261 results about "Thidiazuron" patented technology

The invention relates to a plant growth regulator composition containing maleic hydrazide and the purposes thereof. The composition contains maleic hydrazide (A) and a combination of known plant growth regulators, such as paclobutrazol, uniconazole, cycocel, mepiquat chloride, triapenthenol, daminozide, ethephon, taterpex and thidiazuron, wherein the weight ratio of the (A) to the (B) is 1: 300 to 500:1 and preferable 1:100 to 300:1, the (A) and the (B) can be proportioned with known aids and an excipient to prepare any agriculturally acceptable preparation; and the agriculturally acceptable preparation can be diluted with water or soil into a needed concentration of 1-8000 mg/kg, preferable 50-5000 mg/kg and used for regulating the growth of cultured plants, such as hedge plants, lawns, landscape plants, fruit trees, vegetables, economic crops, food oil crops and forage grass through the treatments of irrigation, flood irrigation, fertilization with water, jetting, spraying, scattering, smearing, injecting, transfusing, dressing seeds, spreading fertilizer, dispersing, and the like. The composition has the advantages of wide range of applications, low cost, good effect and synergy.

The invention relates to a tissue culture and rapid propagation method of acer palmatum. The method comprises the following steps of: after a series of sterilization processes, carrying out isolated culture on acer palmatum stems by adopting NN69 as a basic culture medium; and establishing a rapid propagation system of the acer palmatum by utilizing hormone regulation and control to successfully culture an integrated rooting regeneration plant with a transplant survival rate of about 90 percent, wherein a starting culture medium for inoculating a primary generation comprises the NN69, 0.1mg/L of NAA (Naphthylacetic Acid), 0.3mg/L of TDZ (Thidiazuron) and 30g/L of sucrose with a pH value of 5.8; an enrichment culture medium comprises the NN69, 30g/L of sucrose, 0.1mg/L of NAA and 0.8mg/L of KT-30; and a rooting culture medium comprises 1/2 NN69, 0.2mg/L of NAA, 20g/L of sucrose and 0.2g/L of active carbon. The method overcomes the defects of long conventional seedling culturing period of the acer palmatum, low cuttage propagation coefficient, and the like and realizes the industrial production of acer palmatum nursery stocks.

A method for promoting the bigbract Herb dendrobin to flower earlier by using plant growth regulator includes such steps as inducing (floral induction and flower bud breeding) to the bigbract Herb dendrobin in greenhouse, spraying the low-concentration solution of gibberellin onto its stem after its pseudobulb is ripe, spraying the mixed solution of paclobutrazol and thidiazuron onto its stem after 7 days, and spraying said mixed solution after 14 days.

The invention discloses a method for simultaneously determining multiple plant growth regulators in exported vegetables. The method comprises the following steps: extraction, purification, concentration, ultrahigh-performance liquid chromatography-triple quadrupole/composite linear ion hydrazine mass spectrometer (UHPLC-QTRAP) determination and the like. The method can simultaneously determine the 17 plant growth regulators, including gibberellin, indolyl-3-butyric acid, p-chlorophenoxyacetic acid, abamectin, diethyl aminoethyl hexanoate, atrazine, simazine, 6-benzyl aminopurine, 2,4-dichlorphenoxyacetic acid, forchlorfenuron, mepiquat chloride, chlormequat chloride, paclobutrazol, uniconazole, abscisic acid, thidiazuron and p-fluorophenoxyacetic acid. The method disclosed by the invention has the advantages of simple steps, short time consumption, high accuracy and high precision.

The invention provides a long-distance transportation comprehensive refreshing processing method of cut-flower chrysanthemum. The method comprises a step of sprinkling fruit wax on a cut-flower before transportation. The invention also provides a kit for carrying out refreshing processing on the cut-flower. The kit comprises (1) thidiazuron and (2) at least one of free 8-hydroxyquinoline, a citric acid, an ascorbic acid, sugar, triton and the fruit wax. The invention further provides an application of the kit in the refreshing processing of the cut-flower. The cut-flower chrysanthemum long-distance transportation comprehensive refreshing processing method provided by the invention has the advantages that the quality after transportation of the cut-flower is observably improved, and especially the flower opening quality and blade freshness quality are improved.

The invention provides a plant growth regulating composition and a preparation thereof. The plant growth regulating composition contains thidiazuron, gibberellic acid and azone. Field efficacy tests prove that the plant growth regulating composition and the preparation thereof provided by the invention can be used for promoting the growth of fruits as well as preventing thickening and induration of fruit stems after being used for treating the fruits.

The invention provides a high-efficiency defoliating and ripening agent used before picking cotton. The high-efficiency defoliating and ripening agent is prepared by the following steps of: fully stirring 250 to 850 kilograms of ethrel, 55 to 200 kilograms of thidiazuron, 0.50 to 1.90 kilograms of DT34 auxiliary agent and 0.15 to 0.60 kilograms of DM12 auxiliary agent in a reaction kettle in turn; fully dissolving 15 to 53 kilograms of water and 0.18 to 0.22 kilograms of silicone antifoaming agent in advance to obtain solution; adding the solution; and stirring for 25 to 30 minutes at normal temperature and normal pressure to obtain a finished product. The defoliating and ripening agent is sprayed in an application dosage of 80 to 120ml/mu when the cotton fiber grow rate is over 60 to 70 percent before picking the cotton. The defoliating and ripening agent is sprayed at 6 to 8 pm in September to October of the maturation period of the cotton; rainy days are avoided; and the defoliating and ripening agent can be re-sprayed if the defoliating and ripening agent is caught in the rain. The product combines the efficiencies of ripening and defoliating, saves labor, time and effort, greatly improves labor production efficiency and cotton quality rate, and lays a solid foundation for manual fast harvest and mechanical one-time harvest. Compared with a conventional single product, the picking period is 15 to 20 days earlier and the average defoliation rate is over 90 percent.

The invention relates to a big seedless grape cultivation method. The big seedless grape cultivation method includes the following steps of firstly, 10 to 15 days before grape flowering, pressing grape inflorescence which is selected and reserved after inflorescence thinning and still in the bud stage into GA3 liquid with the concentration of 20 ppm to get wet; secondly, after grape flowering, gently pressing trimmed spica into SM liquid with the concentration of 25 ppm to get wet; thirdly, 15 days after flowering, spraying CPPU with the concentration of 10 ppm onto spica fruit till the spica fruit gets wet; fourthly, 10 to 15 days after flowers wither away, spraying 0.1% thidiazuron liquid with the concentration of 100 ppm till the spica fruit gets wet, and finally conducting management according to a conventional method. According to the big seedless grape cultivation method, the grape seedless rate is close to 100%, the weight of single fruit can be more than 12 g through application of swelling agents, quality of grapes is greatly improved, and farmer income increase is promoted.

The invention provides an embryo culture medium for Lei bamboo (Phyllostachys praecox), which comprises the following components by weight part: MS salts, MT vitamins, 0.3 mg/L or 1 mg/L or 3 mg/L of BA (i.e. benzylamino purine), 0.1 mg/L of NAA (i.e. alpha-naphthaleneacetic acid), 0.1 mg/L of 3,5,6-trichloro-4-aminopicolinic acid, 0.001 mg/L of TDZ (i.e. thidiazuron), 20 g/L of glucose, 100 mg/L of inositol, 10 mg/L of adenine sulfate, and 0.5 g/L of malt extract. The pH value of the culture medium ranges from 5.0 to 6.0. The method of tissue culture and seedling cultivation using the culture medium comprises the following steps: collection and selection of explants, cleaning and sterilization of seeds, and extraction, inoculation, culture, sub-culture or transplanting of the embryos. The culture medium and the seedling tissue culture method are excellent in the cultivation of the Lei bamboo as the medium-diameter running bamboo with high economic value, lay the foundation for researching and bioengineering of Lei bamboo, and realize the rapid and sufficient supply of Lei bamboo seedlings.

The invention discloses a cotton defoliant and a preparation method thereof. The cotton defoliant is prepared through mixing the following components in parts by weight: 35-45 parts of magnesium chlorate, 5-7 parts of thidiazuron, 3-5 parts of Dailon, 6-10 parts of 8-hydroxyquinoline, 1-3 parts of a 888 pesticide synergist, 5-15 parts of chlorate and 10-12 parts of calcium oxide. The cotton defoliant disclosed by the invention has the characteristics of being small in particles, large in active surface, high in osmotic force, free from dust during compounding, low in cost, high in drug effects, capable of preventing cold and freeze, and the like.

The invention especially relates to a defoliation and ripening composition for cotton, and a defoliation and ripening agent for cotton, belonging to the technical field of pesticides. The defoliationand ripening composition is composed of, by weight, 0.1 to 80 parts of thidiazuron and 0.1 to 80 parts of glyphosine. The effective components of the defoliation and ripening composition in the invention include thidiazuron and glyphosine, and have obvious synergistic effect on defoliation and ripening of cotton through a variety of different action modes, and the effect of the composition is significantly better than the effect of single thidiazuron, single glyphosine, a thidiazuron-diuron preparation and the like; and the composition is effective in reducing the dosage of different reagentssuch as thidiazuron and capable of accelerating the process of ripening and defoliation and reducing production cost.

The invention relates to a method for establishing a peanut regeneration system with a young leaf as an explant, belonging to the technical field of biology. The method comprises the following steps: based on the young leaf as the explant of the peanut regeneration system, inducing and germinating on a bud induction culture medium containing TDZ (thidiazuron) and NAA (naphthyl acetic acid); promoting adventitious bud to extend on an extending culture medium containing 6-BA (6-benzyl aminopurine) and NAA; culturing to take root on the root growing culture medium containing NAA so as to obtain rooted seedling; and transplanting and cultivating according to a conventional method. In the regeneration system established by the method in the invention, bud inductivity reaches up to about 40%, and bud elongation ratio reaches up to 79%; and subculture growth is good in the regeneration system, thus the regeneration system can become a good regeneration system for gene transformation.