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Open Access Influence of Temperature, Light and Salt on the Germination of Deverra Triradiata Seeds

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Deverra triradiata is a perennial glycophytic shrub that grows on coastal sandy dunes in the Arabian Gulf region. Understanding the seed germination response to environmental conditions is essential for assessing the potential use of seeds of this species in the rehabilitation of degraded and endangered terrestrial ecosystems. The germinability of D. triradiata seeds under different temperature, light and salinity conditions was evaluated. Our results showed that D. triradiata seeds could germinate equally well under light and complete darkness. However, germination was reduced significantly at 30/20°C compared with 25/15°C, indicating that the lower temperature is more appropriate for obtaining better seed germination. The highest germination was obtained under non-saline conditions (0 mM NaCl) and increasing salinity (above 100 mM NaCl) progressively inhibited seed germination. Only a few seeds were able to recover their germinability when transferred to distilled water, highlighting the seed sensitivity to salt during germination.

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Keywords: DESERT; DEVERRA SPP; GLYCOPHYTES; RESTORATION; SALINITY; SEED GERMINATION; TEMPERATURE

Document Type: Research Article

Publication date: April 1, 2019

This article was made available online on March 9, 2019 as a Fast Track article with title: "Influence of temperature, light and salt on the germination of Deverra triradiata seeds".

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  • Seed Science and Technology (SST) is one of the leading international journals featuring original papers and review articles on seed quality and physiology as related to seed production, harvest, processing, sampling, storage, distribution and testing. This widely recognised journal is designed to meet the needs of researchers, advisers and all those involved in the improvement and technical control of seed quality.
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