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Publication Type J
Authors Ahmed, MZ; Parveen, F; Gulzar, S; Gul, B; Khan, MA
Author Full Name Ahmed, Muhammad Zaheer; Parveen, Fahmida; Gulzar, Salman; Gul, Bilquees; Khan, Muhammad Ajmal
Title Effects of chloride and sulfate salts on seed germination of halophytes from dry alpine climate
Source JOURNAL OF PLANT NUTRITION
Language English
Document Type Article; Early Access
Author Keywords Halogeton glomeratus; ion toxicity; Lepidium latifolium; light and temperature; Peganum harmala; playa habitat
Keywords Plus HALOXYLON-AMMODENDRON; SODIUM; CALCIUM; GROWTH; MAGNESIUM; SALINITY; POTASSIUM; TOLERANCE; ECOLOGY; STRESS
Abstract A soil's ionic profile along with other climatic factors influences seed germination in natural habitats. This study evaluates the role of different chloride and sulfate salts during germination of three halophytes (Halogeton glomeratus,Lepidium latifolium, andPeganum harmala) distributed in temperate salt playa habitats of Pakistan. Seeds were germinated in six salts concentrations (0 to 500 mM) under five temperature regimes (5/15 to 25/35 degrees C) and two photoperiods (12 h photoperiod and 24 h-dark). Germination percentage and germination velocity decreased with an increase in salt concentration and corresponding osmotic potentials. Germination ofH. glomeratusandL. latifoliumin iso-osmotic solutions of various salts was faster in K(+)salts compared to Na(+)and Mg(2+)while inP. harmalagermination was higher in Mg(2+)and Na(+)salts.H. glomeratusandL. latifoliumwere more tolerant to SO(4)(2-)than Cl(-)salts, however,P. harmalawas unaffected by anion. Optimal temperature was 20/30 degrees C for germination of all species irrespective of salt type. Sulfate seems to be less inhibitory only during germination ofH. glomeratusin complete dark. The climatic condition of dry alpine habitat allows selected species to germinate at moderate temperature regimes (April-May) in the presence of light. High ionic concentration in soil may inhibit germination of all species butP. harmalaappears to be more adapted in comparison to others. High sulfate soil content may favor seedling recruitment ofH. glomeratus(annual plant) under mountain cracks.
Author Address [Ahmed, Muhammad Zaheer; Gulzar, Salman; Gul, Bilquees; Khan, Muhammad Ajmal] Univ Karachi, Fac Sci, Dr M Ajmal Khan Inst Sustainable Halophyte Utiliz, Univ Rd, Karachi 75270, Pakistan; [Parveen, Fahmida] Blue Sphere Environm, Melbourne, Vic, Australia
Reprint Address Ahmed, MZ (corresponding author), Univ Karachi, Fac Sci, Dr M Ajmal Khan Inst Sustainable Halophyte Utiliz, Univ Rd, Karachi 75270, Pakistan.
E-mail Address mzahmed@uok.edu.pk
ResearcherID Number ; Gulzar, Salman/D-5558-2011
ORCID Number Ahmed, Muhammad Zaheer/0000-0003-3953-6905; Gulzar, Salman/0000-0003-2907-7469
Publisher TAYLOR & FRANCIS INC
Publisher City PHILADELPHIA
Publisher Address 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
ISSN 0190-4167
29-Character Source Abbreviation J PLANT NUTR
ISO Source Abbreviation J. Plant Nutr.
Digital Object Identifier (DOI) 10.1080/01904167.2020.1771573
Page Count 12
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number LZ7VF
Unique Article Identifier WOS:000541429700001
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