干旱区生态环境知识资源中心(Arid): Effect of heat shock on the germination of seeds of the species Acacia senegal L. and Acacia seyal Del. from sub-Saharan Africa (Ethiopia)

Arid

DOI	10.5424/fs/2019282-14227
	Effect of heat shock on the germination of seeds of the species Acacia senegal L. and Acacia seyal Del. from sub-Saharan Africa (Ethiopia)
	Herrero, Celia; Kassa, Amelework; Pando, Valentin; Bravo, Felipe; Alia, Ricardo
通讯作者	Herrero, C (corresponding author), Univ Valladolid, INIA, Sustainable Forest Management Res Inst, Avda Madrid 44, Palencia 34071, Spain. ; Herrero, C (corresponding author), ECM Ingn Ambiental SL, C Curtidores 17, Palencia 34004, Spain.
来源期刊	FOREST SYSTEMS
ISSN	2171-5068
EISSN	2171-9845
出版年	2019
卷号	28 期号:2
英文摘要	Aim of the study: Understanding post-fire germination of tree species in arid and semi-arid zones of sub-Saharan Africa. Area of study: Ethiopian Acacia senegal L. and Acacia seyal Del. forests. Material and methods: Seeds were subjected to heat shocks at combinations of four temperatures (60 degrees, 90 degrees, 120 degrees and 150 degrees C) and three exposure times (1, 5 and 10 minutes). A control was also included, resulting in a total of thirteen treatments. After the application of the heat shocks, the viability of no germinated seeds was assessed after immersion in a Tetrazolium solution. A mixed and a logistic model were used to analyse the influence of heat shock on germination. Main results: Results showed that germination depended on the species, the heat shock treatment and their interaction. Both species showed similar germination results at temperatures below 90 degrees C in all exposure times, however, germination in Acacia senegal was statistically higher in most of the heat shocks. On the other hand, germination probability decreased in both species, when the exposure time increased, although with a different behaviour. In 1 minute of time of exposure, the germination probability was higher than 60% in the two species throughout the temperature range. However, at 5 minutes of time and temperature smaller than 90 degrees C, the probability of germination was higher than 70% in A. senegal and 50% in A. seyal. Although germination in both species was impacted by the different heat shocks, non-germinated seeds were viable. Research highlights: This paper showed, according to these results, that heat shock would negatively influence the regeneration of both species, and especially for A. seyal.
英文关键词	germination Acacia heat shock logistic model
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000490786300002
WOS关键词	HIGH-TEMPERATURES ; SAVANNA WOODLANDS ; SUDANIAN SAVANNA ; PINUS-SYLVESTRIS ; FIRE ; SMOKE ; INTENSITY ; ECOLOGY ; FOREST ; WATER
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369904
作者单位	[Herrero, Celia; Kassa, Amelework; Pando, Valentin; Bravo, Felipe; Alia, Ricardo] Univ Valladolid, INIA, Sustainable Forest Management Res Inst, Avda Madrid 44, Palencia 34071, Spain; [Herrero, Celia] ECM Ingn Ambiental SL, C Curtidores 17, Palencia 34004, Spain; [Pando, Valentin] Univ Valladolid, Escuela Tecn Super Ingn Agr, Dept Estadist & Invest Operat, Avda Madrid 44, Palencia 34071, Spain; [Bravo, Felipe] Univ Valladolid, Escuela Tecn Super Ingn Agr, Dept Prod Vegetal & Recursos Forestales, Avda Madrid 44, Palencia 34071, Spain; [Alia, Ricardo] Forest Res Ctr INIA, Dept Forest Ecol & Genet, Ctra A Coruna,Km 7-5, Madrid 28040, Spain
推荐引用方式 GB/T 7714	Herrero, Celia,Kassa, Amelework,Pando, Valentin,et al. Effect of heat shock on the germination of seeds of the species Acacia senegal L. and Acacia seyal Del. from sub-Saharan Africa (Ethiopia)[J],2019,28(2).
APA	Herrero, Celia,Kassa, Amelework,Pando, Valentin,Bravo, Felipe,&Alia, Ricardo.(2019).Effect of heat shock on the germination of seeds of the species Acacia senegal L. and Acacia seyal Del. from sub-Saharan Africa (Ethiopia).FOREST SYSTEMS,28(2).
MLA	Herrero, Celia,et al."Effect of heat shock on the germination of seeds of the species Acacia senegal L. and Acacia seyal Del. from sub-Saharan Africa (Ethiopia)".FOREST SYSTEMS 28.2(2019).