Serine or D-Trp or other similar amino acids at position 6 and ethylamide or aza-Gly-amide or similar amides at position 10. These analogs demonstrate preferential binding to tumor cell GnRH receptors that is greater relative to the binding of the mammalian analogs to the tumor cell GnRH receptor. These non-mammalian GnRH analogs may be used in pharmaceutical preparations, and it specifically in various treatments as an anti-tumor, anti-proliferation, anti-metastatic and / or an apoptotic agent. The non-mammalian GnRH analogs are also provided in pharmaceutical preparations that may be used clinically for tumor regression when used in very low doses and administered in pulsatile fashion.
Owner:SILER KHODR THERESA +1

Composition for growth regulation of underground rhizome type traditional Chinese medicinal materials

The invention relates to composition for growth regulation of underground rhizome type traditional Chinese medicinal materials. The composition comprises effective components as follows: prohexadionecalcium, diethyl aminoethyl hexanoate, S-ABA and naphthylacetic acid; the composition further comprises auxiliary materials. The composition is mainly used for controlling vegetative growth of the traditional Chinese medicinal materials and has the advantages of promoting reproductive growth, improving photosynthetic efficiency, increasing chlorophyll content, promoting root growth, enhancing water and fertilizer absorption of plants and regulating balance of moisture in the plants, so that stress resistance of the plants is improved, product quality is improved, and yield and revenue are increased.
Owner:鹤壁全丰生物科技有限公司

Method for preparing oligomeric acid potassium or oligomeric acid ammonium and application thereof

The invention relates to a method for preparing oligomeric acid potassium or oligomeric acid ammonium, in particular to a method for preparing the oligomeric acid potassium or the oligomeric acid ammonium through the biological decomposition and the oxidation of dextran. The method decomposes the dextran into oligosaccharide through glucosidases and then produces the oligomeric acid potassium or oligomeric acid ammonium through oxidation and salt-forming reaction. The oligomeric acid potassium or oligomeric acid ammonium produced by the method is a novel substance, is not easy to be decomposed in natural state and has strong stability, thus the oligomeric acid potassium or the oligomeric acid ammonium has strong function in growth regulation. The method combines a biological engineering technique and a fine chemical industrial technique, has simple operation, and is suitable for large-scale industrial production.
Owner:王士奎

Vegetation-type ecological concrete micro-plant cultivation method

The invention discloses a vegetation-type ecological concrete micro-plant cultivation method. The method is characterized by including the following steps: step 1, uniformly pasting slurry on vegetation-type ecological concrete; step 2, collecting rock moss in autumn, removing impurities, adding water to mash the moss into juice, smearing the juice on the vegetation-type ecological concrete with the slurry, sprinkling water on the concrete to enable the concrete to maintain moist, and allowing the moss to grow and form a moss cluster of a cluster-cushion-shaped structure; step 3, scattering seeds in the moss cluster formed in step 2, continuing sprinkling water on the concrete to enable the same to maintain moist, when the seeds germinate and grow to the plant height of 10-15cm, spraying growth regulator to control the plant height to be within 25cm, and hereafter spraying the growth regulator for one time in each growth season to maintain the plant height to be within 25cm.
Owner:INST OF GEOCHEM CHINESE ACADEMY OF SCI +1

Cotton physiological directional agent

The present invention relates to a cotton production special-purpose cotton physiological orientating agent integrating the actions of plant nutrient, synergistic action, growth regulation and controlling cotton disease and pests into one body, and said physiological orientating agent is formed from nutrient portion, energy power portion, attachment agent, regulating and controlling agent, balancing agent and treatment agent, and respectively has four physiological orientating agents for cotton primary bud stage, primary-bloom stage, full-bloom stage and open boll stage. Said invention also provides its application method, it can raise yield of cotton by 50-100%.
Owner:HUANGHE RIVER EFFICIENT AGRI INST HOUMA ECONOMIC & TEHCNOLOGICAL DEV ZONE

Special balanced-nutrient fertilizer for oil tea whole growth period

The invention discloses a special balanced-nutrient fertilizer for the oil tea whole growth period. The fertilizer is prepared from the following raw materials in parts by weight: 18-22 parts of potassium sulfate magnesium fertilizer, 10-25 parts of ammonia water, 15-35 parts of calcium nitrate, 0.5-1 part of organobentonite, 1.5-2.5 parts of fly ash, 0.5-1 part of zinc chloride, 3-7 parts of attapulgite clay, 4-8 parts of dolomite powder, 2-5 parts of kaolin, 1.5-2.5 parts of corn straw, 6-12 parts of pig viscera, 4-12 parts of coating agent, 15-35 parts of bone slag, 10-20 parts of fermented peanut pulp, 0.4-1 part of composite bacterium, 1.5-2.5 parts of clay and 1.5-2.5 parts of fatty acid monoglyceride. The fertilizer can be matched with the oil tea growth regulation nutrient release rate, has favorable slow-release effects, is suitable for the demands of oil tea for the nutrients in the whole growth period, can improve the soil structure and soil permeability, effectively improves the coating hardness and toughness, and can not be easily dispersed or easily crack under the condition of certain humidity.
Owner:宿松县洪家龙种养专业合作社

Cultivation method capable of improving quality of narcissus bulbs

The invention belongs to the technical field of narcissus cultivation, and particularly relates to a cultivation method capable of improving the quality of narcissus bulbs. By changing the seeding mode in cooperation with the adoption of the growth regulation technology, the relation between the number of narcissus bulbs per unit area and the circumference diameter of main bulbs, the growth condition of lateral bulbs and the apparent bulb shape is effectively coordinated, and thus the purposes of high quality and high efficiency are achieved. By means of the method, the defects that in current production, narcissus grows vigorously in the earlier stage, the plant gets fatigued and weak in the middle stage, leaves are presenile in the later stage, and harvested bulbs are not plump are overcome, the stress resistance of narcissus plants can be improved, the withering of narcissus plants can be delayed, the growing period can be prolonged, the nutrient accumulation of bulbs is facilitated, and the proportion of special-grade and first-grade bulbs can be effectively increased.
Owner:FUJIAN ACADEMY OF AGRI SCI SUBTROPICAL AGRI RES INST

miRNA396 AND GROWTH REGULATING FACTORS FOR CYST NEMATODE TOLERANCE IN PLANTS

The present invention presents methods to alter the genetic composition of crop plants susceptible to nematode infection to improve tolerance to the same. Methods and compositions for modulating key pathways involved in the syncytial event of nematode infection and for preventing the cascade of differential gene expression caused by the same as disclosed. Applicants have found that the microRNA miR396 acts as a master switch of syncytial gene expression changes in plants after infection, and further that miR396 and certain growth regulating transcription factors (GRF) are connected through feedback interaction in syncytium initiation and maintenance.
Owner:IOWA STATE UNIV RES FOUND

Efficient watermelon genetic transformation system and application

The invention relates to the field of plant genetic engineering. Specifically, the invention relates to an efficient watermelon genetic transformation system and application. Growth regulation genes such as AtGRF5, TaGRF4, OsGIF1, ZmWUS and ZmBBM are included in watermelon genetic transformation. It is found for the first time that expression of AtGRF5, TaGRF4, OsGIF1, ZmWUS or ZmBBM genes in the watermelon transformation and / or regeneration process can promote the genetic transformation efficiency of watermelon crops, AtGRF5 can significantly improve the genetic transformation efficiency of watermelons by about 80 times, and precious gene resources are provided for genetic breeding. The invention further provides a method for using a fluorescent protein DsRed2 as a genetic transformation screening marker, and genetic transformation screening operation is simplified. When the system is expressed and used in watermelons, the genetic transformation breeding efficiency of the watermelons can be effectively improved, and the breeding cost is reduced.
Owner:PEKING UNIV INST OF ADVANCED AGRI SCI
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