13 results about "Digitaria sanguinalis" patented technology

The invention belongs to the technical field of agricultural biology, and discloses myrothecium verrucaria with herbicidal activity and application of the myrothecium verrucaria. The strain is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC M 20251228. Experiments show that the bacterial strain has remarkable pathogenic activity on various weeds such as atrazine, ageratina adenophora, barnyard grass, amaranthus retroflexus and digitaria sanguinalis, the fatality rate of part of weeds under high spore concentration can reach 100%, and the maximum fresh weight inhibition rate can reach 87.47%. More importantly, the strain is safe to the growth of tomato crops and has no obvious adverse effect. The invention also provides application of the strain in preparation of microbial herbicides. The strain and the product thereof provide important strain resources and technical support for developing efficient, safe and environment-friendly novel biological herbicides, and are particularly suitable for green weed control in specific scenes such as tomato fields.

The invention relates to the technical field of pesticide reduction and synergism, and discloses a synergistic weeding composition based on trifluralin and butralin as well as a preparation method and application of the synergistic weeding composition. The composition comprises 10-20 parts of trifluralin, 10-20 parts of butralin, 70-80 parts of a solvent, 5-15 parts of an emulsifier, 2-5 parts of silicone oil and 1-10 parts of an antioxidant. The antioxidant has a structure. Tests show that the control effect of the composition on broad-leaf weeds such as edible amaranth and chenopodium album and grassy weeds such as green bristlegrass and digitaria sanguinalis reaches 80-100%, and the removal rate of the composition under the concentration of 16 mu M in a DPPH free radical removal experiment reaches up to 91.2%. The problems that a traditional herbicide is prone to oxidation inactivation, poor in pesticide effect persistence, high in environmental risk and the like are effectively solved, and efficient weeding and environmental safety are achieved.

To provide a method that exhibits excellent effectiveness in controlling the Japanese pampas grass (Digitaria sanguinalis). [Solution] A method for controlling Digitaria sanguinalis, comprising applying at least one compound selected from the group consisting of compounds of formula (2), etc., to Digitaria sanguinalis or to a place where Digitaria sanguinalis grows. TIFF2026064332000026.tif70111

The invention discloses a pesticide composition containing chloromethylsilazane and application of the pesticide composition in plant disease prevention and growth promotion, and belongs to the technical field of biocide pesticides. According to the invention, the red date kernel extract and the digitaria sanguinalis extract are taken as synergistic extracts and are combined with the chloromethylsilatrane and the 14-hydroxy brassin to prepare the pesticide composition containing the chloromethylsilatrane. When the phytophthora capsici is applied to a test, in a pepper disease resistance test, the disease index is reduced to some extent, and the relative control effect is up to 79.45% at most, which indicates that the phytophthora capsici is inhibited; in the experiment of promoting the growth of the pepper, the plant height of the pepper plant in the compound group is 19.67 + / -0.23 cm, the stem diameter is 4.07 + / -0.05 mm, the dry weight of the overground part is 1.51 + / -0.11 g, the dry weight of the underground part is 0.39 + / -0.04 g, and the growth index is remarkably improved. The pesticide composition containing the chloromethylsilazane prepared by the invention can better inhibit phytophthora capsici, is suitable for developing pesticides for preventing and treating phytophthora capsici, and also has a better promoting effect on the growth of capsicum.

The application provides a pyrrolidone-containing 2-phenylpyridine derivative and a synthesis method, application and herbicide thereof, and belongs to the technical field of compound synthesis. The structural general formula of the pyrrolidone-containing 2-phenylpyridine derivative is shown in formula I or formula II. The pyrrolidone-containing 2-phenylpyridine derivative has a novel molecular skeleton, has excellent herbicidal activity on three broadleaf weeds of amaranthus retroflexus, abutilon theophrasti and medicago sativa and three gramineous weeds of euphorbia heterophylla, digitaria sanguinalis and lolium multiflorum, and has good crop selectivity on wheat, corn and rice.

This invention discloses a P450 gene of crabgrass from paddy fields and its application in conferring resistance to cyhalofop-butyl in plants. The expression level of this gene in the resistant crabgrass biotype is significantly higher than that in the sensitive biotype. By constructing it into a plant expression vector and transforming it into maize, the resulting transgenic maize plants were sprayed with 11.25 g ai ha at the 3-4 leaf stage. ‑1 After treatment with cyhalofop-butyl, the maize exhibited significantly higher herbicide resistance and survival rate than wild-type maize. This invention confirms that the crabgrass P450 gene is directly related to herbicide resistance, providing a foundation for using this gene to breed transgenic crops resistant to ACCase inhibitor herbicides, and has broad application prospects in the field of agricultural biotechnology.

The invention discloses a cyhalofop-butyl-resistant digitaria sanguinalis MYB transcription factor gene and application thereof, and relates to the field of plant genetic engineering, and the expression of the gene in a resistant digitaria sanguinalis biotype is remarkably up-regulated. After a plant expression vector is constructed and corn is transformed, after 11.25 g a.i. Ha-1 cyhalofop-butyl is sprayed on a transgenic corn plant in a 3-4 leaf period, the pesticide resistance and the survival rate are obviously enhanced, and the transgenic corn plant is obviously superior to a wild type. The invention proves that the MYB gene can endow plants with cyhalofop-butyl resistance, provides a new gene resource for cultivating transgenic crops resisting acetyl-CoA carboxylase (ACCase) inhibitor herbicides, and has important application value.

The invention discloses a synergistic weeding and plant growth regulation composition containing trifluralin and flumetralin and application thereof, and belongs to the technical field of green agriculture. The composition comprises the following components in parts by mass: 5-30 parts of trifluralin, 5-30 parts of flumetralin, 30-70 parts of a solvent, 5-15 parts of an emulsifier, 2-5 parts of silicone oil and 1-5 parts of a specific structure stabilizer. The stabilizer is of a structure as shown in a formula 1, and the stability of the preparation is improved through triple mechanisms of ultraviolet absorption, free radical quenching and metal chelation. During preparation, a stable system is formed through solvent dissolution, homogenization treatment and pH adjustment. Application shows that after the composition is diluted 500-2000 times, the germination inhibition rate on grassy weeds such as barnyard grass and digitaria sanguinalis and quinoa broadleaf weeds reaches 90% or above, and the synergistic interaction is remarkable; meanwhile, the growth of lateral branches of crops such as cotton is promoted, the yield is increased by 8-15.3%, and the phytotoxicity risk rating is 0-1 level. The stabilizer enables the decomposition rate of effective components to be lower than 1.5% after 14 days of thermal storage at 54 DEG C and the retention rate of 4000LX illumination to be as high as 99.9%, and solves the problem of layering oxidation of a traditional preparation.

This invention discloses a strain of *Boletus urinaria* PP013 and its applications, with the preservation number CGMCC No. 40661. This invention also provides a sustainable, cyclical understory cultivation method, including liquid spawn culture, spawn culture, soil covering for fruiting, and understory inoculation. This method selects shallow-rooted tree species such as *Delonix regia* and *Gardenia jasminoides*, and lays a layer of dry weeds consisting of sugarcane bagasse, miscanthus, and *Digitaria sanguinalis* under the trees. Artificially cultivated fruiting bodies about to open their gills are placed under the trees as a live spore source for spore production. After spore production, the understory is covered with dry weeds and watered. The following year, after fruiting, some fruiting bodies are retained for natural spore production, achieving a single inoculation and multi-year cyclical fruiting. This invention creatively utilizes fruiting body spores for natural inoculation, replacing the traditional direct mycelial inoculation method. It boasts a high success rate of establishment, low long-term production costs, and represents a highly efficient forest-fungus integrated management model.

The invention provides a weeding composition containing flazasulfuron and sulfometuron methyl as well as a suspending agent dosage form and application of the weeding composition. After flazasulfuron and sulfometuron methyl are compounded, the lasting period can be prolonged to several months and even more than one year; the weeding spectrum is expanded, the control effect on weeds such as digitaria sanguinalis, acalypha australis, eleusine indica and moleplant seeds is improved, and the control varieties of perennial weeds are increased; compared with a single agent, the compounding can reduce the use amount of effective components and improve the safety to lawns.

The invention discloses a folium artemisiae argyi endophytic diplodia mediterranean strain AY7B and application thereof in weed control, and belongs to the field of microorganisms. The strain is separated from healthy and disease-free folium artemisiae argyi, is preserved in the China General Microbiological Culture Collection Center (CGMCC) on November 11, 2024, has the preservation number of CGMCC NO.41594, and is classified and named as bicognia mediterranean. The strain is named as bicognia mediterranean, and the strain is named as bicognia mediterranean. Two herbicidal active substances, namely fermentation liquor and solid fermentation extract, prepared by taking the strain as a core have inhibition effects on seed germination and seedling growth of common weeds such as digitaria sanguinalis and amaranthus viridis, and the inhibition rates on roots and buds of amaranthus viridis respectively reach 91.0% and 94.6%. The application provides a landing scheme for the development of a novel microbial herbicide, and has both environmental safety and industrialization potential.

The invention discloses a cyhalofop-butyl-resistant digitaria calorata MYB transcription factor gene and application thereof, and relates to the field of plant genetic engineering, and the expression of the gene in a resistant digitaria calorata biological type is remarkably up-regulated. After a plant expression vector is constructed and corn is transformed, after 11.25 g a.i. Ha-1 cyhalofop-butyl is sprayed on a transgenic corn plant in a 2-leaf stage, the pesticide resistance and the survival rate are obviously enhanced, and the transgenic corn plant is obviously superior to a wild type. The invention proves that the MYB gene can endow plants with resistance to acetyl-coenzyme A carboxylase (ACCase) inhibitor herbicides such as cyhalofop-butyl and the like, provides a new gene resource for cultivating transgenic crops resisting the acetyl-coenzyme A carboxylase (ACCase) inhibitor herbicides, and has important application value.

The invention discloses an N-phenyl phthalimide compound containing a nicotinic acid fragment and an ester group structure as well as a preparation method and application of the N-phenyl phthalimide compound, and belongs to the field of herbicides. The technical problem that existing herbicides cannot give consideration to both herbicidal activity and use safety is solved. The structural general formula of the compound is shown as a formula (I) or a formula (II), wherein the formula (I) and the formula (II) are shown in the specification. The N-phenyl phthalimide compound containing the nicotinic acid fragment and the ester group structure provided by the invention has good inhibitory activity on PPO. The herbicidal composition has especially excellent herbicidal activity on morning glory, digitaria sanguinalis, amaranthus retroflexus, abutilon fiber and other weeds, especially has an excellent effect on dicotyledonous weeds, and the control effect is even superior to that of some commercially available commercial herbicides. The compound can be used as a PPO inhibitor. The weeding composition can also be prepared into a weeding agent for preventing and controlling crop weeds.