9 results about "Cyperaceae" patented technology

The present application relates to a kind of herbicidal composition of pyrimisulfan and its preparation method and application scheme, including active ingredient (A) pyrimisulfan or its salt, (B) quinclorac or its salt and (C) carfentrazone-ethyl or its salt, the weight ratio of each active ingredient is (1-24):48:(1-24), the total weight of active ingredient is 1% to 70% of the total weight percentage of herbicidal composition.Excellent activity is shown to a variety of grass weeds, broadleaf weeds and sedge weeds, such as barnyard grass, crabgrass, knotweed, pigweed, shepherd's purse, and cyperus rotundus, in warm-season turf, while the synergistic effect is significant, not only improves the effect of weeding, but also expands the control spectrum, while reducing the number of applications, reducing environmental pressure, reducing the use of pesticides and costs, and delaying the development of resistance.

The invention provides a weeding composition containing dithiopyr and diflufenican as well as a preparation method and application thereof, and belongs to the field of pesticides, the composition comprises dithiopyr, diflufenican, a dispersing agent, a wetting agent, a thickening agent, an anti-freezing agent, a defoaming agent and water, dithiopyr and diflufenican are effective components, and the wetting agent is a mixture of dithiopyr and diflufenican. The range of the mass ratio of dithiopyr to diflufenican is (1: 1)-(1: 4); the weeding composition provided by the invention is efficient, low in toxicity and long in lasting period, is beneficial to reduced use of paddy field herbicides, and has a relatively good control effect on gramineae, cyperaceae and broadleaf weeds in a direct seeding paddy field.

The present invention relates to the field of agrochemicals, and in particular to a tetflupyrolimet-containing herbicidal composition and a use thereof. The composition comprises a herbicidally effective amount of active ingredient A and active ingredient B, wherein the active ingredient A is tetflupyrolimet, and the active ingredient B is selected from one or more of the following compounds or acids / esters / salts thereof: bixlozone, [Formula 1], and [Formula 2]. The composition can effectively control Poaceae, Cyperaceae, broadleaf weeds, and the like, and has the characteristics of expanding the weed control spectrum, reducing the amount of application, generating a synergistic effect, solving the problem of resistant weeds, and the like.

The invention belongs to the field of pesticides, and particularly relates to a weeding composition and application thereof. The composition comprises an active component A and an active component B with effective weeding amounts, the active ingredient A is an active ingredient B, and the active ingredient B is selected from one or more of diflufenican, diflufenican, fluridone, toprazole fluridone, saflufenacil, flumioxazin and sulfentrazone. The composition can be used for effectively preventing and removing the problems of gramineous weeds, cyperaceae weeds, broadleaf weeds and the like; the herbicide composition has the characteristics of expanding the herbicide controlling spectrum, reducing the application amount, generating a synergistic effect, solving resistant weeds and the like.

The application discloses a SYBR Green fluorescent quantitative PCR method for identifying Cyperus esculentus components based on a Ce44 gene and application thereof, and establishes a specific and high-sensitivity Cyperus esculentus component detection method by using a single copy gene of a Cyperus esculentus plant genome as a marker gene based on a SYBR Green real-time fluorescent quantitative technology.The method can accurately distinguish the Cyperus esculentus from four Cyperaceae plants and other 12 representative plants, and can accurately determine whether the six food samples on the market contain the Cyperus esculentus component.The specific real-time fluorescent quantitative PCR detection method for the Cyperus esculentus established by the application can provide a technical reference for qualitative and quantitative detection of the Cyperus esculentus component in Cyperus esculentus products.

The present invention relates to a chloroplast genome sequence-based SNP marker composition for distinguishing sedges and the use thereof. Since the SNP marker of the present invention can accurately distinguish sedges, which are sedge family plants, from similar species, it can improve the accuracy of species identification of sedge family plants that are difficult to distinguish morphologically, and can maintain a certain level of reliability as it is based on chloroplast genome information and is not affected by changes in the external environment.

The application discloses a sedge plant extract with antiviral activity, a preparation method and application thereof, wherein the sedge plant is at least one of brick seed, broken rice sedge, broken joint sedge, raw fragrant cyperus, mountain bennet, one arrow ball, Jing Sanleng, water centipede, water chestnut and oil sedge beans. The sedge plant extract is obtained by alcohol extraction, water extraction or ethyl acetate extraction of the sedge plant to obtain an extract, and then the extract is dried to obtain the sedge plant extract. Experiments prove that the sedge plant extract provided by the application has significant inhibitory activity on multiple viruses such as herpes virus, vaccinia virus, adenovirus, influenza virus, coronavirus, enterovirus, respiratory syncytial virus, Zika virus, dengue virus and bunyavirus. Therefore, the sedge plant extract provided by the application can be used for preparing a pharmaceutical composition for preventing and / or treating viral infection, and can also be used for preparing health food, functional food or dietary supplements. The application has a wide application prospect.

The application belongs to the technical field of pesticide weeding, and discloses a weeding composition and application. The active ingredient of the weeding composition comprises active ingredient A and active ingredient B. The active ingredient A is icafolin, the active ingredient B is any one of pyrazosulfuron-ethyl or bensulfuron-methyl, and the mass ratio of the active ingredient A to the active ingredient B is 1:8-30:1. The weeding composition disclosed by the application expands the herbicidal spectrum, has excellent control effect on common broadleaf weeds, gramineous weeds and sedge weeds in rice fields, and is safe to rice.

The present application belongs to the field of pesticides, and particularly relates to a herbicidal composition containing tetrafluorobenzalam and application thereof. The composition comprises a herbicidal effective amount of active ingredient A and active ingredient B, wherein the active ingredient A is tetrafluorobenzalam; the active ingredient B is selected from one or more of the following compounds or one or more of the acid / ester / salt thereof: propachlor, bensulfuron-methyl, anilofos, tefuryltrione, fenoxasulfone, furilazole, acetochlor, oxadiazon, oxadiargyl, pentoxazyl, oxyfluorfen, mesotrione, bicyclopyrone, furametpyr, etc. The composition can effectively prevent and control the problems of gramineae, cyperaceae, broadleaf weeds, etc., has the characteristics of expanding the herbicidal spectrum, reducing the application amount, being able to produce a synergistic effect and solving the problem of resistant weeds, etc.