Sentinel-2 Satellite Imagery for Agronomic and Quality Variability Assessment of Pistachio ( Pistacia vera L.)

Enrique Barajas, Sara Álvarez, Elena Fernández, Sergio Vélez, José Antonio Rubio and Hugo Martín
Additional contact information
Enrique Barajas: Instituto Tecnológico Agrario de Castilla y León. Ctra. Burgos km 119, 47071 Valladolid, Spain
Sara Álvarez: Instituto Tecnológico Agrario de Castilla y León. Ctra. Burgos km 119, 47071 Valladolid, Spain
Elena Fernández: Instituto Tecnológico Agrario de Castilla y León. Ctra. Burgos km 119, 47071 Valladolid, Spain
Sergio Vélez: Instituto Tecnológico Agrario de Castilla y León. Ctra. Burgos km 119, 47071 Valladolid, Spain
José Antonio Rubio: Instituto Tecnológico Agrario de Castilla y León. Ctra. Burgos km 119, 47071 Valladolid, Spain
Hugo Martín: Instituto Tecnológico Agrario de Castilla y León. Ctra. Burgos km 119, 47071 Valladolid, Spain

Sustainability, 2020, vol. 12, issue 20, 1-12

Abstract: The objective of this work is to evaluate the agronomic, phenological, nutritional quality and organoleptic characteristics of pistachios ( Pistacia vera L.) based on the NDVI (Normalized Difference Vegetation Index) calculated in the phenological stage of nut filling from Sentinel satellite imagery. Based on this index, three pistachio tree orchards were studied and classified into two levels of vigour: high and low. The results obtained have discriminated the production per tree, which is strongly related to yield. Regarding the nutritional quality parameters, significant differences were not observed between vigour levels, although the most vigorous trees have shown nuts with a higher percentage of fibre and protein. In terms of phenology, there have not been differences between trees of different vigour, only a slight advance of some phenological stages has been observed in several high-vigour trees. Triangular tests have been made successfully to discriminate the origin of the dry nut and the vigour of the trees. In conclusion, for a given nut quality within a given orchard, the NDVI is a good index to classify different areas according to productive capacity and can be useful to apply variable management, irrigation and fertilization according to vigour.

Keywords: Sentinel 2; NDVI; pistachio; vigour; nutritional quality (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/12/20/8437/pdf (application/pdf)
https://www.mdpi.com/2071-1050/12/20/8437/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:20:p:8437-:d:427354

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().