Naslov
Monitoring drought stress in common bean using chlorophyll fluorescence and multispectral imaging

Autori
Javornik, Tomislav ; Lazarević, Boris ; Carović- Stanko, Klaudija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
International Conference on Biodiversity and Molecular Plant Breeding / Goreta Ban, Smiljana ; Šatović, Zlatko / - , 2022, 24-24

Skup
International Conference on Biodiversity and Molecular Plant Breeding

Mjesto i datum
Novigrad, Hrvatska, 02.10.2022. - 06.10.2022

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
drought, common bean, chlorophyll fluorescence, multispectral imaging

Sažetak
Drought is a significant constraint in bean production, as about 60% of beans are grown in regions with water shortages. In this study, we used high throughput phenotyping (chlorophyll fluorescence imaging, multispectral imaging, 3D multispectral scanning) to continuously monitor the development of drought-induced morphological and physiological symptoms of water deficit. This experiment aims to select the most drought- sensitive plant phenotypic traits which could be used for early detection of drought stress and screening for drought tolerance among common bean genotypes. The experiment consisted of four treatments with ten plants each. Plants were grown in control (fully irrigated sand) and three water deficit treatments (irrigated with 70 mL, 50 mL, and 30 mL of distilled water, respectively). All measurements were performed on five consecutive days, and the last measurement was on the 8-th day of the experiment. The earliest detected symptoms were found on the fourth day of the experiment when a reduction in digital volume, total leaf area, and leaf area index was determined in treatments with 30 mL and 50 mL compared to control and 70 mL. In addition to morphological changes on the fourth day of the experiment, drought-induced treatments caused significant changes in several multispectral traits (specific green and saturation). Chlorophyll fluorescence traits showed to be less affected by drought, and significant changes were found only after prolonged drought stress.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Poljoprivreda (agronomija), Biotehnologija

POVEZANOST RADA