| Digital Agriculture has become one of the supporting technologies of agricultural information development strategy in the 21st century. From the realities of agricultural production, farm management and agricultural scientific study, it quantifies and digital all aspects of agriculture accurately. It can provide a basic working platform for over all agricultural scientific management and rational decision.Sericulture is one of the traditional advantage industries in China.With the development of the society,economy and scientific technology, sericulture faces with scientific,information technology, efficient challenges.Spectroscopy technology is an importantl tool for digital agriculture research. Recently abundant successful experience has been obtained by spectroscopy technology in some crops with their relevant characteristics,but the reports about silkworm egg or mulberry have not yet. Series of studies and explor in have been done about the application of spectroscopy technology in silkwowm eggs and mulberry leaves in this thesis,and laid a foundation for the arrival of digital sericulture.The main conclusions were as follows:(1)Based on the statistical analysis in the SPAD502 chlorophyll meter measurement results of different position and varieties of mulberry leaves,those two factors on the SPAD value demonstrated significant differences.(2) Relationship about the SPAD value and chlorophyll content for 9 varieties of mulberry leaves was established, while the regression models were given.The result showed that the correlation coefflation had great difference in the 9 varieties. SPAD 502chlorophyll meter was used in this research to analyze the variability of chlorophyll content during the growth stage of mulberry leaves.SPAD502 were studied using the same leaves,different branches of the same plant. Arc View 3.2 was used to show SPAD value of the distribution in leaves of 6 varieties image.The results indicated that in a same leaf measuring different position had different SPAD value.SPAD value of one mulberry leaf from Heyebai was tracked the in spring and autumn, while the same time for silkworm werw fed with mulberry leaves.The vaule had growth trend as time went by. For practical use, the SPAD value in different varieties of mulberry leaves should have some significance to correct the real value.(3) According to the geometry principle, ASD Vis/NIR spectroscope equipment was analysised for its parameter.The effects of the hight, the save number and the scanning number of the equipment to silkworm eggs calibration models were investigated.With the same area of measurement size situation, three different condition had carried on the statistical analysis by ABS.Different hight had the extremely remarkable difference,but the save number and the scan number then the difference was not remarkable.According to experimented request,30 scan numbers,save 3 times of parameters were selected and carried on to get the workable height.2 varieties of silkworm eggs were carried on the comparison to the establishment model.The result showed the height taken 8cm was the fittest parameter.(4) Analysis Near infrared spectra of the acquisition over the silkworm eggs for hatching ration. Statisccal analysis showed that Near infrared spectra of silkworm eggs hatchability had no significant difference with the one without reflacted.It proved that the Near infrared spectra of silkworm eggs vitality no significant damage.It laid the groundwork for the use of the technology in sericulture production and testing of practical application.(5)Using Vis/NIR spectrometer for refrigerated silkworm eggs and Hibernated silkworm eggs to identify the place and varieties.Both of the two type of silkworm eggs had a high correlation coefficient by PLS calibration model of NIR spectra t(R=0.946,R=0.949),and the correlation coefficient of the prediction was also high(R=0.872,R=0.941).The Vis/NIR spectroscopy could identify the location of silkworm. Similarly, the identification of varieties,refrigerated types of correlation coefficientswas more than 0.964 and the predict coefficient was above 0.938.The spring-produced silkworm eggs for next spring rearing correction coefficient was over 0.966 and the forecast sample correlation coefficients was more than 0.968.It proved that Vis/NIR spectroscopy can be used to identify the species of silkworm.The result could correctly identify the authenticity of the silkworm eggs.It also could work on during the quality production for the production of silkworm nondestructive rapid identifications.(6) The NIRS reflectance property of the different development stages for the eggs of main hybrids before taken out the refrigerator was followed and investigated. The different embryonic development of the eggs could accurately be identified by means of the mathematical models.The embryonic development, which the naked eye could not be found, was made into the digital information transformation.The egg development after the incubation was determined with the daily tracking spectrum, from which it was found different spectral characteristics in different embryonic development stages,which could be determined by setting up the mathematical model,that gave a new technique for the inspection of the embryonic development during the incubation in the future.(7)The management system of silkworm eggs and mulberry correlation NIR was established. Network version and the PC version of the system could fit for the research and production units,personal inquiries.It will promote the Near Infrared Spectroscopy technology in the development of sericulture.
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