DETERMINATION OF SALT STRESS IN CUCUMBER PLANTS USING VNIR SPECTROSCOPY


SÖNMEZ N. K., ASLAN G. E., KURUNÇ A.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.30, no.8, pp.9653-9661, 2021 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 8
  • Publication Date: 2021
  • Journal Name: FRESENIUS ENVIRONMENTAL BULLETIN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Aerospace Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Environment Index, Geobase, Greenfile, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.9653-9661
  • Keywords: Remote sensing, cucumber, spectroradiometer, irrigation water salinity, LEAF CHLOROPHYLL CONTENT, SPECTRAL REFLECTANCE, VEGETATION, RESPONSES, SALINITY, INDEXES
  • Akdeniz University Affiliated: Yes

Abstract

The objective of the study was to determine the energy use of the cucumber plant grown under different irrigation salinities by spectroradiometric measurements obtained for the different wavelength range of electromagnetic spectrum (EMS). The study was carried out as a randomized complete block experimental design in lysimetcr pots in a controlled greenhouse environment. Five different salinity levels of irrigation water were used and each treatment was repeated five times. Throughout the experiment, weekly spectral measurements were collected on leaves by using a handheld spectroradiometer capable of measuring a range of 330-1075 nm EMS, In the study, specific wavelength range and index calculations were used to reveal the stress situation of the plant. The results showed that it is possible to determine the plant stress conditions caused by saline irrigation water on cucumber in the 8th, 6th and 8th week of the growing period by obtaining blue, green and red wavelength measurements, respectively. Also, salinity stress of cucumber plant can be determined in the 6th week by using Normalized Difference Vegetation Index (NDVI) and Vegetation index (VI) and 9th week for Salinity Index (SI). These results reveal that NDVI and VI index calculations are useful parameters in determining salinity stress of cucumber plant.