干旱区生态环境知识资源中心(Arid): Algerian maize populations from the Sahara desert as potential sources of drought tolerance

Arid

DOI	10.1007/s11738-019-2806-0
	Algerian maize populations from the Sahara desert as potential sources of drought tolerance
	Djemel, Abderahmane 1,2,3,4; Alvarez-Iglesias, Lorena 2,3; Santiago, Rogelio 2,3,4; Ana Malvar, Rosa 2,3; Pedrol, Nuria 2,3,4; Revilla, Pedro 2,3
通讯作者	Revilla, Pedro
来源期刊	ACTA PHYSIOLOGIAE PLANTARUM
ISSN	0137-5881
EISSN	1861-1664
出版年	2019
卷号	41 期号:1
英文摘要	Drought affects maize (Zea mays L.) performance from seedling to grain filling. Sources of drought tolerance at multi-scale growth are crucial for maize breeders. The objectives of this work were to identify new sources and mechanisms of drought tolerance and to study the traits controlling plant growth under drought and their associations with yield. We evaluated a collection of 18 maize populations from the Algerian Saharan oases under simulated drought conditions using Polyethylene glycol 6000, and in the field. The genotypextreatment interactions were more significant under field than under control conditions. Under field conditions, based on general agronomic performance, PI527476, PI542678 and PI527474 were the most drought-tolerant populations. PI527476 was the most tolerant population for germination-related traits, PI542678 exhibited high final germination, high number of secondary roots and positive water use efficiency (WUE), while PI527474 presented high number of secondary roots number and WUE. PI542685 was drought tolerant at seedling stage, characterized by high germination, long roots, heavy root, high number of secondary roots, and stable shoot/root weight ratio. Germination, shoot/root weight, root dry weight at seedling stage, and dry weight of secondary roots were the most significant seedling growth-related traits affecting WUE and yield under drought. Differences were detected among populations under stress conditions at multi-scale growth phases with some common genetic dependency of yield on seedling-related traits. Therefore, these Saharan populations could provide favorable alleles for drought tolerance for breeding programs, and the use of seedling-related traits, especially root performance, as secondary yield-related traits could lead to increased gain yield selection under drought conditions.
英文关键词	Zea mays L Drought stress Seedling growth Algerian landraces
类型	Article
语种	英语
国家	Algeria ; Spain
收录类别	SCI-E
WOS记录号	WOS:000455090900002
WOS关键词	ANTHESIS-SILKING INTERVAL ; GENETIC-RESOURCES ; SEEDLING TRAITS ; INBRED LINES ; GRAIN-YIELD ; STRESS ; ADAPTATION ; RESPONSES ; DEFICIT ; GROWTH
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/2XILL650/213860
作者单位	1.Ecole Natl Super Agron, El Harrach Ave Hassan Badi, Algiers 16200, Algeria; 2.Univ Vigo, Unidad Asociada Agrobiol Ambiental Calidad Suelos, Pontevedra, Spain; 3.CSIC, Mision Biol Galicia, Apartado 28, Pontevedra 36080, Spain; 4.Univ Vigo, Dept Plant Biol & Soil Sci, Campus Lagoas Marcosende, Vigo 36310, Spain
推荐引用方式 GB/T 7714	Djemel, Abderahmane,Alvarez-Iglesias, Lorena,Santiago, Rogelio,et al. Algerian maize populations from the Sahara desert as potential sources of drought tolerance[J],2019,41(1).
APA	Djemel, Abderahmane,Alvarez-Iglesias, Lorena,Santiago, Rogelio,Ana Malvar, Rosa,Pedrol, Nuria,&Revilla, Pedro.(2019).Algerian maize populations from the Sahara desert as potential sources of drought tolerance.ACTA PHYSIOLOGIAE PLANTARUM,41(1).
MLA	Djemel, Abderahmane,et al."Algerian maize populations from the Sahara desert as potential sources of drought tolerance".ACTA PHYSIOLOGIAE PLANTARUM 41.1(2019).