Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages

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	Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages
	X. Cheng, H. Zhu, G. Banuelos, B. Yan, B. Shutes, Y. Liang and X. Chen
刊名	South African Journal of Botany
	2018
卷号	118 页码:129-137
通讯作者	祝惠
中文摘要	This study determined the saline-alkaline tolerance of seven hygrophilous plant species during their asexual reproduction and continued growth stages. Indicators of asexual reproduction capacities (e.g., number of new buds/seedlings) and growth potential (e.g., total biomass, chlorophyll content index, number and length of new roots), as well as the Na+ and K+ concentrations and Na+/K+ ratios were obtained in tested plant species exposed in five alkaline salt treatments (NaHCO3) ranging from 0.3 to 20 dS/m during the 30 day experiment. The following results were observed: 1) excessive NaHCO3 (especially at a salinity level of EC >= 10 dS/m) seriously inhibited the capacity of asexual reproduction and continued growth; 2) the number of new buds/seedlings was significantly (P < 0.05) and positively correlated with the number of new roots of plants, while the number of new buds/seedlings was significantly (P < 0.05) and negatively correlated with the total biomass of plants; and 3) species-specific salt-tolerance strategies were observed, i.e., the entry and compartmentalization of Na+ was controlled, and a low Na+/K+ ratios in different parts of plants was maintained. In general, common reed (Phragmites australis), giant reed (Arundo donax), bulrush (Scirpus validus), and fishscale bamboo (Phyllostachys heteroclada) exhibited better saline-alkaline tolerance during asexual reproduction and continued growth undermoderate saline-alkaline conditions. These species are recommended as potential plant species for restoring degraded saline-alkaline wetlands. (c) 2018 SAAB. Published by Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.iga.ac.cn/handle/131322/8891]
专题	东北地理与农业生态研究所_湿地生态系统管理学科组_期刊论文
推荐引用方式 GB/T 7714	X. Cheng, H. Zhu, G. Banuelos, B. Yan, B. Shutes, Y. Liang and X. Chen. Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages[J]. South African Journal of Botany,2018,118:129-137.
APA	X. Cheng, H. Zhu, G. Banuelos, B. Yan, B. Shutes, Y. Liang and X. Chen.(2018).Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages.South African Journal of Botany,118,129-137.
MLA	X. Cheng, H. Zhu, G. Banuelos, B. Yan, B. Shutes, Y. Liang and X. Chen."Saline-alkaline tolerance of hygrophilous plant species during their asexual propagation and continued growth stages".South African Journal of Botany 118(2018):129-137.