89 results about "Ethephon" patented technology

The invention relates to the technical field of agricultural product preservation, and particularly discloses an ethylene-gas-based accurate mango ripening method which specifically comprises the following steps: cleaning and sorting, ultrasonic degumming, bacteriostasis and preservation, packaging, ripening treatment and delivery from a warehouse. Wherein the cleanliness of the surfaces of the mangoes is improved by adopting a degumming agent in cooperation with ultrasonic waves, and gummosis is prevented from damaging the mangoes while the gummosis is more sensitive to ethylene gas for subsequent ripening; the plasma citric acid solution is used for treating mango to activate cells in vivo, so that the respiration in the mango ripening process is enhanced, and the ethylene peak is advanced to promote the ripening process; the terahertz electromagnetic wave technology can enable cells to form an ordered state, so that the consistency of cells in different parts of the fruits in response to ethylene ripening acceleration is improved, and uniform ripening of mangoes is promoted; according to the method, gas ethylene is used for ripening treatment, the food safety risk of traditional ethephon residues can be reduced, and the ripening commodity rate is increased.

The invention relates to the technical field of pineapple planting, in particular to a management and control method for reducing malformed fruits caused by non-development of pineapple kernels. The management and control method comprises the steps of regulating and controlling nutrition before a flowering period, optimizing a microenvironment in a flowering period, strengthening management in a young fruit period and comprehensively preventing and controlling diseases and insect pests. The operation of regulating and controlling the nutrition before the flowering stage comprises the following steps: supplying a water-dispersible slow-release fertilizer by adopting a drip irrigation system from a seedling stage to a flowering accelerating stage; the mass ratio of nitrogen to phosphorus to potassium in the water dispersible slow-release fertilizer is 1: (1.1-1.3): (1.4-1.6); the operation of optimizing the microenvironment in the flower forcing period comprises the following steps: forcing flowers in cloudy days at the temperature of 18-25 DEG C or at dusk; after the inflorescence develops, a mixed solution of ethephon and gibberellic acid is adopted for core filling; the operation of strengthening young fruit stage management comprises the following steps: in a young fruit stage, spraying a mixed aqueous solution of sugar alcohol calcium and monopotassium phosphate to leaf surfaces; the operation of comprehensively preventing and controlling diseases and insect pests comprises the following steps: covering with breathable insect-preventing fruit bags 20 days after flowers wither, and releasing natural enemies to control the cardinal number of pests.

The present application relates to a kind of fluoro-eth composition, plant growth regulator and its application, belong to the technical field of pesticide.The present application provides a kind of fluoro-eth composition, including flumetralin and ethephon, and the mass ratio of flumetralin and ethephon is flumetralin:ethephon=1:(0.05-20).The present application creatively combines control tip drug flumetralin and kill tip drug ethephon together to prepare fluoro-eth composition, and the compound preparation of flumetralin and ethephon can be used to control and inhibit litchi winter shoot, and its efficacy is mild, and the safe period is longer, and the safety is extremely high, compared with the conventional chemical control drug used alone, the control effect on litchi winter shoot is also more comprehensive and excellent, not only can control the germination of winter shoot, is conducive to the accumulation of tree nutrients, promotes flower bud differentiation, but also can have obvious control or kill shoot effect on the growth of litchi winter shoot that just sprouts certain length, so as to reduce the consumption of tree nutrients, lay a solid foundation for the stable yield of second year.

The invention discloses a banana spraying and ripening device and a using method thereof. The banana spraying and ripening device comprises a banana processing cabin, a partition plate is fixedly arranged in the banana processing cabin, the banana processing cabin is divided into a banana pretreatment cabin and a banana ripening cabin through the partition plate, a communication door is arranged on the partition plate, and a sealing door is rotationally installed on the communication door through a hinge; the spraying mechanism and the air drying mechanism are both arranged in the banana pretreatment cabin; and the banana spraying processing adjusting mechanism is mounted on the inner wall of the top of the banana pretreatment cabin. According to the device, accurate release of ethephon in banana stem / fruit body sensitive areas is realized through a microcapsule suspension spraying + HIFU ultrasonic targeted detonation technology, a four-station rotating bracket (90-degree switching) is linked with spraying, air drying and a transfer module, a three-axis positioning system is matched, banana treatment-ripening full-automatic closed loop is realized, the state of bananas is monitored in real time by a multispectral sensor, and the quality of bananas is ensured. And the ultrasonic power and the pulse duration are dynamically adjusted, so that the maturity consistency is ensured.

The present invention provides an integrated regulator and a regulation method for the strip intercropping mode of soybean and corn, belonging to the technical field of high-yield cultivation of crops. The regulator includes regulator I and regulator II which are independently packaged; regulator I uses water as a solvent and includes components with the following final concentrations: 150-350 mg / L of ethephon, 30-50 mg / L of uniconazole, 10-50 mg / L of diethyl aminoethyl hexanoate, and 1-3 mL / L of surfactant; regulator II uses water as a solvent and includes components with the following final concentrations: 50-60 mg / L of uniconazole and 1-3 mL / L of surfactant. The regulator of the present invention is universal for soybeans and corns, realizes the integrated chemical control of soybeans and corns, combines the adjustment of spraying time, reduces the chemical control times and labor costs, and achieves the effects of controlling plant growth, preventing lodging and increasing yield.

The invention relates to a composition and a medicament for inhibiting sprouting of wheat ears and application of the composition and the medicament, and belongs to the technical field of plant growth regulators. Experiments prove that when prohexadione calcium or ethephon is combined with S-abscisic acid for use, the effect of the composition is obviously superior to that of single use of S-abscisic acid, and the drug effect lasts for a longer time. It is proved for the first time that a synergistic effect exists between prohexadione calcium or ethephon and S-abscisic acid, the drug effect can be better achieved, and meanwhile the use amount of S-abscisic acid is remarkably reduced. The composition for inhibiting wheat pre-harvest germination provided by the invention effectively overcomes the defects of unstable effect, pesticide residue and the like in the prior art, can improve the effect of singly using S-abscisic acid, and achieves the purposes of controlling pre-harvest germination and not influencing wheat yield.

The invention discloses an interplanting circulation system for improving nut forest soil by using cassava straws, and relates to the technical field of agricultural resource utilization and soil improvement, the system is constructed into six modules: a space configuration module realizes vertical layered planting of cassava and nuts; the time configuration module regulates and controls the straw decomposition period by spraying ethephon 10 days before cassava harvesting, and the straw decomposition period is synchronous with the nut fertilizer requirement period; the decomposition regulation and control module is coupled with a charcoal carrier by adopting a complex microbial inoculant, so that slow release of nitrogen and quick release of potassium are realized; the water and fertilizer cooperation module stores water through a furrow structure and conveys water through a straw water absorption layer in a dry season; the mechanical cooperation module is provided with a wheel track self-adaptive chassis and a dual-mode cutting head; the carbon sink metering module establishes a conversion rule of the straw returning amount and the carbon sink amount, organic matter of soil can be increased, the utilization rate of nitrogen can be increased, the use amount of chemical fertilizer is reduced, and therefore a soil nutrient management solution is provided for sustainable high yield of the nut forest.

The invention relates to the technical field of fruit tree cultivation management, and particularly discloses an efficient flower thinning agent for peach trees and application thereof, and the flower thinning agent comprises the following main effective components: T6P with the concentration of 250-750 mg / L and ethephon with the concentration of 50-100 mg / L. According to peach trees treated by the flower thinning agent, the fruit setting rate is controlled between 20% and 25%, the weight of a single fruit reaches 190 g or above, the SSC content exceeds 12%, the fruit hardness is kept between 6.5 kg / cm < 3 > and 7.0 kg / cm < 3 >, and the fruit quality is remarkably improved. The formula is simple in components, low in cost and suitable for large-area popularization; the influence of environmental factors is small, and the stable flower thinning effect can be kept under different weather conditions.

The invention discloses a chitosan / lysozyme amyloid protein fiber composite microneedle based on ethephon controlled release and application of the composite microneedle in on-demand ripening acceleration of harvested fruits, and belongs to the technical field of agricultural product after-harvest treatment. The composite microneedle is composed of chitosan, lysozyme amyloid protein fibers and ethephon, the mass ratio of the chitosan to the lysozyme amyloid protein fibers is 5: 5, and the ethephon loading capacity is that 131.13 [mu] L of a 40% ethephon solution is added to every 17.5 mL of a 1% chitosan solution. The microneedle can be inserted into the epidermis of picked fruits to realize on-demand slow release of ethephon and promote ripening of the fruits, meanwhile, the lysozyme amyloid protein fiber provides an antibacterial effect, the aging process of the fruits after ripening is effectively delayed, the infection rate of colletotrichum gloeosporioides is reduced, and the ethephon residue in the fruits is remarkably lower than the national limited standard. The method solves the problems of non-uniform fruit ripening, excessive softening and potential toxicity caused by a traditional ethephon ripening method, and realizes integration of batch on-demand ripening and preservation of picked fruits.

The present application belongs to the field of material and food technology, and discloses a compound grape drying accelerator, which comprises ethephon, gibberellic acid and ascorbic acid. The drying accelerator is compounded by ethephon, gibberellic acid and ascorbic acid. After the drying accelerator is applied in the preparation of raisins, the water loss rates of Muscat Hamburg and seedless red globe can reach 70% to 79%. Ethephon and gibberellic acid are hormones produced by plants, and ascorbic acid is harmless to human bodies. The drying accelerator improves the drying rate of raisins, shortens the drying time of raisins, effectively retains anthocyanins, antioxidant active substances and total phenol content in raisins, and has the effect of inhibiting the generation of pathogenic and rot-causing microorganisms. In summary, the novel compound biological drying accelerator can effectively improve the drying efficiency, better retain the nutritional components in grapes, and is safer than chemical drying accelerators.

A method is disclosed for synthesizing Ethephon-THAMs and using it as a controlled ethylene-releasing agent in potato tissue culture. The invention enables selective enhancement of shoot or root development and improves micropropagation efficiency

The invention relates to the technical field of grape cultivation, in particular to a method for delaying vitis heyneana germination, which comprises the following steps: in the first ten-day period of March, spraying a treating agent on vitis heyneana, and the treating agent comprises the following components: maleic hydrazide, ethephon, paclobutrazol, morning glory extract and tobacco extract. The method is easy to operate, low in cost, green and safe, germination of vitis quinquangularis is delayed by spraying the pesticide, high-incidence time of downy mildew is avoided in the florescence of the vitis quinquangularis, and meanwhile the growth quality of the vitis quinquangularis is effectively improved.

The utility model discloses a vehicle-mounted ethylene generating device which comprises a main body bin, an ethephon storage chamber and a sodium hydroxide storage chamber are correspondingly arranged on the upper half portion in the main body bin, and an ethylene generating bin is arranged on the lower half portion in the main body bin. The ethephon storage chamber and the sodium hydroxide storage chamber are communicated with the ethylene generation bin through connecting pipes, metering pumps are arranged on the connecting pipes, a control module is arranged on the side wall of the main body bin, an exhaust assembly is communicated with the side wall of the upper part of the ethylene generation bin, and a damping assembly is arranged on the bottom wall of the main body bin. The utility model belongs to the technical field of agricultural product transportation, and particularly relates to a vehicle-mounted ethylene generating device which is characterized in that an ethephon storage chamber, a sodium hydroxide storage chamber and an ethylene generating bin are all integrally arranged in a main body bin, and the design is compact and convenient to mount and place on a transport vehicle; by arranging the damping assembly, the bumping of the ethylene generating device caused by the operation of the transport vehicle can be reduced.

The invention provides a degradable film material with high water vapor permeability for slowly releasing a fruit ripening agent as well as a preparation method and application of the degradable film material. The preparation method comprises the following steps: dissolving chitosan in an organic acid aqueous solution, and adjusting the pH value to 1.0-5.0; the preparation method comprises the following steps: dissolving soybean protein isolate in water, treating at 80-95 DEG C for 25-30 minutes, and adjusting the pH value to 1.0-5.0; and mixing the two solutions in proportion, adding glycerol and a plant growth regulator to prepare a degradable film material solution, carrying out ultrasonic defoaming, pouring the degradable film material solution into a mold, and drying to obtain the degradable film. The controllable and slow-release soybean protein isolate-chitosan-based degradable film material is developed by using ethephon, has good biodegradability, fracture tensile property, water vapor permeation property and ultraviolet barrier property, can conveniently, efficiently and controllably release the ripening agent, avoids the residue of ethephon in fruits, and has a good application prospect in the field of fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation, fruit maturation and fruit maturation. The production place loss rate of the fruits is reduced, and the method has a good industrialization prospect in agricultural product storage and transportation.

The present invention also discloses a modified atmosphere packaging for adjusting the ripeness of post - ripening fruits, which comprises an outer composite cardboard box, a fruit contact layer, a release layer, and a packaging film; the fruit contact layer is arranged on each inner side surface of the outer composite cardboard box, the release layers are respectively arranged between the left and right side surfaces of the outer composite cardboard box and the fruit contact layer, and the packaging film wraps the outside of the outer composite cardboard box to block the gas between its inside and outside. The present invention utilizes the ethylene - releasing layer on one side in the outer composite cardboard box to slowly release ethylene to promote the ripening of raw fruits, and the 1 - MCP - releasing layer on the other side to slowly release 1 - MCP to form competitive inhibition with the ethylene released by the fruits themselves to slow down the fruit ripening. The middle is blocked by microporous films of different specifications to form a plant hormone concentration gradient, effectively enabling the fruits to ripen at different times; it solves the problem that multiple post - ripening fruits ripen simultaneously during storage at home, avoids food waste, and also provides a research basis for the preservation of other types of fruits and vegetables.

The invention provides a high-efficiency ethylene preparation method, and relates to the technical field of chemical synthesis. According to the method, ethephon ClCH2CH2PO (OH) 2 is used as an ethylene precursor, barium hydroxide Ba (OH) 2 is used as an alkaline reaction medium, ethylene is efficiently prepared through hydrolysis reaction at normal temperature, and high temperature and strong acid are not needed in the core reaction. The core innovation lies in that a'mild hydrolysis-directional gas production 'technology is adopted, the raw material ratio and reaction conditions are optimized, rapid gas production within 1 minute is realized, and the purity of ethylene is greater than or equal to 92%; the raw materials are easy to purchase, low in price and high in safety, byproducts can be recycled, and the problems that a traditional concentrated sulfuric acid dehydration method is high in corrosion risk, large in energy consumption and many in byproducts are solved. The method is easy and convenient to operate and visual in phenomenon, the gas production efficiency is improved by 60% or above compared with that of a traditional method, the cost is reduced by 50%, the ethylene property verification requirement in teaching is met, efficient preparation of small experiment scenes is also adapted, and remarkable safety, economical efficiency and practicability are achieved.

The invention provides a medicine composition for preventing and treating corn diseases and insect pests and application and a prevention and treatment method thereof, and particularly belongs to the technical field of disease and insect pest prevention and treatment. The invention provides a medicine composition for preventing and treating corn diseases and insect pests. The medicine composition comprises a first prevention and control medicine, a second prevention and control medicine, a third prevention and control medicine and a fourth prevention and control medicine, the first prevention and control drug is prepared from a macroelement water-soluble fertilizer, compound sodium nitrophenolate, emamectin benzoate and chlorantraniliprole; the second prevention and control drug is prepared from ethephon, brassinolide, a macroelement water-soluble fertilizer, emamectin benzoate and chlorantraniliprole; the third prevention and control drug is prepared from tebuconazole, pyraclostrobin, etoxazole, abamectin, a phosphate fertilizer and a nitrogen fertilizer; the fourth prevention and control medicine is prepared from pyraclostrobin, epoxiconazole, etoxazole, abamectin, bifenthrin, clothianidin, compound sodium nitrophenolate, phosphate fertilizer and nitrogen fertilizer. The medicine composition has the effects of increasing yield, preventing diseases, preventing insect pests and preventing lodging.

The invention discloses a high-efficiency and low-cost durian ripening acceleration method, and belongs to the technical field of fruit ripening acceleration, the durian ripening acceleration method comprises the following steps: placing durian with the first-grade ripening degree in a fruit packaging carton, taking an ethephon controlled release bag, soaking with water, placing in the fruit packaging carton, closing a carton cover, placing at the temperature of 25-28 DEG C for 4 days, opening the carton cover every 6-8 hours for ventilation for 1-2 minutes, and then taking out the durian; the invention further discloses a preparation method of the ethephon controlled release bag. Compared with an existing ethylene gas ripening method, the method can be implemented by adopting a common fruit packaging carton, professional equipment is not needed, and the cost is reduced; compared with an ethephon liquid ripening method, the method has the advantages that ethylene gas is slowly and continuously released through the hydrolysis effect of the ethephon controlled release bag, uniform ripening of the durian is achieved, negative problems caused by uneven spraying of the ethephon liquid are effectively avoided, the environmental protection risk is greatly reduced, and the method is suitable for large-scale popularization and application.

The invention relates to a corn staggered plant planting and chemical control synergistic yield increasing method, which comprises the following steps that wide and narrow row staggered plant planting is adopted, the row spacing of corn comprises wide rows and narrow rows, the wide rows and the narrow rows are arranged in a staggered manner, the row spacing of the wide rows is 78-82cm, and the row spacing of the narrow rows is 38-42cm; two adjacent rows of corn plants corresponding to each narrow row are planted in a staggered manner, so that one row of corn plants are aligned to the midpoint position of a connecting line of two corn plants in the other row; the planting density per mu is 5500 to 6000 plants; a chemical control agent is sprayed twice in the growth period of the corn, the chemical control agent is a compound chemical control agent prepared by compounding ethephon and chlormequat chloride according to the mass ratio of 3: 1, and the chemical control agent is sprayed in the 8-leaf expansion period and the 15-leaf expansion period of corn plants in sequence; the total amount of the pesticide sprayed each time is 11.8-12.2 g / mu, and the concentration of the spraying liquid is 0.2 w / v% + / -0.05%. According to the method, wide-narrow row staggered plant planting and secondary chemical control are cooperated, and the purposes of stable lodging resistance and high yield are achieved under the condition of high close planting of corn.

The present invention belongs to the technical field of pesticides and provides a regulator for highland barley and preparation method and application thereof. The regulator uses water as a solvent and includes components with the following concentrations: 60-84 g / L of lentinan, 150-210 g / L of ethephon, 100-140 g / L of polyaspartic acid salt, and 15-25 mL / L of active agent. The regulator of the present invention can induce highland barley to establish a huge root system, increase the toughness of highland barley stems, dwarf the length of highland barley internodes, reduce plant height, and improve the ability of highland barley to resist lodging; at the same time, it can improve the photosynthetic performance of highland barley leaves and the development of spikes, and promotes high and stable yield of highland barley.

The invention relates to a liquid concentrate comprising a plant growth regulator like prohexadione dissolved in an ionic liquid, the ionic liquid comprising an organic base and a strong acid. The ionic liquid may comprise an amine, amide, imine, imide or urea. The strong acid preferably is ethephon.

Wacker oxidation can be used as a signal transduction mechanism for the selective and sensitive detection of ethylene in air via chemiresistive sensing. Using this system, the senescence of lisianthus flowers and carnations can be monitored.

The invention discloses an intelligent identifying and sorting robot for maturity of vegetables and fruits, which belongs to the technical field of intelligent sorting and comprises a first conveying device, a support frame, a base and a spraying mechanism. A preliminary detection mechanism is installed on the first conveying device and can dynamically detect and recognize vegetables and fruits. According to the device, the maturity of vegetables and fruits can be dynamically and visually detected through the preliminary detection mechanism, comprehensive and accurate visual maturity detection is achieved, and sorting is completed through the material guide mechanism; through the blanking bin, in the blanking process, based on the principle that the concentrations of ethylene secreted by vegetables and fruits with different maturity degrees are different, further maturity degree detection is carried out on the vegetables and fruits with qualified visual maturity degree detection, so that accurate detection on the vegetables and fruits with large sizes, such as green and awn fruits, and the maturity degree of the vegetables and fruits is difficult to judge through the appearance is realized; and a corresponding amount of ethephon solution can be sprayed according to the maturity, different degrees of ripening acceleration can be carried out on the seeds, the maturity can be controlled, and great convenience is brought to market sales.

The invention discloses a composition and application thereof in promoting filling and well cooking of rapeseeds. The composition disclosed by the invention contains ethephon, pyruvic acid, alanine and methionine. The ethephon is compounded with pyruvic acid, alanine and methionine, so that the development and maturation period of rape siliques is shortened, the ripening of rapeseeds is promoted, the filling of the rapeseeds can be promoted, and the thousand seed weight and yield of the rape are further improved; the risk that the thousand seed weight and the yield of the rape can be obviously reduced due to the improper use amount of ethephon which can promote the complete ripening of the rape seeds is avoided. In addition, the composition also has the advantages of being green and safe, and the composition does not contain toxic and harmful components, so that the safety risk possibly caused by ripening the rapeseeds by using herbicides is avoided.

The application relates to the technical field of chemical regulation of crops, and discloses an integrated chemical regulation method for maize-soybean strip intercropping, which comprises the following steps: S1. spraying an aqueous solution of fresh amine ester and ethylene in the whole field in the maize jointing period; spraying the aqueous solution of fresh amine ester and ethylene in the whole field in the maize large trumpet mouth period; S2. spraying triadimefon in the whole field in the soybean branching period and the soybean initial flowering period; and S3. field management until harvesting. The integrated chemical regulation method sprays one chemical regulation agent on maize and soybean at the same time, is convenient for field mechanized operation, and does not decrease the group yield and total output value compared with separate chemical regulation.

The invention belongs to the field of durian cultivation, and particularly relates to a durian flower forcing agent, a preparation method and application. According to the durian flower forcing agent, prohexadione calcium, potassium phosphite, benzyl benzyl aminopurine, thidiazuron and ethephon are reasonably combined, durian can be promoted to bloom in advance, the durian flower forcing agent is diluted and then sprayed to durian trees, budding of the durian trees can be achieved 9 days after spraying, and the budding time and the blooming time are shortened; meanwhile, the cluster number of durian flower buds can be remarkably increased, important guarantee is provided for increasing the yield of durian, and economic benefits of durian cultivation can be greatly increased.

The invention discloses a combination agent for promoting grape germination and a use method thereof. The combined agent comprises one or more of lime sulfur, boric fertilizer, ethephon and sodium abietate. The treatment of the combination of lime sulfur and boron fertilizer accelerates the nutrient backflow, enhances the accumulation of branch dry matter and starch, effectively improves the germination speed, germination uniformity and flowering rate, and is successfully applied to the production of primary fruits of grape in season cultivation and secondary fruits of grape in staggered season cultivation for the first time. According to the method, nutrient accumulation of grape vines can be improved, germination is effectively promoted, technical support is provided for staggered season cultivation of grapes based on secondary fruits, and multiple positive effects of lime sulfur and boric fertilizer composite treatment on the sunshine rose grapes are disclosed for the first time. Particularly, the combined treatment of the lime sulfur and the boric fertilizer can be used as an innovative technology, and nutrient accumulation and flower bud differentiation in staggered season cultivation can be effectively promoted while the germination quality of the grapes under the conventional cultivation condition is improved.

The invention discloses a lycium barbarum defoliating agent and a preparation method thereof, and relates to the field of lycium barbarum defoliating agents, and the lycium barbarum defoliating agent is prepared from the following components by mass: 20-60 parts of potassium carbonate; 30 to 50 parts of sodium oxalate; 5 to 10 parts of ethephon; 10 to 20 parts of abscisic acid; the preparation method comprises the following steps: mixing and uniformly stirring the abscisic acid and the sodium oxalate to obtain a mixed solution A, dissolving the potassium carbonate powder with the purified water to obtain a potassium carbonate mother solution, fully mixing the mixed solution A with the potassium carbonate mother solution, adding the ethephon, and uniformly stirring to obtain the Chinese wolfberry defoliating agent. Potassium carbonate and calcium oxalate act on plant leaves at the same time, the leaves can be dewaxed and dewaxed rapidly, the content of calcium ions in petioles is reduced, abscisic acid and ethephon are blended, synthesis increase of protein is promoted, re-synthesis of cellulase in a separation layer is promoted, formation of the separation layer is accelerated, organs fall off, and the leaves fall off. Therefore, the purpose of defoliating is achieved.

The invention discloses a method for inducing pineapple to generate multiple crown buds, and belongs to the technical field of plant cultivation. The method comprises the following steps: after pineapple plants reach a treatment standard, carrying out flower forcing and germination accelerating induction treatment by adopting a 500-1000-fold solution of 40% ethephon water and 0.2% urea, then spraying a mixed solution of 0.01% melissyl alcohol, 0.01% IBA and 0.01% paclobutrazol to promote germination, and then carrying out film covering treatment for 3-5 days by using a plastic film; after the treatment is completed for 20-40 days, entering a budding and reddening period, and gradually showing complete multi-crown buds. After the crown buds are transplanted into the seedling raising cups, foliar fertilizer is sprayed, 0.01% melissyl alcohol 1000-2000 times liquid is additionally applied after transplanting is conducted for 15-20 days, and after crown bud seedlings grow to be 30-35 cm high and the stem thickness is 2.0 cm, the crown bud seedlings can be outplanted. According to the method, the ethephon, the urea, the melissyl alcohol, the IBA and the paclobutrazol are adopted to jointly achieve the effects of forcing flowers and promoting buds, the average number of crown buds of pineapple plants reaches 14-16 and is higher than the conventional breeding level, and the crown buds reach the outplanting standard 60-65 days after being transplanted. Therefore, the method can effectively improve the pineapple breeding efficiency.

The invention relates to the technical field of fruit tree cultivation, in particular to a method for thinning kiwi fruits and / or increasing the ascorbic acid content of the kiwi fruits and application. The invention provides an application and method of a plant growth regulator composition in thinning kiwi fruits and / or increasing the ascorbic acid content of kiwi fruits, and the plant growth regulator composition comprises broad beans, ethephon and 6-benayl aminopurine. According to the method disclosed by the invention, the single fruit rate and the ascorbic acid content of the kiwi fruits of Jinchu No.1 can be remarkably increased, and the double-fruit rate of the kiwi fruits is remarkably reduced, but the three-fruit rate and the total fruit setting rate of the kiwi fruits are not influenced.