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EFFECTS OF SALINITY, TEMPERATURE, LIGHT AND DORMANCY REGULATING CHEMICALS ON SEED GERMINATION OF SALSOLA DRUMMONDII ULBR | |
Rasheed, Aysha; Hameed, Abdul; Khan, M. Ajmal; Gul, Bilquees | |
通讯作者 | Gul, Bilquees |
来源期刊 | PAKISTAN JOURNAL OF BOTANY
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ISSN | 0556-3321 |
EISSN | 2070-3368 |
出版年 | 2015 |
卷号 | 47期号:1页码:11-19 |
英文摘要 | 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 25/35 degrees 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 GA(4+7), ameliorated germination of salt stressed seeds under complete darkness and GA(4) 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. |
英文关键词 | Fusicoccin Germination recovery Halophyte Salt desert Seed germination Seed viability |
类型 | Article |
语种 | 英语 |
国家 | Pakistan |
收录类别 | SCI-E |
WOS记录号 | WOS:000353029600002 |
WOS关键词 | ZYGOPHYLLUM-SIMPLEX L. ; ALLENROLFEA-OCCIDENTALIS ; DIMORPHIC SEEDS ; SUAEDA-SALSA ; GROWTH ; FUSICOCCIN ; SHRUB ; ALLEVIATION ; STRATEGIES ; TOLERANCE |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/189467 |
作者单位 | Univ Karachi, Inst Sustainable Halophyte Utilizat, Karachi 75270, Pakistan |
推荐引用方式 GB/T 7714 | Rasheed, Aysha,Hameed, Abdul,Khan, M. Ajmal,et al. EFFECTS OF SALINITY, TEMPERATURE, LIGHT AND DORMANCY REGULATING CHEMICALS ON SEED GERMINATION OF SALSOLA DRUMMONDII ULBR[J],2015,47(1):11-19. |
APA | Rasheed, Aysha,Hameed, Abdul,Khan, M. Ajmal,&Gul, Bilquees.(2015).EFFECTS OF SALINITY, TEMPERATURE, LIGHT AND DORMANCY REGULATING CHEMICALS ON SEED GERMINATION OF SALSOLA DRUMMONDII ULBR.PAKISTAN JOURNAL OF BOTANY,47(1),11-19. |
MLA | Rasheed, Aysha,et al."EFFECTS OF SALINITY, TEMPERATURE, LIGHT AND DORMANCY REGULATING CHEMICALS ON SEED GERMINATION OF SALSOLA DRUMMONDII ULBR".PAKISTAN JOURNAL OF BOTANY 47.1(2015):11-19. |
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