Application of spore catcher in measuring wheat powdery mildew
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Product
Thickness(mm)
Size(mm)
Color
Density(g/cm³)
PC SHEET
15-120
610*1000
clear/black
1.2
15-120
1000*2000
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Monitoring of the weather system. This is the key to the entire forecast. It mainly monitors the cold wave transit, changes of the southwest air flow, shear lines on the weather maps of 85000 and 70000Pa, and the ground rain area, which are conducive to remote sensing and landing of the weather system in order to analyze the possible arrival time and area of ​​the buzzer; The preliminary stage of wheat powdery mildew in each area of ​​the basin and the foundation for the development of the disease condition in the basin.
Computer processing. First, the incubation period after the spores reach the destination. The calculation procedure is based on the subroutine sub-programming subroutine in the "Powder Powdery Field Model of Wheat Epidemic Model". The other Nazao is related to storage Data to provide information at the time of calculation and later analysis.
In the study of the epidemic dynamics of wheat powdery mildew disease, most of the prediction models use the past meteorological elements, combined with the disease occurrence and development data to build prediction models. Such predictions are often more reliable in detecting historical conditions, but they are difficult to predict. In the Sichuan Basin, the key to the occurrence and development of wheat powdery mildew is the problem of the amount of exogenous bacteria. Only considering the weather and disease history data can not solve the problem. The MPMSB model is based on the study of the initial source of powdery mildew. It provides a new way of thinking for the propagation of remote diseases. Spore catcher in the use of the spore catcher for the collection of spore powder in wheat, find type in Sichuan Basin powdery mildew epidemic is more accurate, but the prediction period has some errors. There are still some technical problems, such as: After the snophore reaches the “target†area, it infects the host under appropriate conditions, and it is lurking (the central disease strain appears), but the central disease strain will not be immediately discovered, and may go through two It can be found only after re-infection three or more times. Therefore, from the time of the onset of infection to being discovered, there is a large range of changes in time. How to determine this period of time requires further study.