publication . Article . Other literature type . 2020

Chlorophyll Fluorescence Kinetics May Be Useful to Identify Early Drought and Irrigation Effects on Photosynthetic Apparatus in Field-Grown Wheat

Lenka Botyanszka; Marek Zivcak; Erik Chovancek; Oksana Sytar; Viliam Barek; Pavol Hauptvogel; Andrej Halabuk; Marian Brestic;
Open Access English
  • Published: 28 Aug 2020 Journal: Agronomy, volume 10, issue 1,275 (issn: 2073-4395, Copyright policy)
  • Publisher: MDPI AG
Abstract
To assess the reliability and sensitivity of non-invasive optical methods to detect the early effects of water deficit in the field, we analyzed the time-series of non-invasive measurements obtained in a dry season in a representative collection of wheat genotypes grown in small-plot field trials, in non-irrigated and irrigated variants. Despite a progressive water deficit and significant yield loss, the measurements indicated very minor changes in chlorophyll content or canopy cover. This corresponded well to the insignificant differences in spectral reflectance normalized difference vegetation index (NDVI) values. On the other hand, we identified the significa...
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free text keywords: chlorophyll fluorescence, spectral reflectance, drought, stress, phenotyping, wheat, performance index, chlorophyll fluorescence, performance index, phenotyping; wheat, stress, spectral reflectance, drought, Agronomy and Crop Science, lcsh:Agriculture, lcsh:S, Normalized Difference Vegetation Index, Canopy, Photosynthesis, Photosystem I, Environmental science, Chlorophyll fluorescence, Absorbance, Dry season, Agronomy, Irrigation
Funded by
EC| ECOBREED
Project
ECOBREED
Increasing the efficiency and competitiveness of organic crop breeding
  • Funder: European Commission (EC)
  • Project Code: 771367
  • Funding stream: H2020 | RIA
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