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MECHANISMS OF COMBINED EFFECTS OF SALT AND ALKALINE STRESSES ON SEED GERMINATION AND SEEDLINGS OF MELILOTUS OFFICINALIS (FABACEAE) IN NORTHEAST OF CHINA

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dc.contributor.author SOAN VU, THI
dc.contributor.author ZHANG, DAWEI
dc.contributor.author XIAO, WEIHUA
dc.contributor.author CHI, CHUNYU
dc.contributor.author XING, YI
dc.contributor.author DONG FU, DONG
dc.contributor.author YUAN, ZENING
dc.date.accessioned 2022-10-21T10:29:01Z
dc.date.available 2022-10-21T10:29:01Z
dc.date.issued 2015-10-01
dc.identifier.citation Thi, S. V., Zhang, D., Xiao, W., Chi, C., Xing, Y., Fu, D., & Yuan, Z. (2015). Mechanisms of combined effects of salt and alkaline stresses on seed germination and seedlings of Melilotus officinalis (Fabaceae) in northeast of China. Pakistan Journal of Botany, 47(5), 1603-1611. en_US
dc.identifier.issn 2070-3368
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/13535
dc.description.abstract In line with the salt-alkalinized soils found in the northeast of China, the conditions were simulated to investigate the mechanisms associated with this combination of stresses on Melilotus officinalis. The effects of salinity (NaCl: 0-300mM) in combination with alkali (pH: 7.1-9.8) on the seed germination and seedlings of M. officinalis were investigated. The results showed that germination was not inhibited completely by the salt-alkali conditions tested. The recovery germinations were significant higher than the control or had no significant differences with the control under the conditions of NaCl<200mM and pH=9.0, suggesting that non-germinated seeds may have a strategy to get through and resist the stress during germination stage. For the seedling growth, M. officinalis was capable of surviving at high pH (pH≤9.8) and the salinity (NaCl≤200mM) (seedling survival rate: 84.77±8.62%). The characteristic feature for combined salt-alkali stresses is the reciprocal enhancement between salt and alkali stresses. The combined action of salinity and pH should be considered when evaluating the effects of salt-alkali stresses. Correlation and regression analyses showed that salinity was the dominant stress factor, while pH was a secondary factor. From the physiological and ecological parameters, we suggested that M. officinalis is a salt-alkali tolerant species which can be used in vegetative restoration of saline soils in the northeast of China. en_US
dc.language.iso en en_US
dc.publisher Karachi: University of Karachi en_US
dc.subject Melilotus officinalis en_US
dc.subject Salt-alkali stress en_US
dc.subject Germination en_US
dc.subject Seedling growth en_US
dc.subject Salt-alkali tolerance en_US
dc.title MECHANISMS OF COMBINED EFFECTS OF SALT AND ALKALINE STRESSES ON SEED GERMINATION AND SEEDLINGS OF MELILOTUS OFFICINALIS (FABACEAE) IN NORTHEAST OF CHINA en_US
dc.type Article en_US


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