239 results about "Zeatin" patented technology

Personal care composition comprising from about 0.05% to about 5% of at least one aquaporin-stimulating compound selected from the group consisting of xanthine, caffeine; 2-amino-6-methyl-mercaptopurine; 1-methyl xanthine; 2-aminopurine; theophylline; theobromine; adenine; adenosine; kinetin; p-chlorophenoxyacetic acid; 2,4-dichlorophenoxyacetic acid; indole-3-butyric acid; indole-3-acetic acid methyl ester; beta-naphthoxyacetic acid; 2,3,5-triiodobenzoic acid; adenine hemisulfate; n-benzyl-9-(2-tetrahydropyranyl)adenine; 1,3-diphenylurea; 1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea; zeatin; indole-3-acetic acid; 6-benzylaminopurine; alpha-napthaleneacetic acid; 6-2-furoylaminopurine; green tea extract; white tea extract; menthol; tea tree oil; ginsenoside-RB1; ginsenoside-RB3; ginsenoside-RC; ginsenoside-RD; ginsenoside-RE; ginsenoside-RG1; ginseng root extract; ginseng flower extract; pomegranate extract, extracts from Ajuga turkestanica; extracts from viola tricolor and combinations thereof; an additional ingredient selected from the group consisting of niacinamide, glycerin and mixtures thereof, and a dermatologically-acceptable carrier.

The invention relates to an active seaweed fertilizer and a production method thereof. The preparation method comprises the steps of digestion, enzymolysis, post-treatment and the like. The production method is characterized in that the digestion of weak base is performed before complex enzymes are added, so that large damages on active substances in seaweeds can not be caused, and the preliminary extraction of the seaweeds can be facilitated, so that the dosage of the complex enzymes can be reduced. The seaweed fertilizer product is rich in alginic acid, gibberellin, zeatin and the other active substances, can effectively promote the growth and development of plants and improve the plant yield, and meanwhile greatly keeps the natural adverse resistance ingredient glycine betaine, phenol compounds and the like in the seaweeds, so that the improvement of the stress resistance of the plants can be facilitated.

The invention discloses a pesticidal foliage fertilizer, which is prepared by grinding and uniformly mixing gibberellin 3, heteroauxin, brassinolide, abscisic acid, jasmonic acid, zeatin, salicylic acid, 1-aminocyclopropane-carboxylic acid. The fertilizer is a novel phytosterol foliage fertilizer with advantages of high efficiency, no toxicity and environmental friendliness, can promote the growth of plants by over 10 percent, and has no environmental pollution.

The invention discloses a foliage spraying preparation for promoting fruit setting and fruit swelling and enhancing crop stress resistance. The preparation comprises the ingredients including fulvic acid, DA-6, 2,4-D sodium salt, alpha-pimacol, gibberellin, zeatin, dimethyl sulfoxide, butylcellosolve, sodium tetraborate, zinc sulfate, ferrous sulfate, molybdenum sulfate and magnesium sulfate. After the preparation is sprayed, nutrient substances are rapidly transferred from blade surfaces and are gathered at the plant reproduction active part, and the center endogenous hormones level of fruits is improved; the cell division is promoted, the cell size is amplified, the fruit swelling is accelerated, the chloroplast development and the chlorophyll formation are promoted, the photosynthetic efficiency of leaves is improved, and the unit area yield is increased; the flowing of nutrient substances to female flowers is enhanced, the fruit development speed is accelerated, the uniform fruit development is controlled, the deformity is reduced, the fruit surface is kept fresh, bright and smooth, and the commodity rate is obviously improved; and the immunological competence of plants are excited, the resistance is improved, the occurrence of the pest and disease damage is reduced, the senescence is delayed, and the picking period and the fruit shelf period are prolonged.

The invention provides a process for quickly propagating a large quantity complete oil tea clone plants with roots by tissue culture, which comprises the steps of secondary culture medium screening and hormone combination, seedling strengthening culture medium screening and hormone combination, root preprocessing, and rooting culture medium screening and hormone combination, wherein WPM+BA (Woody Plant Medium and Benzyladenine, 3-7mg / L), IBA (Indol Butyric Acid, 0.1-2mg / L) and ZT (Zeatin, 0.05-2mg / L) are used as secondary culture media for propagation, the propagation period is shortened to 30-40 days, and the propagation coefficient reaches 4.2-9.1; WPM+IBA (0.1-2mg / L) and biotin (0.5-3mg / L) are used as seedling strengthening culture media for strengthening seedlings, and seedlings can take root after 20-25 days; and after being treated with IBA, tissue culture seedlings which are 2-4cm in height are directly inoculated on the culture media of MS (Murashige and Skoog medium, 1 / 4-1) and AC (Activated Carbon, 200-600), the tissue culture seedlings take root and form complete plants after 25-3 0days, and the rooting rate reaches more than 85%.

The invention discloses a blueberry tender stem tissue culturing and rapid propagation process. The process comprises the following steps: S1, selecting tender stem without lignification from a field, purifying, disinfecting and cutting into stem sections with bud; S2, carrying out induction culturing, wherein the induction culture medium contains MS, 3.0mg / L of ZT (zeatin), 0.1mg / L of IBA (indolebutyric acid), 30g / L of sucrose and 6.5g / L of agar powder; and S3, carrying out subculturing, wherein the multiplication culture medium contains MS, 0.5-1.5mg / L of ZT, 0.05-0.1mg / L of IBA, 30g / L of sucrose and 6.5g / L of agar powder, and carrying out nursery stock rejuvenation by using the culture medium containing MS and0.3-0.7mg / L of ZT before transplanting of the blueberry. The process has the beneficial effects of high reproductive rate, high reproductive speed and low cost of tissue culture seedling; and the cultured nursery stock is high in quality and uniform, can remove virus easily, has developed root systems, and provides a favorable basis for the later-stage tree body growth result.

The invention belongs to the field of phytoremediation of heavy metal polluted soil, and discloses a method for improving phytoremediation efficiency of copper-polluted soil on the basis of the existing phytoremediation method for the heavy metal polluted soil. The method comprises the following steps: applying a chemical enhancer containing powdered sulfur and ethylenediaminedisuccinic acid to the copper-polluted soil; spraying a nutrient solution containing exogenous plant hormone naming zeatin Z at a fixed period after planting elsholtzia splendens; picking the aboveground parts of elsholtzia splendens after the growing season is finished, so as to reach the purpose of remediating the heavy-metal copper polluted soil. With the adoption of the method, the growth of elsholtzia splendens is promoted, and the problems that high-copper soil represented by soil in a copper mine area inhibits the growth of elsholtzia splendens and causes short plant, small biomass and slow growth can be solved; the method has the advantages of being high in absorbing efficiency, high in degree of enrichment, and obvious in remediation effect.

The invention discloses a blueberry tissue culture method and a special culture medium thereof. The special culture medium is a primary culture medium for blueberry tissue culture and is a solid culture medium which is obtained by adding zeatin, naphthyl acetic acid (NAA), a carbon source and gels into basic culture solution; and in the primary culture medium, the zeatin has the final concentration of 2-5mg / L, the NAA has the final concentration of 0.01-0.12mg / L, and the solvent of the basic culture solution is water and solute of the basic culture solution is shown as Table 1. Experiments prove that: the primary culture medium can greatly shorten the culture period of the tissue culture from three months to two months, the inductivity of sprouts is over 90 percent, and the production capacity of tissue culture each year is over 3 million seedlings. The method has the characteristics of high efficiency and time conservation, the produced tissue culture seedlings are low in cost, the average cost of each seedling is 1.5 yuan, the obtained blueberry tissue culture seedlings have consistent inherited characteristics, and the defect that the conventional reproduction coefficient is low is overcome.

The invention discloses a culture medium for in-vitro induced regeneration plants of double-haploid stems of potatoes, which belongs to the field of agricultural biotechnologies. The culture medium comprises the following compositions: potassium nitrate, ammonium nitrate, monopotassium phosphate, magnesium sulfate, calcium chloride, potassium iodide, boric acid, manganese sulfate, zinc sulfate, sodium molybdate, copper sulfate, cobalt chloride, ferrous sulfate, disodium ethylenediamine tetraacetic acid, nicotinic acid, pyridoxine hydrochloride, glycine, glutamine, casein hydrolysate, yeast extracts, sucrose, 6-benzylaminopurine, naphthalene acetic acid, kinetin, zeatin and heteroauxin beilining. The culture medium is applied to the induction and culturing of double-haploid stem regenerated seedlings of potatoes, the test effect is good, the initiating rate is increased by 76%, and the seedling rate is as high as 80.5%. The regeneration rate of double-haploid stems of potatoes is significantly increased, thereby laying a foundation for the establishment of a genetic transformation system; and the culturing mode adopts a one-step seedling method, so that the pollution probability is reduced.

The invention discloses a method for cultivating fritillaria przewalskii test-tube bulblet and aims to solve the problems of low induction rate, long cultivation cycle and complicated steps of a conventional fritillaria cultivation method. The method comprises the following steps: selecting an explant to break fritillaria into cuiller and scale folus, sterilizing the explant, and then inducing the explant. The specific inducing method comprises the following steps: inoculating the sterilized explant into an inducing medium, cultivating under the dark condition that the temperature is 16 to 25 DEG C, and inducing protocorm at the base of the scale folus or the cuiller, wherein the inducing medium for the scale folus comprises the following formula: 50 to 80g / L of 1 / 2MS basic culture solution and sucrose, 2 to 5g / L of activated carbon, 5 to 6g / L of agar, 500 to 2,000mg / L of arginine, 1 to 5mg / L of zeatin (ZT), 0.1 to 0.5mg / L of brassinolide (BR) and 1 to 5mg / L of jasmonic acid methyl ester (MEJA), the hormone formula for the cuiller is different from that for the scale folus, and the pH value of the medium is 5.5 to 6.5. The method has the characteristics of high breeding speed, short cultivation cycle, high propagation rate and convenient transplantation, can be used for cultivating seed bulb, and can be used as a commodity.

The invention belongs to the technical field of pesticides, and particularly relates to a plant growth regulator and an application method thereof. Effective components of the plant growth regulator comprise alternaria tenuissima activated protein and any one selected from diethyl aminoethyl hexanoate, zeatin and compound sodium nitrophenolate. According to the plant growth regulator, and wettablepowder, water dispersible granule, suspension and water aqua thereof, the alternaria tenuissima activated protein and any one selected from diethyl aminoethyl hexanoate, zeatin and compound sodium nitrophenolate are mixed with each other to be used as the effective components, and the action mechanisms are different; after compounding, a synergistic effect is achieved under a defined usage concentration and usage method according to various crops such as rice, corns, wheat, peanuts, cotton, vegetables, tobaccos, fruit trees, gardens, flowers and the like, and the yield and the income are increased; an obvious weight-increasing effect is achieved for fruits of the fruit trees, and the chlorophyll content of plants is effectively improved; and moreover greenness preservation and an anti-aging effect are achieved, the sugar content is improved, growth of the crops is promoted, and quality of the fruits is effectively improved.

The invention discloses a proliferation medium for Sierra cowberry blueberry tissue culture. 1L of the proliferation medium comprises modified WPM (woody plant medium), 0.5mg of NAA (Naphthalene Acetic Acid), 0.2mg of GA, 2-3mg of zeatin (ZT), 30g of saccharose, and 7g of agar, and has pH value of 5.2. 1L of the modified WPM contains macroelements, iron salts, microelements and organic substances, wherein the macroelements comprise 893mg of potassium nitrate, 119mg of ammonium sulfate, 370mg of magnesium sulfate, 278mg of calcium nitrate tetrahydrate, and 170mg of monopotassium phosphate; the ferric salts comprise 74.6mg of ethylene diamine tetraacetic acid, and 55.6mg of ferrous sulfate; the microelements comprise 22.3mg of manganese sulfate, 8.6mg of zinc sulfate, 0.025mg of copper sulfate, 0.25mg of sodium molybdate, 6.2mg of boric acid, 0.415mg of potassium iodide; and the organic substances comprise 0.5mg of niacin, 0.5mg of thiamine hydrochloride, 0.5mg of pyridoxine hydrochloride, 100mg of inositol and 2mg of glycine. The proliferation rate can reach more than 12 after the medium is used for 30 days.

The invention mainly relates to the technical field of planting, and discloses a method for treating tea tree seeds. The method comprises the following steps: preserving seeds; soaking the seeds; sterilizing the seeds; accelerating germination of the seeds; sowing the seeds. The method is simple, the germination rate of the tea tree seeds can be up to 91%, the pretreatment time before seeding can be shortened to 5-6 days, the sprouting time after direct seeding can be shortened to 8-9 days, the survival rate can be up to 94%, and the economic income can be increased by 18.3%; after being picked, tea tree fruits are soaked in a chitosan liquid, then seed coats can be softened, nutrition can be provided, dormancy completion can be accelerated through freeze drying, and germination can be accelerated; as the seeds are soaked in the chitosan liquid, softening of the seed coats can be accelerated, the pH value can be reduced, germ activity can be stimulated, and germination can be accelerated; after bactericide is sprayed, pathogenic microorganism multiplication can be inhibited; through plant extraction, multiple nutrient components can be available, and the survival rate can be increased; due to addition of zeatin and perindopril, seed germination can be promoted; the seeds are put into a germination accelerating tank, and a plant ash solution is sprayed, so that balanced nutrition can be provided, and the stress resistance can be improved.

The invention discloses a method for measuring plant hormone in a subgenus yulania plant. The method comprises a plant hormone extraction step, a standard solution preparing step, a high performance liquid chromatogrophy step and a standard solution measuring step, wherein in the plant hormone extraction step, low-temperature grinding, low-temperature leaching at a dark place, PVPP (Crosslinking Polyvingypyrrolidone) extraction and the like are adopted, so that efficient extraction of zeatin is ensured. The method has the advantages of better peak form, high separation degree, no tailing phenomenon, high repeatability, high recycling rate, accuracy and reliability.

The application discloses a composite nutrient solution for adjusting the growth of crops, a preparation method and an application thereof. The composite nutrient solution comprises the following main active components in parts by weight: 0.05-5 parts of kinetin, 0.05-5 parts of 6-benayl aminopurine, 0.05-5 parts of zeatin, 0.01-1 part of diethyl aminoethyl hexanoate and 0.001-0.1 part of brassinolide. The composite nutrient solution disclosed by the application is used for the reproductive growth stage of the crops and can be used for carrying out high-efficiency adjustment on the crops; the composite nutrient solution has the beneficial effects that not only can the set flowers and set fruits be increased and can the effective pollination be improved, but also the stress resistance can be effectively improved, the premature senescence of the crops can be prevented and finally the purpose of increasing the yield of the crops is achieved. The composite nutrient solution has the advantages that the functions are diversified, the use efficiency is high and the use cost is effectively reduced.

The invention discloses a method for establishing a high-efficiency regeneration system by using broccoli microspore embryo as explant, and belongs to the technical field of plant tissue culture. The method comprises two main steps of preparing a culture medium and culturing a broccoli microspore embryo plantlet. According to the method, the microspore embryo is used as the explant, the bud inductivity is as high as 100%, the bud number of each explant is 30-50, after the culture medium is added with 0.5-1.0mg / L of zeatin, the bud inductivity and the induction number are respectively increased by 1.1 times and 3.2 times; and after 4.0-5.0mg / L of LAgNO3 is added, the browning rate is reduced by about 10%. By utilizing the method, the efficiency in broccoli tissue culture is greatly improved, and a new technical way for improving the heredity conversion rate is provided. The method can be popularized and applied in broccoli tissue culture and gene engineering heredity improvement.

The invention relates to plant propagation and in particular relates to an in-vitro efficient seedling cultivation method synchronous in rooting and growing by utilizing tender stem segments of thuja koraiensis. A culture medium for the simultaneous growing of roots and the stem segments comprises the components: the culture medium+ 0.06-0.08mg.L-1 of ZT (Zeatin)+ 0.01-0.03mg.L-1 of NAA (NaphthylAcetic Acid)+ 0.02-0.04mg.L-1 of IAA (Indole Acetic Acid); in the culture medium, 8.0g.L-1 of agar and 15g.L-1 of cane sugar are added; and the method comprises the steps of: adjusting the pH (potential of Hydrogen) value of the culture medium to be at 5.6, culturing the tender stem segments under the conditions that the photoperiod is 10h.d-1, the illumination intensity is 900lx and the temperature is 23-27 DEG C, planting small plants after the expanding propagation of the seedlings in a matrix comprising the components of disinfected peat, rotten pine needle and river sand in the ratio of 4:3:1, preserving the moisture and the temperature through film mulching, controlling the temperature in the range of 16-20 DEG C and adopting the 10h.d-1 of natural lighting. By adopting the method, the survival rate of the small plants can be up to more than 95.0%, and therefore, the needs of industrial seedling cultivation can be satisfied.

The invention belongs to the field of plant culture mediums, and specifically relates to a plant culture medium and a preparation method thereof. The plant culture medium provided by the invention comprises the following components in percentages by weight: 30 to 50% of sludge, 25 to 35% of coco peat, 10 to 30% of vermiculite, 1 to 3% of a plant fiber water absorbent, 1 to 5% of coconut juice, 1 to 3% of zeatin and 2 to 4% of a sodium silicate aqueous solution. The plant culture medium provided by the invention contains high nutrition, and has good water-holding, fertilizer-preserving and air-permeable performances. Meanwhile, the follow-up work of sewage treatment is solved; and highly-efficient resource utilization of wastes is realized.

The invention relates to a high-quality and high-yield cultivation method of coptis chinensis and solves the problem that coptis chinensis is low in yield. According to the technical scheme, the method includes: bagging or isolation seed reproduction is used, typical large floral leaves are selected as seed reproduction female parents, typical large floral leaf seedlings are selected from a nursery garden, isolation cultivation is performed, a female parent field is built, impurities and inferiors are removed during female parent field management, sparse planting of 20000 plants per mu is performed, seed reproduction is performed timely, the seeds planted for four years are highest in budding rate, budding potential and emergence rate, the winter fertilizer of the female parent field is prepared from late September to early October, 2kg of microorganism active bacterium fertilizer, 5kg of available phosphorus and 3kg of available potassium are applied to 50kg of mu rapeseed cake and covered with soil to 1-1.5cm, seed strengthening fertilizer is applied before early spring bolting accordingly to the quantity that 10kg of ammonium bicarbonate and 10kg of potassium sulfate are added to 10kg of ammonium dihydrogen phosphate and covered with earth to 0.5-1.0cm, seeding is performed in late September, and every 5kg of coptis chinensis seeds are soaked by zeatin with the concentration of 10ppm for 30 minutes, the water is then filtered, and the seeds are aired.

The invention relates to plant propagation technology, in particular to a rapid seedling culturing method of a pinus sylvestris in a tube. The method comprises the following steps: (1), a branch of a trunk of a wild pinus sylvestris plant is cultured in water, the stem section and stem tip are remained for spare use as explants after processed; (2), 0.07 mg / L to 0.08 mg / L -1 of indolebutyric acid, 0.03 mg / L to 0.04 mg / L -1 of naphthylacetic acid, 0.16 mg / L to 0.17 mg / L -1 of zeatin and 2.90 mg / L to 3.20 mg / L -1 of gibberellin are added to a minimal medium; and (3), rapid propagation, seedling hardening and transplanting are conducted to the pinus sylvestris plant. The main stem section of the wild pinus sylvestris plant is taken as the materials, the main stem section is controlled to take root in the tube and meanwhile a main stem bud germinates and grows so that single-step rapid propagation purposes of stem proliferation are achieved, the problems that seeds are difficult to propagate, cutting propagation root taking rate and survival rate of transplanting are low, wild resources receive extinctive threatens and the like are solved, and high quality seedlings are provided for further manual large-scale propagation and pinus sylvestris culturing.

The invention discloses an olive seed treatment agent, relates to a treatment method of a hard seed, and belongs to the technical field of agriculture. The treatment agent is characterized by comprising the following raw material ingredients: IBA (Indole Butyric Acid), sugar, agar, ethephon, propylene glycol, zeatin, sodium lignin sulfonate, heteroauxin, zinc glutamine, glycine, vitamin E, vitamin D, citric acid and the balance of water, wherein the above ingredients are proportioned by weight, and the pH (Potential of Hydrogen) is regulated to 5.4-5.6. The treatment agent disclosed by the invention has the following beneficial effects that: a microwave generator is used for activating the growth mechanism of a seed embryo cell; a culture medium comprising the IBA, the sugar, gibberellin, naphthylacetic acid, zeatin, heteroauxin, sodium glutamate, the glycine, the vitamin E, the vitamin D and the citric acid is used in assistance to improve the germination percentage of seed and improve crop yield; as a plant regulator, the treatment agent can be used for enhancing the crop lodging capacity; the preparation process is simple and easy to operate, and is low in preparation cost.

The invention discloses an accelerant for quick recovery of nitrifying bacteria after suppression by heavy metals. The accelerant comprises components by weight as follows: 1-7 parts of vitamin H, 0-8 parts of lysine, 2-17 parts of aspartic acid, 0-6 parts of tryptophane, 0.5-3 parts of 6-benzyladenine, 0-2 parts of zeatin, 2-20 parts of iron, 4-16 parts of zinc, 4-12 parts of magnesium, 0-10 parts of copper, 4-8 parts of manganese and 2-6 parts of cobalt, wherein the content of the lysine, the content of the tryptophane, the content of the zeatin and the content of the copper are not zero simultaneously. According to the accelerant, raw materials are easy to obtain, the price is low, and the accelerant is non-toxic and environment-friendly, has extremely low content of a carbon source and is beneficial to quick recovery of nitrifying bacteria after suppression; the accelerant is simple to prepare and use and free of capital expenditure and power consumption; the accelerant can be applied to the condition that the nitrifying bacteria of domestic and industrial sewage treatment plants are suppressed and can be widely applied.

The present invention is directed to compositions and methods of micropropagation of a rose plant and in vitro flowering of the rose plant. Young shoots are induced to produce buds in an enclosed vessel containing a first culturing meidum comprising benzyladenine, an auxin and 2% sucrose as carbon source. Buds are excised and cultured on a medium for propagation and multiplication of plantlets. Plantlets are then transferred to a medium comprising thidiazuron, an auxin and myo-inositol for induction of flower buds, followed by culture on a medium comprising benzyladenine and an auxin for plantlet elongation and finally culture in the fifth medium without phytohormone for flowering. Alternately, after propagation and multiplication, plantles are transferred to a medium comprising zeatin, auxin and myo-inositol for induction of flower buds followed by culture on a medium without phytohormone for elongation and flowering.

The invention provides a Bacillus edaphicus CGMCC No.2315 which is high in salt tolerance, heat resistance and adversity-resistance, can secrete various phytohormones such as indopropionic acid, zeatin, gibberellin, and the like, and can control nematodes and various fungal diseases. The invention also provides a method for producing the spore powder of the Bacillus edaphicus, which effectively reduces the death rate of the core bacterial strains, enables the survival rate of the core bacterial strains to reach 93 percent above and prolongs the guarantee period of the spore powder to more than 12 months. The multi-functional bacterial strain and the production method of the spore powder thereof are suitable for producing biological organic fertilizer, ecological formula fertilizer, biological pesticide, soil improvement agent and other biological preparations.

The invention relates to the technical field of seed breeding, in particular to a polygonatum cyrtonema seed breeding method capable of prolonging the service life. The polygonatum cyrtonema seed breeding method comprises the following steps that S1, polygonatum cyrtonema seeds are preprocessed: A1, ripe polygonatum cyrtonema seeds are selected; A2, the polygonatum cyrtonema seeds stored in the previous step in the first ten-day period of April are taken out and are immersed in a seed treatment agent, wherein the seed treatment agent is prepared from, by weight, 0.05-2% of gibberellin, 0.02-3%of indoleacetic acid, 0.01-1% of naphthylacetic acid, 0.01-1% of 5-hydroxyl-IAA, 0.01-1% of indolebutyric acid, 0.01-2% of 6-benzylaminopurine, 0.01-2% of 6-furfurylaminopurine, 0.01-2% of zeatin andthe balance water ; A3, seed treatment is performed through cooperation of infrared light and ultrasonic waves; S3, sowing is performed. The polygonatum cyrtonema seeds are treated by adopting the seed treatment agent, growth of the polygonatum cyrtonema seeds can be promoted, treatment is performed by adopting the infrared light and ultrasonic waves, and the service life of polygonatum cyrtonemacan be prolonged.

The invention discloses corn yield improvement accelerant. The corn yield improvement accelerant is composed of zhongshengmycin, cyprosulfamide, cysteine, plant growth regulator agents, zeatin, 2,4-dichlorobenzene oxygen butyl acetate, nanometer titania, abamectin and alginic acid. The corn yield improvement accelerant is a compound and efficient type accelerant, the proportion is reasonable, the accelerant has the great functions of promoting cell enlargement and division, promoting synthesis of nucleic acid and protein, suspending organ abscission, crop aging and chlorophyll synthesis, improving photosynthetic rate, enhancing the stress resistance, breaking apical dominance, promoting fruit setting, enlarging the fruits and inducing parthenocarpy, the cob rate is high, cobs are big, the grains are starlatine, and under the normal growth environment, the yield per mu is increased by 250 kilograms at the minimum. The corn yield improvement accelerant has a great effect for preventing and treating field diseases caused by bacteria and fungus, the chemical dosage is reduced, the chemical cost is reduced, no residues exist, the accelerant is convenient to use, the operation and implementation are easy, the dosage is little, and the cost is low.

The invention discloses a method for quickly propagating angelica keiskei koidzmi. The method comprises the following steps that on a hormone-containing Murashige and Skoog (MS) culture medium, leaves and stems of the angelica keiskei koidzmi are induced to grow callus tissues and form somatic embryos further; the somatic embryos burgeon to form new plants; and the new plants grow roots on the rooting culture medium. A liter of hormone-containing MS culture medium comprises the components of 0.5 to 5mg of zeatin, 0.5 to 1mg of NAA and MS minimal medium. The method has the advantages of overcoming the defects of the conventional methods for propagating angelica keiskei koidzmi by tissue culture and realizing the rapid propagation of the angelica keiskei koidzmi; and moreover, the culture period is short, regenerated plants easy grow root, and seedling emergence rate is high. The method can be applied to the high-efficiency propagation of the angelica keiskei koidzmi.

The invention discloses a plant growth adjusting composition which comprises an active component A and an active component B, wherein the weight ratio of the active component A to the active componentB is 1:(0.1-10); the active component is 5-aminolevulinic acid or a derivative thereof; the active component B is zeatin. The plant growth adjusting composition is good in effect in increasing the yield of agricultural products and improving the quality of the agricultural products, and is free of medicinal danger and wide in application.

The invention mainly relates to the technical field of planting, and discloses a novel watermelon seed dressing agent. The watermelon seed dressing agent is prepared from the raw materials: nandina domestica, cedar needles, cortex erythrinae, water Caltrap shells, Illicium simonsii leaves, casuarina, Chukrasia tabularis, bombax roots, Jasminum multiflorum, Jasminum officinale, lignum vitae, compound enzyme, mint extract, uric acid, matrine alkali powder of which the concentration is 1.1% and zeatin; the novel watermelon seed dressing agent is rich in raw materials, safe and non-toxic, faint in scent and free of peculiar smells, convenient to use and less in use amount, further added with a variety of Chinese herbal medicines, extracted from pure plants and rich in nutrition and has a role of spectrum sterilization, so that micromolecule nutrients required for germination of watermelon seeds are provided to promote germination, and the sterilization and insect resistant rates both reach 86.2%; a variety of nutritional extractants can keep the embryo vigor of the watermelon seeds and enhance the stress resistance of watermelon seedlings; the uric acid is taken as a harmful body metabolite and can promote the watermelon seeds to germinate, so that wastes are turned into useful resources and utilization ways of the uric acid are increased; by adopting the novel watermelon seed dressing agent, the germination rate of the watermelon seeds reaches 97%, the watermelon yield is increased by 11.4%, and the planting cost is saved by 9.6%.