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Open AccessArticle

Influence of SDHI Seed Treatment on the Physiological Conditions of Spring Barley Seedlings under Drought Stress

1
Department of Agronomy, Poznań University of Life Sciences, 11 Dojazd St., 60-632 Poznań, Poland
2
Institute of Food Technology of Plant Origin, Poznań University of Life Sciences, 31 Wojska Polskiego St., 60-624 Poznań, Poland
3
Department of Finance and Accounting, Poznań University of Life Sciences, 28 Wojska Polskiego St., 60-637 Poznań, Poland
4
Department of Entomology and Plant Pathology, Institute of Agriculture, University of Tennessee, 363 Plant Biotechnology Building, 2505 EJ Chapman Drive, Knoxville, TN 37996-4560, USA
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(5), 731; https://doi.org/10.3390/agronomy10050731
Received: 28 April 2020 / Revised: 13 May 2020 / Accepted: 18 May 2020 / Published: 19 May 2020
(This article belongs to the Special Issue Drought Resistance Mechanisms in Crops)
Seed treatments help reduce the pathogen load and thus improve the condition of plants from their earliest developmental stages, but they can have impacts beyond their basic fungicide protection role. In this study, we investigated how seven spring barley seed treatments affected the plants’ physiological state. The tested seed treatments differed significantly in their impacts on the vigor parameters of barley seeds and on the physiological state of seedlings under drought stress and after regeneration. Seed treatments based on substances from the succinate-dehydrogenase-inhibitors (SDHI) group did not cause inhibition of seedling growth and also display by the highest vigor index values. Using the analysis of photosynthesis-related parameters, we showed that seed treatments from the SDHI group provided a superior tolerance of the imposed drought in spring barley than other treatments. In addition to protection against abiotic stress, SDHI treatments also rendered a higher efficiency of photochemical reactions in the treated plants. View Full-Text
Keywords: abiotic stress; chlorophyll fluorescence; fluorescence; Hordeum vulgare L.; photosynthesis; succinate-dehydrogenase-inhibitor abiotic stress; chlorophyll fluorescence; fluorescence; Hordeum vulgare L.; photosynthesis; succinate-dehydrogenase-inhibitor
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MDPI and ACS Style

Radzikowska, D.; Grzanka, M.; Kowalczewski, P.Ł.; Głowicka-Wołoszyn, R.; Blecharczyk, A.; Nowicki, M.; Sawinska, Z. Influence of SDHI Seed Treatment on the Physiological Conditions of Spring Barley Seedlings under Drought Stress. Agronomy 2020, 10, 731.

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