3 results about "Germ tube" patented technology

The application discloses use of an extract of black tiger in preparation of a fungicide for preventing and treating plant diseases caused by pathogenic fungi and oomycetes. The black tiger extract has the effects of inhibiting spore germination, germ tube growth or zoospore formation, and vegetative hypha growth of the fungi and oomycetes, can effectively prevent growth of the pathogenic fungi and infection on host plants, and has certain prevention and treatment effects on rice rice blast, rice rice smut, potato late blight, cucumber anthracnose, grape anthracnose, corn ear rot, pepper blight and camphor blight, and provides a possibility for development of a plant source fungicide with diversified effective components, high prevention and treatment efficiency and a wide spectrum of prevention and treatment objects.

The application discloses a kind of egg worm grass special environment climate incubator and process method thereof, belong to the technical field of fungi cultivation, including the following steps: the bird egg inoculated with cordyceps strain is placed in incubator, the temperature in the box is controlled to be the temperature of colonization, humidity is the humidity of colonization, close illumination and send air with the wind speed of colonization, so that cordyceps spore is oriented to germinate inside bird egg;Real-time monitoring of carbon dioxide concentration in the box, dynamically adjust temperature, humidity and ventilation frequency according to the comparison result of monitoring value and multiple preset concentration threshold, so that mycelium proliferates in bird egg;By constructing directional airflow coupling carbon dioxide dynamic feedback control mechanism, the eggshell micro-domain gas environment is fundamentally optimized, low-speed directional air supply forms stable water vapor pressure difference and oxygen concentration gradient on both sides of eggshell stoma, guiding spore germ tube to invade unidirectionally along stoma channel.

This invention discloses a method and system for constructing crop disease models based on the coupling of multiple environmental factors, belonging to the field of smart agriculture and plant protection technology. The method includes: acquiring environmental data, soil data, crop data, and pathogen data; calculating the spore attachment success rate based on the pathogen data; dividing the spore infection process into four stages: dormancy, germination, germ tube, and infection spike stage, constructing an infection state machine model to maintain the spore stage state and calculate germination progress and cumulative infection values, thereby calculating the infection activity output; calculating water stress development correction coefficients, nutrient stress development correction coefficients, pesticide application pathogen mortality correction coefficients, and carbon dioxide content stress correction coefficients based on soil and crop data; and multiplying the spore attachment success rate, infection activity output, and multiple correction coefficients to obtain the disease risk value. This invention enables the reuse of a single model framework for multiple diseases, significantly reducing the development cycle and cost of new disease models.