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EFFECTS OF SALINITY, TEMPERATURE, LIGHT AND DORMANCY REGULATING CHEMICALS ON SEED GERMINATION OF SALSOLA DRUMMONDII ULBR.

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dc.contributor.author AYSHA RASHEED
dc.contributor.author ABDUL HAMEED
dc.contributor.author KHAN, M. AJMAL
dc.contributor.author BILQUEES GUL
dc.date.accessioned 2022-12-21T04:16:02Z
dc.date.available 2022-12-21T04:16:02Z
dc.date.issued 2015-02-02
dc.identifier.citation Rasheed, A., Hameed, A., Khan, M. A., & Gul, B. (2015). Effects of salinity, temperature, light and dormancy regulating chemicals on seed germination of Salsola drummondii Ulbr. Pak J Bot, 47, 11-19. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/15408
dc.description.abstract Salsola drummondii Ulbr. is a perennial halophyte found in salt deserts of southern Balochistan, Pakistan. Experiments were conducted to study the effects of salinity (0, 200, 400, 600, 800 and 1000 mM NaCl), thermoperiod (10/20, 15/25, 20/30 and 25/35o C), light (12-h photoperiod and dark) and dormancy regulating chemicals (DRCs) on germination, recovery and viability of the seeds of S. drummondii. Seeds of S. drummondii germinated quickly in distilled water at different temperature regimes and increases in salinity decreased seed germination. Interestingly, few seeds could even germinate in 1000 mM NaCl treatment, which is about twice as high as seawater salinity. Seeds were partially photoblastic and showed relatively higher germination under 12-h photoperiod than in dark. Seeds showed poor recovery of germination from salinity and particularly when germinated in dark. Germination inhibition at high salinity (800 mM NaCl) under 12-h photoperiod was partially alleviated by the exogenous application of different DRCs, particularly fusicoccin. Moreover, all the DRCs, except GA4+7, ameliorated germination of salt stressed seeds under complete darkness and GA4 and fusicoccin were most effective. Our study shows that seeds of S. drummondii are highly tolerant to salinity and variation in temperature but partially photoblastic nature indicate that seeds will not germinate if buried under the soil. Seed germination under saline conditions can be improved by the use of DRCs particularly by application of fusicoccin. en_US
dc.language.iso en en_US
dc.publisher Karachi: Pakistan Botanical Society en_US
dc.subject Fusicoccin en_US
dc.subject Germination recovery en_US
dc.subject Halophyte en_US
dc.subject Salt desert en_US
dc.subject Seed germination en_US
dc.subject Seed viability en_US
dc.title EFFECTS OF SALINITY, TEMPERATURE, LIGHT AND DORMANCY REGULATING CHEMICALS ON SEED GERMINATION OF SALSOLA DRUMMONDII ULBR. en_US
dc.type Article en_US


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