干旱区生态环境知识资源中心(Arid): Effect of water stress on growth and dry matter distribution of four dryland species used in tree planting in the Sahel

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DOI	10.1093/forestry/cpab003
	Effect of water stress on growth and dry matter distribution of four dryland species used in tree planting in the Sahel
	Bayen, Philippe; Lykke, Anne Mette; Kagambega, Francois Wenemi; Bognounou, Fidele; Thiombiano, Adjima
通讯作者	Bayen, P (corresponding author), Univ Joseph Ki Zerbo, Lab Plant Biol & Ecol, 03 BP 7021, Ouagadougou 03, Burkina Faso. ; Bayen, P (corresponding author), Univ Dedougou, Training & Res Unit Appl Sci & Technol, BP 176, Dedougou, Burkina Faso.
来源期刊	FORESTRY
ISSN	0015-752X
EISSN	1464-3626
出版年	2021
卷号	94 期号:4 页码:538-550
英文摘要	Water stress is the most important factor limiting early survival and growth of seedlings in arid and semi-arid zones. Many woody species develop adaptive mechanisms in response to water stress. This study assesses survival rate, growth and dry matter distribution in response to water stress in four dryland species (Senegalia dudgeonii, Senegalia gourmaensis, Vachellia nilotica and Vachellia tortilis). A total of 240 seedlings (60 per species) were grown using a completely randomized block design with three replicates in each of three water treatments (control = 100 percent of field capacity; moderate water stress = 50 percent of field capacity; severe water stress = 25 percent of field capacity) with a 7 day watering frequency. Data were collected on seedling survival, height, collar diameter, leaf production and dry matter distribution. Survival rate of the four species was not affected by water stress. However, the morphological responses to water stress were significantly different between species. Water stress resulted in significant reductions in height and collar diameter, higher below-ground biomass and significant increase in shedding of leaves. Under water stress, S. dudgeonii, S. gourmaensis and V. tortilis invested more in root growth. The allocation pattern from above-ground to below-ground parts was found to be the main adaption to drought. In contrast, V. nilotica gave preference to above-ground development, which could be an indication that the seedlings are adapted to grow under severe water stress. The results confirm the interspecific genetic differences in growth and dry matter distribution among species. These variations in water stress response may be used as criteria for species selection for degraded land reforestation.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000692542600006
WOS关键词	DESICCATION TOLERANCE ; SEEDLING GROWTH ; DROUGHT ; TRAITS ; SURVIVAL ; DEFICIT ; RESTORATION ; RESISTANCE ; EVOLUTION ; CLIMATE
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/2XILL650/363259
作者单位	[Bayen, Philippe; Thiombiano, Adjima] Univ Joseph Ki Zerbo, Lab Plant Biol & Ecol, 03 BP 7021, Ouagadougou 03, Burkina Faso; [Bayen, Philippe] Univ Dedougou, Training & Res Unit Appl Sci & Technol, BP 176, Dedougou, Burkina Faso; [Lykke, Anne Mette] Aarhus Univ, Dept Biosci, Vejlsovej 25, DK-8660 Skanderborg, Denmark; [Kagambega, Francois Wenemi] Inst Environm & Rech Agr INERA, Dept Environm & Foret, 03 BP 7041, Ouagadougou 03, Burkina Faso; [Bognounou, Fidele] Laurentian Forestry Ctr, Canadian Forest Serv, Nat Resources Canada, 1055 PEPS,POB 10380, Ste Foy, PQ G1V 4C7, Canada
推荐引用方式 GB/T 7714	Bayen, Philippe,Lykke, Anne Mette,Kagambega, Francois Wenemi,et al. Effect of water stress on growth and dry matter distribution of four dryland species used in tree planting in the Sahel[J],2021,94(4):538-550.
APA	Bayen, Philippe,Lykke, Anne Mette,Kagambega, Francois Wenemi,Bognounou, Fidele,&Thiombiano, Adjima.(2021).Effect of water stress on growth and dry matter distribution of four dryland species used in tree planting in the Sahel.FORESTRY,94(4),538-550.
MLA	Bayen, Philippe,et al."Effect of water stress on growth and dry matter distribution of four dryland species used in tree planting in the Sahel".FORESTRY 94.4(2021):538-550.