3 results about "Setaria" patented technology

The application provides application of a CAPS molecular marker GW18 in identification of foxtail millet (Setaria italica) resistance to rice blast, and belongs to the technical field of molecular marker breeding. The application provides the application of the CAPS molecular marker GW18 in identification of the foxtail millet resistance to the rice blast, and G / T polymorphism exists at 34523782 bp of the 6th chromosome of the foxtail millet; when the polymorphism is G, the resistance to the rice blast cannot be recognized by a restriction enzyme, and is identified as the susceptibility to the rice blast; when the polymorphism site is T, the GW18 target sequence can be recognized by the restriction enzyme and is cut into two segments, and is identified as the resistance to the rice blast. The marker has a high co-separation rate with the disease resistance, a rapid, accurate and low-cost detection method, and can be used for rapid identification of foxtail millet germplasm resources resistant to the rice blast and molecular marker assisted breeding, and has important significance for improving breeding efficiency and guaranteeing safe production of the foxtail millet.

The invention discloses diphosphonic acid and a salt compound thereof, a preparation method and application. The structural formula of the bisphosphonic acid and the salt compound thereof is shown as a formula (I). According to the preparation method, methyl (3-oxopropyl) phosphinic acid is taken as an initial raw material, a target product [1-hydroxy-3-(methylphosphonyl) propyl]-methylphosphinic acid is prepared through condensation and hydrolysis two-step reaction, and the target product reacts with an alkaline substance to obtain corresponding salt. The obtained target product has a bisphosphonic acid skeleton, and the bisphosphonic acid herbicide lead compound with a novel structure is beneficial to improving the weed removal effect; meanwhile, the target product is salified to obtain a salt compound, the salt compound is used for preparing herbicides for preventing and controlling green bristlegrass, amaranthus retroflexus, chenopodium album and other weeds, the obvious weeding effect is achieved, the water solubility, hygroscopicity, stability and the like of the compound can be changed by preparing the salt compound into the salt, and therefore different preparation requirements are met.

The application discloses a kind of bisphosphonic acid and its salt compound, preparation method and application.The structural formula of the bisphosphonic acid and its salt compound is as shown in formula (I).The preparation method is to prepare target product [1-hydroxy-3-(methyl phosphine acyl) propyl]-methyl hypophosphorous acid by condensation and hydrolysis two-step reaction with methyl (3-oxo propyl) hypophosphorous acid as starting material, and the target product is reacted with basic substance to obtain corresponding salt.The target product obtained by the application has bisphosphonic acid skeleton, and the novel bisphosphonic acid herbicide lead compound is beneficial to improve weed removal effect;Meanwhile, the salt compound obtained by salifying the target product is used to prepare herbicide for preventing and treating setaria viridis, amaranthus retroflexus, small gooseweed and other weeds, and has obvious weeding effect, and preparing salt can improve water solubility, hygroscopicity, stability and the like of the compound, so as to adapt to different formulation requirements.