Arid
DOI10.1111/j.1365-2028.2009.01111.x
Influence of temperature and salinity on the germination of Lotus creticus (L.) from the arid land of Tunisia
Rejili, Mokhtar1,4; Vadel, Ahmedou M.2; Guetet, Arbi3; Mahdhi, Mosbah4; Lachiheb, Belgacem1; Ferchichi, Ali1; Mars, Mohamed4
通讯作者Rejili, Mokhtar
来源期刊AFRICAN JOURNAL OF ECOLOGY
ISSN0141-6707
出版年2010
卷号48期号:2页码:329-337
英文摘要

Effects of salinity, temperature and their interactions on the rate and final percentage of germination were evaluated for two populations (Msarref, Oued dkouk) of the invasive glycophyte Lotus creticus Linne, grown under arid environmental conditions of the Tunisia. Seeds that were not treated with NaCl germinated well in a wide range of temperatures. For both populations, maximum germination occurred in distilled water at 25 degrees C and lowest germination for all salinities was at 35 degrees C. Germination was substantially delayed and significantly reduced with an increase in NaCl to levels above 300 mm. Compared to the Oued dkouk population, final germination and germination rate of the Msarref population was completely inhibited at 300 mm NaCl. The interactive effect of temperature and NaCl concentration on final germination and germination rate was significant (P < 0.01), indicating that the germination response to salinity depended on temperature. The inhibition of Oued dkouk population seed germination at high salt concentration was mostly due to osmotic effects while ionic effects were noted at Msarref population. The germination behaviour of the Oued dkouk population would therefore imply adaptive mechanisms to saline environments, while in the Msarref population such mechanisms seem to be absent. Since seed germination is more sensitive to salinity stress than the growth of established plants, the greater tolerance to salinity of Oued dkouk population would be an adaptive feature of this population to saline environment.


英文关键词arid habitat germination Lotus creticus (L ) osmotic salinity temperature toxicity
类型Article
语种英语
国家Tunisia
收录类别SCI-E
WOS记录号WOS:000277320000006
WOS关键词EARLY SEEDLING GROWTH ; ZYGOPHYLLUM SIMPLEX ; SCOTCH THISTLE ; SEEDS ; DORMANCY ; MATURATION ; RESPONSES ; DESERT ; TIME ; CHENOPODIACEAE
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/163010
作者单位1.Arid Area Inst IRA, Arid & Oases Cropping Lab, Medenine 4119, Tunisia;
2.Fac Sci, Abiot Stress Lab, Gabes 6011, Tunisia;
3.Arid Area Inst, Pastoral Ecol Lab, Medenine 4119, Tunisia;
4.Fac Sci Gabes, Lab Plant Biotechnol Appl Crop Improvement, Erriadh City Zrig 6072, Gabes, Tunisia
推荐引用方式
GB/T 7714
Rejili, Mokhtar,Vadel, Ahmedou M.,Guetet, Arbi,et al. Influence of temperature and salinity on the germination of Lotus creticus (L.) from the arid land of Tunisia[J],2010,48(2):329-337.
APA Rejili, Mokhtar.,Vadel, Ahmedou M..,Guetet, Arbi.,Mahdhi, Mosbah.,Lachiheb, Belgacem.,...&Mars, Mohamed.(2010).Influence of temperature and salinity on the germination of Lotus creticus (L.) from the arid land of Tunisia.AFRICAN JOURNAL OF ECOLOGY,48(2),329-337.
MLA Rejili, Mokhtar,et al."Influence of temperature and salinity on the germination of Lotus creticus (L.) from the arid land of Tunisia".AFRICAN JOURNAL OF ECOLOGY 48.2(2010):329-337.
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