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Publication Type J
Authors Bhatt, A., S. S. Phartyal, P. C. Phondani and D. J. Gallacher
Title Perianth colour dimorphism is related to germination properties and salinity tolerance in Salsola vermiculata in the Arabian deserts
Source Nordic Journal of Botany
Author Keywords seed heteromorphism stress tolerance affinis chenopodiaceae atriplex-halimus komarovii iljin canary-islands central mexico junggar basin plant-growth temperature
Abstract We investigated the dimorphic perianth colour of Salsola vermiculata and its association with seed germination percentage, interactions with temperature, light, salinity and recovery from prior salinity exposure. Seeds with and without pink and yellow perianth were incubated at three thermal regimes, two photoperiods, and five salinity levels. Germination recovery after salinity exposure was observed on seeds that failed to germinate during the salinity study. The germination percentage and rate were significantly related to the perianth colour, the presence of perianth wings, thermal regimes and photoperiod. The presence of a perianth wing significantly reduced germination percentage and germination rate in both the pink and the yellow morph, but the yellow morph exhibited a higher germination percentage. Perianth wing removal increased germination in saline conditions. With the perianth removed, germination recovery was higher for the pink morph than for the yellow one. We suggest that by providing two different strategies for balancing germination with dormancy during favourable conditions, the presence of two morphs makes S. vermiculata more successful in highly unpredictable desert environments.
Author Address [Bhatt, Arvind; Phondani, Prakash C.] Gulf Org Res & Dev, Qatar Sci & Technol Pk, Doha, Qatar. [Bhatt, Arvind] Kuwait Inst Sci Res, Safat, Kuwait. [Phartyal, Shyam S.] HNB Garhwal Univ, Dept Forestry & Nat Resources, Srinagar, Jammu & Kashmir, India. [Gallacher, David J.] Zayed Univ, Dept Interdisciplinary Studies, Al Ruwayyah, Dubai, U Arab Emirates. Bhatt, A (reprint author), Gulf Org Res & Dev, Qatar Sci & Technol Pk, Doha, Qatar. drbhatt79@gmail.com
ISSN 0107-055X
ISBN 0107-055X
29-Character Source Abbreviation Nord. J. Bot.
Publication Date Oct
Year Published 2017
Volume 35
Issue 5
Beginning Page 609-617
Digital Object Identifier (DOI) 10.1111/njb.01502
Unique Article Identifier WOS:000413169200014
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