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Chinese Agricultural Science Bulletin ›› 2013, Vol. 29 ›› Issue (16): 84-89.doi: 10.11924/j.issn.1000-6850.2012-3622

Special Issue: 园艺

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Response of spectral characteristics to biochemical parameters under the stress of tomato yellow leaf curl virus

  

  • Received:2012-11-06 Revised:2012-12-20 Online:2013-06-05 Published:2013-06-05

Abstract: In this study, we analyzed the change trend of biochemical parameters, vegetation indices and spectral reflectance characteristic between susceptible and resistant varieties of tomatoes under the stress of tomato yellow leaf curl virus stress. The significances of biochemical parameters, vegetation indices and spectral reflectance characteristic were tested. All the biochemical parameters including lignin, PPO, PAL, TAL, total phenols were increased according to sampling time. The significance test showed that the spectral reflectance characteristic containing the reflectance at 480 nm, 552 nm and 680 nm, NDVI, GNDVI, BNDVI, GRNDVI, GBNDVI, RBNDVI, PNDVI had significant difference. Normalized correlation analysis was used to analysis the correlation among vegetation indices, spectral reflectance characteristic and biochemical parameters. The results showed that the best fitting between the lignin and spectral reflectance characteristic (vegetation indices, spectral reflectance), which included RVI, NDVI, GRNDVI, GNDVI, GBNDVI, RBNDVI, PNDVI and spectral reflectance at 480nm and 552 nm.