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Publication Type J
Authors Hameed, A., A. El-Keblawy, M. Aljasmi, S. Gairola, S. S. Phartyal, K. A. Mosa and S. Soliman
Title Seed provenance, thermoperiod, and photoperiod affect low water potential tolerance during seed germination of the multipurpose exotic tree Prosopis juliflora
Source Journal of Arid Environments
Language English
Author Keywords Arid deserts Drought tolerance Seed germination Seed provenance Water potential Water stress salt tolerance temperature requirements maternal salinity light halophyte stress growth populations responses dormancy Environmental Sciences & Ecology
Abstract There is limited information about the importance of seed origin, thermoperiod, and photoperiod on low water potential tolerance during seed germination of habitat-indifferent plants, which grow well in saline and nonsaline habitats. This study examined the effects of seed provenance, water potential, thermoperiod, photoperiod, and their interactions on seed germination of the multipurpose exotic tree Prosopis juliflora. Seeds from saline and non-saline habitats were germinated under various water potential levels at different thermoperiods and photoperiods. Seeds could endure up to -1.5 MPa water potential irrespective of origin. Germination of seeds from saline habitats was higher than those from non-saline habitats in -1.5 MPa. At 0 and -0.3 MPa, seeds germinated in a thermoperiod-insensitive manner in light. At < -0.6 MPa, however, a higher thermoperiod was more inhibitory for germination. Seeds germinated better under dark than light conditions under low water potential and high thermoperiod. Most ungerminated seeds from different lower water potential treatments recovered their germination when transferred to distilled water. This study demonstrated that the low water potential tolerance of P. juliflora seeds depends on seed origin, thermoperiod, and photoperiod. These factors should be considered when selecting a seed lot for afforestation of P. juliflora in different soil types.
Author Address [Hameed, Abdul] Univ Karachi, Dr Muhammad Ajmal Khan Inst Sustainable Halophyte, Karachi 75270, Pakistan. [El-Keblawy, Ali; Aljasmi, Mariam; Mosa, Kareem A.] Univ Sharjah, Fac Sci, Dept Appl Biol, POB 27272, Sharjah, U Arab Emirates. [Aljasmi, Mariam] Sharjah Res Acad, Plant Biotechnol Lab, POB 60999, Sharjah, U Arab Emirates. [Gairola, Sanjay] Sharjah Res Acad, Sharjah Seed Bank & Herbarium, POB 60999, Sharjah, U Arab Emirates. [Phartyal, Shyam S.] Nalanda Univ, Sch Ecol & Environm Studies SEES, Rajgir 803116, Bihar, India. [Soliman, Sameh] Univ Sharjah, Coll Pharm, Dept Med Chem, POB 27272, Sharjah, U Arab Emirates. El-Keblawy, A (corresponding author), Univ Sharjah, Fac Sci, Dept Appl Biol, POB 27272, Sharjah, U Arab Emirates. ahameed@uok.edu.pk; akeblawy@sharjah.ac.ae; sgairola@sra.ae; shyamphartyal@gmail.com; ssoliman@sharjah.ac.ae
ISSN 0140-1963
ISBN 0140-1963
29-Character Source Abbreviation J. Arid. Environ.
Publication Date Dec
Year Published 2021
Volume 195
Beginning Page 7
Digital Object Identifier (DOI) 10.1016/j.jaridenv.2021.104627
Unique Article Identifier WOS:000697775400009

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