Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 1080046

Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress


Oletić, Dinko; Rosner, Sabine; Zovko, Monika; Bilas, Vedran
Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress // Computers and electronics in agriculture, 178 (2020), 105797, 19 doi:10.1016/j.compag.2020.105797 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 1080046 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress

Autori
Oletić, Dinko ; Rosner, Sabine ; Zovko, Monika ; Bilas, Vedran

Izvornik
Computers and electronics in agriculture (0168-1699) 178 (2020); 105797, 19

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Precision irrigation ; Drought stress ; Grapevine ; Acoustic emission testing ; Time-frequency analysis

Sažetak
In cultures like grapevine, growth, yield and fruit quality depend on precise regulation of water stress using precision irrigation. In arid climates with seasonal droughts, karst areas and porous stony soils it is difficult to assess irrigation thresholds only based on soil water balance, requiring novel, plant-based techniques of early drought stress detection. In plants, water stress causes an increase in evapotranspiration rate, subjecting the water in the xylem conduits to high tension. This creates cavitations, leading to xylem embolization, loss of hydraulic conductivity and possibly plant death. A promising emerging technology for automated, non-invasive field monitoring of xylem cavitations is acoustic emission (AE) testing. Passive piezoelectric sensors on trunk are used to capture intermittently appearing AE, occurring in ultrasonic frequency-band from 100 kHz to 1 MHz. To make AE suitable as an input for precision irrigation, we present a novel AE time-frequency feature set for discrimination between normal and drought stress conditions. The proposed feature extraction method entails software-compensation of sensor's frequency response, enabling the wide-band frequency- analysis with miniature resonant high-frequency piezoelectrics. The signal analysis revealed three characteristic groups of AEs, differentiated by their spectral composition: single-component, multi-component, and broadband AEs. In conditions of increased water stress, single-component emissions cluster around 200 kHz, and multi-component emissions group between 200 and 600 kHz, forming discriminant time-frequency signatures. The study entails an extensive set of laboratory pot-plant dehydration experiments on four different grapevine cultivars, verifying the selectivity, sensitivity and repeatability of the extracted feature set. It proved sensitive enough for detection of drought stress corresponding to moderate leaf water potentials ranging between −0.7 and −1.2 MPa.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo, Poljoprivreda (agronomija)



POVEZANOST RADA


Projekti:
HRZZ-IP-2016-06-8379 - Napredni senzorski sustavi za precizno navodnjavanje u krškom krajobrazu (SENSIRRIKA) (Bilas, Vedran, HRZZ ) ( CroRIS)

Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb,
Agronomski fakultet, Zagreb

Profili:

Avatar Url Monika Zovko (autor)

Avatar Url Dinko Oletić (autor)

Avatar Url Vedran Bilas (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com

Citiraj ovu publikaciju:

Oletić, Dinko; Rosner, Sabine; Zovko, Monika; Bilas, Vedran
Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress // Computers and electronics in agriculture, 178 (2020), 105797, 19 doi:10.1016/j.compag.2020.105797 (međunarodna recenzija, članak, znanstveni)
Oletić, D., Rosner, S., Zovko, M. & Bilas, V. (2020) Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress. Computers and electronics in agriculture, 178, 105797, 19 doi:10.1016/j.compag.2020.105797.
@article{article, author = {Oleti\'{c}, Dinko and Rosner, Sabine and Zovko, Monika and Bilas, Vedran}, year = {2020}, pages = {19}, DOI = {10.1016/j.compag.2020.105797}, chapter = {105797}, keywords = {Precision irrigation, Drought stress, Grapevine, Acoustic emission testing, Time-frequency analysis}, journal = {Computers and electronics in agriculture}, doi = {10.1016/j.compag.2020.105797}, volume = {178}, issn = {0168-1699}, title = {Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress}, keyword = {Precision irrigation, Drought stress, Grapevine, Acoustic emission testing, Time-frequency analysis}, chapternumber = {105797} }
@article{article, author = {Oleti\'{c}, Dinko and Rosner, Sabine and Zovko, Monika and Bilas, Vedran}, year = {2020}, pages = {19}, DOI = {10.1016/j.compag.2020.105797}, chapter = {105797}, keywords = {Precision irrigation, Drought stress, Grapevine, Acoustic emission testing, Time-frequency analysis}, journal = {Computers and electronics in agriculture}, doi = {10.1016/j.compag.2020.105797}, volume = {178}, issn = {0168-1699}, title = {Time-frequency features of grapevine’s xylem acoustic emissions for detection of drought stress}, keyword = {Precision irrigation, Drought stress, Grapevine, Acoustic emission testing, Time-frequency analysis}, chapternumber = {105797} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font