E3S Web of Conferences (Jan 2021)

Evaluating Multispectral Imaging for Assessing Bacterial Leaf Blight Damage in Indonesian Agricultural Insurance

  • Giamerti Yuti,
  • Hongo Chiharu,
  • Saito Daiki,
  • Caasi Oliver,
  • Nur Susilawati Pepi,
  • Shishido Masahiro,
  • Sudiarta I Putu,
  • Sutrisna Wijaya I Made Anom,
  • Homma Koki

DOI
https://doi.org/10.1051/e3sconf/202123203008
Journal volume & issue
Vol. 232
p. 03008

Abstract

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Bacterial Leaf Blight (BLB) is one of the main diseases in Indonesia that causes a 90% reduction in grain weight. Multispectral imaging may be used as a quick and effective method for damage assessment and is expected to utilize on agricultural insurance in Indonesia. Data were collected at the rainy season and dry season 2018 in Farmers rice field at Bali Province. Vegetation indices (NDVI, GNDVI, and VARIred-edge) was analyzed using QGIS 2.18 from multispectral images. Some vegetation index shows positive correlation with SPAD and negative correlation with DSI (%). VARIred-edge has a higher relationship with DSI (R2: 0.8443) than NDVI (R2: 0.8291) and GNDVI (R2: 0.5463) at the average value on each location, but the relation seems to be affected by that relation between SPAD and LAI. Further data and analysis are required.