163results about How to "Reduced germination" patented technology

The invention relates to 6-(alkylbenzylamino)purine derivatives of the general formula I for use as cytokinin receptor antagonists, wherein R1 is selected from the group comprising hydroxyl, amino, nitro, thio and alkyl group, and R2 denotes one to four alkyl groups. The invention also relates to preparations containing these derivatives.

The invention discloses aryl formyl amino cyclopropanecarboxylic acid serving as a novel plant growth regulator. The compound provided by the invention is shown as a general formula I, wherein in the formula I, R may be R1 or R2; R1 may be phenyl or a benzene ring containing a substituent group; R2 may be pyridyl or a pyridine ring containing a substituent group; and the substituent groups in the benzene ring containing the substituent group or the pyridine ring containing the substituent group may be one or any two of halogen, NO2, alkyl and alkoxy. Experiments prove that the aryl formyl amino cyclopropanecarboxylic acid compound synthesized by the invention has the plant growth regulation activity of inhibiting seed germination by the measurement on the germination activity of wheat seeds.

The present invention relates to coated plant seeds, comprising seeds coated with at least one fixing agent comprising an asparatic acid derivative, and with at least one plant nutrient. The present invention is further directed to a method for coating seeds, and a coating composition.

The invention discloses a Tilia miqueliana seedling raising method, which includes seed collection, drying in the shade, soaking, multi-substrate variable temperature stratification and transplanting. Seedlings of Tilia miqueliana raised by the method break through dormancy in about 50 days, are high in survival rate and emergence percentage, and have developed roots.

The chestnut preservative contains plant growth regulator, such as MH, NAA and 2, 4-D, bactericide, such as DEC and TBZ, and filming agent, such as MS. The chestnut preservative has the functions of preventing rot, keeping freshness, preventing germination and preventing water loss. Chestnut after processed with the chestnut preservative may be stored at normal temperature for over 5 months and cold stored for over 7 months.

The invention relates to the field of plant tissue culture, in particular to a method for quickly germinating phytolacca americana seeds and application of the method to aseptic seedling culture. The method comprises: soaking the phytolacca americana seeds into a concentrated sulfuric acid for a certain period, damaging the structure of phytolacca americana seed coats, breaking the sleep state of the seeds, and making the seeds be quickly subjected to imbibition and enter the germination state; simultaneously, utilizing the sterilization function of the concentrated sulfuric acid to perform sterilization treatment on the phytolacca americana seeds; subsequently, inoculating the aseptic phytolacca americana seeds on a culture medium selected by an experiment, adjusting the conditions such as temperature and illumination, and making the phytolacca americana seeds germinate quickly; and finally obtaining aseptic phytolacca americana seedlings. The method can quickly break through the sleep state of the phytolacca americana seeds, and greatly shorten the germination time and the seedling time of the phytolacca americana seeds. The invention provides a method for culturing the aseptic phytolacca americana seedlings for laboratory investigation.

The invention discloses a method for lowering a weld seam cracking risk in the heat treatment process after welding of a large inserting plate of an extra-high pressure container, and relates to the technical field of pressure container welding. The method includes the following steps of increasing the width of a weld seam cover; grinding the weld seam cover; determining a heating region, and arranging heating sheets and heat preservation cotton; and carrying out post-welding heat treatment by adopting a six-section three-times symmetric heating mode. The method has the beneficial effects thatby increasing the width of the weld seam cover and combining a mechanical grinding method, the weld seam cover and a base material are made to in smooth transition, stress concentration and tensile welding residual stress at weld seams and weld toes of the large inserting plate of the extra-high pressure container are remarkably lowered, the six-section three-times symmetric heating mode is adopted for post-welding heat treatment, large discordant deformation in the post-welding heat treatment process is avoided, deformation coordination on two sides of the weld seams is improved, and the weld seam cracking risk is effectively lowered.

The invention relates to a facility grape flowering branch grafting method, which is characterized in that: 1) storing annual branches and tendrils, serving as breeding branches, of high-quality table grape varieties growing in open field soundly in an environment at -5 to 5 DEG C; and 2), grafting the tender single-bud breeding braches stored in the last year onto stocks, which are annual braches of grape vine growing for more than 2 years, in a semi-hardwood period by using a technique of grafting tender braches on hard branches and by cleft graft. In the invention, under a condition of facility cultivation of grapes, the problem that some varieties cannot deliver high yield continuously in the facility grape cultivation is solved by grape flower bud grafting. Thus, the grape vines can fruit in the year the grafted grape vines are grafted, the economic benefit of the facility grapes is increased, and the situation that the cultivated grape vines fruit in next year and are cut in the third year due to low yield in facility grape cultivation is changed.

The Chinese chestnut preserving process includes the following steps: picking chestnut, piling in reasonable mode, threshing and eliminating some water, soaking with pretreating agent, treating with preservative, improved sand preservation or film tent storage, and management in preserving period. To Chinese chestnut with pest, some fumigating step to killing pest in added before threshing and water elimianting step. The said process is simple, practical and suitable for small scale storage without using refrigerating equipment, and can reduce cross infection, increase the disease resistance of Chinese chestnut, reduce water loss during storage and prolong the preserving period of Chinese chestnut.

The invention discloses a grafting method for model arabidopsis thaliana.The method comprises the following steps that an arabidopsis thaliana plant with the seedling age of 6-8 days, thick and strong hypocotyl explant, consistent growth vigour and a main leaf emerging newly is used for grafting; stock and scion materials used for grafting are placed in the middle of 1.2% sepharose gel, the hypocotyl explant is transversely cut, and it is ensured that the hypocotyl explant part of the scion material is short and the hypocotyl explant part of the stock material is long; material notches are in tight contact on the sepharose gel, a 1/2MS+3% saccharose solid culture medium with the area larger than the stock root area is cut to cover the stock root, and a grafting body is formed; the grafting body is placed in the environment under the temperature of 21 DEG C to be vertically cultured for 7 days; after grafting notches are healed, the grafting body is transferred into a water culture device with 1/4MS as a liquid culture medium to be cultured.The problems that operation is difficult, notches are not round or normal, scion side roots are frequently produced, and the grafting survival rate is low due to the fact that arabidopsis thaliana plants are thin and weak are solved.

The present invention relates to mutant gibberellin 2-oxidase (GA2ox) genes and uses thereof. In particular, the effective mutations disclosed herein can reduce GA2ox enzymatic activity to different extents, leading to various degrees of GA deficient yet beneficial agronomic traits in transgenic plants.

The invention discloses a plant seed yield increase processing device. The device comprises a processing tube and an ultrasonic functional unit arranged on the tube wall of the processing tube. A conveying screw is arranged in the processing tube, and one end of the conveying screw is connected with a driving motor. A feed inlet and a discharge opening are formed in the processing tube. The invention further discloses a plant seed yield increase processing system which at least comprises two plant seed yield increase processing devices. The discharge opening of the first plant seed yield increase processing device conveys processed seeds into the feed inlet of the second plant seed yield increase processing device. The device and the system have the advantages that the seeds can be sufficiently and evenly subjected to ultrasonic processing, the processing effect is effectively improved, and the yield can be increased by 10% after the seeds are processed by equipment for about 1 min; the conveying speed of screw conveying can be flexibly controlled, the blocking phenomenon is avoided, spiral blades on the screw can turn the seeds in the conveying process, and ultrasound irradiation is more uniform; a modular structure is basically obtained, installation is flexible, and large-scale production can be conveniently achieved.

The invention discloses a method for cultivating edible fungi by means of wood blocks. A matrix of a traditional strain culture medium is changed, the matrix of strains and the matrix of the wood blocks are the same and can be fused into a whole, and harmonious coexistence can be achieved; the strains and a strain cover are combined into a whole and all communicated with xylon of the wood blocks, and the disengagement problem of a traditional strain cover is solved thoroughly. According to the technical scheme, the method for cultivating the edible fungi by means of the wood blocks comprises the following steps of wood block preparation, wherein timber is cut into long wood blocks for use, according to differences of cultivated varieties, the tree varieties of pine and Chinese fir are selected for ganoderma tsugae, and broadleaf wood is selected for other varieties; wood block strain making; wood block punching, wherein punching is conducted through a mechanical punching machine or an electric drill or a handmade hammer, and the hole depth, hole diameter, line spacing and spacing are determined according to the cultivated varieties and tree varieties; strain inoculation, wherein wood block strains are embedded in wood block holes, and tamping is conducted with a hammer till no gap exists between the hole walls and the strain blocks; spawn running, wherein a spawn running way is determined according to the technological requirements of different varieties of cultivated edible and medical fungi, differences of the tree species and the specific circumstances of sites; fruiting management.

The invention discloses a high-yield and fruit cracking prevention cultivation method for red dates, and belongs to the technical field of fruit tree cultivation. The method includes the steps of firstly, selecting an appropriate block; secondly, conducting compact planting and dwarfing; thirdly, grafting good varieties; fourthly, conducting vernalization cultivation on date trees; fifthly, managing water and fertilizer; sixthly, conducting cracking prevention management at the fruiting stage; seventhly, manually harvesting fruits. According to the method, no greenhouses need to be erected, bagging does not need to be conducted, and the method has the advantages of being low in cost and easy to operate; the problem that due to the fact that illumination insufficiency is caused by the greenhouses and bagging, quality of the red dates is reduced is solved.

The invention belongs to the technical field of parasitic weed control, and particularly discloses an application of Streptomyces roche to control of parasitic weeds. The Streptomyces roche D74 is collected at China Center for Type Culture Collection on March 14th, 2016, and the collection number is CCTCC M 2016123. The Streptomyces roche can be used for remarkably inhibiting orobanche aegyptiaca seed germination.

The invention discloses a method for grafting big Chinese evergreenchinkapin trees. The method is characterized by comprising the steps of (1) truncation of the big chestnut trees; (2) cultivation ofnew shoots; (3) scion preparation; (4) stock treatment; (5) grafting; (6) post-grafting management; the survival rate of grafting can be as high as 95% through the above-mentioned method, the graftingefficiency is greatly improved, a large number of thick branch groups are grown in the same year when the grafting is performed to form a full crown, and a large number of fruits are born in the second year. The problems in the prior art of low survival rate of the grafting of the Chinese evergreenchinkapin trees, the need for many years of multiple grafting, the complex grafting process, the lowefficiency, the time-consuming and labor-consuming management after grafting and the slow growth and recovery of the tree body are effectively solved.

The invention discloses a method for improving the quality and increasing the number of collard seed production. The method comprises the steps of sowing, seedling cultivating, rational fertilizing, field planting, managing, clipping, trimming, and harvesting according to the maturity of branches and seed pods. By the way of cutting off tops of newly flowering branches each time, the number of small seeds is reduced, nutrition loss is reduced, nutrition for plant branches blossoming and having seeds can be more sufficient, and thousand seed weight of the seeds can be increased; moreover, plant lodging caused after fruit setting is effectively reduced, so that the yield and the germination rate are increased. Harvesting is carried out in time by observing the maturity of the branches and the seed pods, the seeds mature after being hung for a short term, the postharvest humidity is reduced, the germination condition is destroyed, and germination in the seed pods can be effectively reduced. The method is simple, effective, and capable of solving the problems of collard seed production, and achieves the purposes of increasing the yield, improving the seed quality and increasing benefits.

The invention discloses a preparation method of a laminar carbon nano tube enhanced copper-based composite material and belongs to the field of preparation of composite materials. The preparation method comprises the following steps: preparing an electroplating solution first, then putting a copper plate as an anode and a titanium plate as a cathode in an electroplating groove, connecting a powersupply and introducing a current to electroplate; stirring the electroplating solution continuously in the electroplating process and regulating the content of carbon nano tubes in a film by changingthe current density; taking out the titanium plate after electroplating for a while for vacuum drying and then taking the composite film down from the titanium plate; tailoring the composite film taken down and overlaying the tailored film and putting the film in a hydraulic machine to be pre-pressed; and preparing a bulk composite material by the composite film through a sintering process after pre-pressing to obtain the laminar carbon nano tube enhanced copper-based composite material. By adopting a composite electrodepositing method, distribution of carbon nano tubes in a copper matrix is regulated by changing the current density in the electroplating process, so that the composite material obtains good comprehensive mechanical properties.

The invention discloses an oil tea seedling raising method, comprising the following steps: (1) preparing oil tea seeds; (2) mixing the oil tea seeds and fine sand uniformly, filling a mixture into cloth bags, and placing the cloth bags at a temperature of 45 DEG C for 2 days, wherein each cloth bag contains 5-8kg mixture of the oil tea seeds and the fine sand, volume ratio of the oil tea seeds to the fine sand is 1 to 1, an aqueous gibberellin solution with the mass fraction of 1% is included in the fine sand, and particle size of the fine sand is 0.1cm; and (3) spreading the oil tea seeds and the fine sand after being treated by the step (2) onto a seedling bed, covering a layer of 0.5cm-thick sawdust, and spraying an aqueous carbendazim solution with the mass fraction of 1%, wherein the sawdust is used after being sterilized in steam at a temperature of 120 DEG C and cooled. The oil tea seedling raising method disclosed by the invention has the advantages of quick sprouting, high germination rate, short seedling raising period and high survival rate.

A method for designing and implementing a system for subsurface drip irrigation dispersal of sodic water from a coal bed seam, the method comprising calculating a land surface area below which the sodic water dispersal system is to be placed, determining a concentration of total dissolved solids contained in the sodic water and in the aquifer ground water beneath the land surface area, developing a sodic water dispersal system configuration and dispersal sequence that limits the increase in the concentration of total dissolved solids in the aquifer ground water to no more than five hundred percent. Installing the sodic water dispersal system in the land area in accordance with the developed system configuration and pumping sodic water from the coal bed into the configured dispersal system in accordance with the developed dispersal sequence.