Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Differential Response of Linum Album Ky. ex Boiss. Accessions to Long-term Water Deficit Stress

Version 1 : Received: 5 October 2020 / Approved: 6 October 2020 / Online: 6 October 2020 (09:02:20 CEST)

How to cite: Kiani, R.; Nazeri, V.; Shokrpour, M.; Hano, C. Differential Response of Linum Album Ky. ex Boiss. Accessions to Long-term Water Deficit Stress. Preprints 2020, 2020100110 (doi: 10.20944/preprints202010.0110.v1). Kiani, R.; Nazeri, V.; Shokrpour, M.; Hano, C. Differential Response of Linum Album Ky. ex Boiss. Accessions to Long-term Water Deficit Stress. Preprints 2020, 2020100110 (doi: 10.20944/preprints202010.0110.v1).

Abstract

Linum album is an important medicinal plant contains important lignan compounds such as podophyllotoxin as well as fatty acids. Despite the high medicinal value, it has not been studied in agricultural conditions so far. This study was conducted to evaluate the morphological, phenological, and physiological responses of six L. album accessions under water deficit treatments (100% available water, 75%, 50%, and 25%) in pot conditions. Based on the results the morphological properties of accessions reduced due to water deficit. Accessions of UTLA7 and UTLA9 showed higher seed yield and dry weight of the vegetative part. The occurrence of phenological stages in the accessions showed a significant difference. Maturity was accelerated in plants under stress conditions, and accession of UTLA9 completed its growth earlier than others. Physiological responses of the accessions did not have the same trend based on the measured traits, and significant differences were observed depending on the trait and accession. The most important result of this study was the diversity of responses in different accessions. The results showed that the effect of water stress on the measured traits depends on the level of stress and accession, which suggests that it is possible to select the tolerable accessions for the production of the desired product. Based on the results, plant breeders may be able to use the chlorophyll content as a marker to identify tolerate L. album accessions.

Subject Areas

Abiotic stress; Linum album Ky. ex Boiss.; Morphological properties; Phenology; Pigments; Seed yield

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