{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T08:05:48Z","timestamp":1772784348185,"version":"3.50.1"},"reference-count":76,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,10,27]],"date-time":"2020-10-27T00:00:00Z","timestamp":1603756800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002848","name":"Comisi\u00f3n Nacional de Investigaci\u00f3n Cient\u00edfica y Tecnol\u00f3gica","doi-asserted-by":"publisher","award":["11190360"],"award-info":[{"award-number":["11190360"]}],"id":[{"id":"10.13039\/501100002848","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>For more than ten years, Central Chile has faced drought conditions, which impact crop production and quality, increasing food security risk. Under this scenario, implementing management practices that allow increasing water use efficiency is urgent. The study was carried out on kiwifruit trees, located in the O\u2019Higgins region, Chile for season 2018\u20132019 and 2019\u20132020. We evaluate the time-series of nine vegetation indices in the VNIR and SWIR regions derived from Sentinel-2 (A\/B) satellites to establish how much variability in the canopy water status there was. Over the study\u2019s site, eleven sensors were installed in five trees, which continuously measured the leaf\u2019s turgor pressure (Yara Water-Sensor). A strong Spearman\u2019s (\u03c1) correlation between turgor pressure and vegetation indices was obtained, having \u22120.88 with EVI and \u22120.81 with GVMI for season 2018\u20132019, and lower correlation for season 2019\u20132020, reaching \u22120.65 with Rededge1 and \u22120.66 with EVI. However, the NIR range\u2019s indices were influenced by the vegetative development of the crop rather than its water status. The red-edge showed better performance as the vegetative growth did not affect it. It is necessary to expand the study to consider higher variability in kiwifruit\u2019s water conditions and incorporate the sensitivity of different wavelengths.<\/jats:p>","DOI":"10.3390\/ijgi9110641","type":"journal-article","created":{"date-parts":[[2020,10,27]],"date-time":"2020-10-27T09:22:45Z","timestamp":1603790565000},"page":"641","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Time-Series of Vegetation Indices (VNIR\/SWIR) Derived from Sentinel-2 (A\/B) to Assess Turgor Pressure in Kiwifruit"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2076-8768","authenticated-orcid":false,"given":"Alberto","family":"Jopia","sequence":"first","affiliation":[{"name":"H\u00e9mera Centro de Observaci\u00f3n de la Tierra, Escuela de Agronom\u00eda, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6896-8534","authenticated-orcid":false,"given":"Francisco","family":"Zambrano","sequence":"additional","affiliation":[{"name":"H\u00e9mera Centro de Observaci\u00f3n de la Tierra, Escuela de Agronom\u00eda, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3670-6190","authenticated-orcid":false,"given":"Waldo","family":"P\u00e9rez-Mart\u00ednez","sequence":"additional","affiliation":[{"name":"H\u00e9mera Centro de Observaci\u00f3n de la Tierra, Escuela de Ingenier\u00eda Forestal, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1836-5684","authenticated-orcid":false,"given":"Paulina","family":"Vidal-P\u00e1ez","sequence":"additional","affiliation":[{"name":"H\u00e9mera Centro de Observaci\u00f3n de la Tierra, Escuela de Ingenier\u00eda Forestal, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julio","family":"Molina","sequence":"additional","affiliation":[{"name":"Escuela de Agronom\u00eda, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Felipe","family":"de la Hoz Mardones","sequence":"additional","affiliation":[{"name":"Centro Especializado de Riego, Liceo Agr\u00edcola El Carmen\u2013SNA Educa, San Fernando 3070000, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,10,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1016\/j.ijsbe.2014.04.006","article-title":"Climate change and challenges of water and food security","volume":"3","author":"Misra","year":"2014","journal-title":"Int. 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