干旱区生态环境知识资源中心(Arid): Effect of traditional soybean breeding on water use strategy in arid and semi-arid areas

Arid

DOI	10.1016/j.eja.2020.126128
	Effect of traditional soybean breeding on water use strategy in arid and semi-arid areas
	Yang, Ming-Hao; Jahufer, Mohamed Z. Z.; He, Jin; Dong, Rui; Hofmann, Rainer; Siddique, Kadambot H. M.; Li, Feng-Min
通讯作者	He, J
来源期刊	EUROPEAN JOURNAL OF AGRONOMY
ISSN	1161-0301
EISSN	1873-7331
出版年	2020
卷号	120
英文摘要	Water is the main factor determining yield performance under drought conditions. Traditional soybean breeding has significantly increased grain yield under drought, but its effect on water use strategies and associated traits are not well understood. Field and pot experiments with new cultivars and landrace soybean genotypes were undertaken to identify the effect of soybean breeding on water use strategies and related leaf and root functional traits under different water regimes. The new cultivars, on average, had 33.9 %, 45.1 % and 169 % higher grain yields and 47.9 %, 98.4 % and 244 % higher water use efficiencies for grain yield (WUEG) but 8.8 %, 38.1 % and 19.6 % lower water use than the landraces in the field and pot experiments 1 and 2, respectively. Stomatal conductance decreased in the new cultivars at higher soil water contents than the landraces during soil drying. The new cultivars, on average, had a 22.9 % lower root fraction, 21.5 % lower leaf fraction, 20.6 % lower stem fraction and 69.8 % higher pod fraction than landraces, which had 21.7 % and 26.8 % lower root hydraulic conductance at the R2 and R6 stages, respectively, than the landraces. Our results show that (1) traditional soybean breeding has changed the water use strategy from profligate to conservative and improved yield performance and WUEG, (2) the high sensitivity of stomatal conductance to water stress is coordinated with lower root hydraulic conductance to limit water use, and (3) selecting new cultivars with high grain yield but low water use may a new way to improve yield performance under water-limited conditions.
英文关键词	Grain yield Root hydraulic conductivity Stomatal conductance Harvest index
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000571535400009
WOS关键词	OSMOTIC ADJUSTMENT ; DROUGHT ; YIELD ; CONDUCTANCE ; STRESS ; RESISTANCE ; CULTIVARS ; ANATOMY ; SIGNALS ; BARLEY
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	兰州大学 ; University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326416
作者单位	[Yang, Ming-Hao; He, Jin; Dong, Rui] Guizhou Univ, Coll Anim Sci, Coll Agr, Minist Educ,Key Lab Plant Resource Conservat & Ge, Guiyang 550025, Guizhou, Peoples R China; [He, Jin; Li, Feng-Min] Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China; [Jahufer, Mohamed Z. Z.] Ag Res Ltd, Grasslands Res Ctr, Tennent Dr,Private Bag 11008, Palmerston North, New Zealand; [Hofmann, Rainer] Lincoln Univ, Fac Agr & Life Sci, Christchurch 7647, New Zealand; [Siddique, Kadambot H. M.] Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia
推荐引用方式 GB/T 7714	Yang, Ming-Hao,Jahufer, Mohamed Z. Z.,He, Jin,et al. Effect of traditional soybean breeding on water use strategy in arid and semi-arid areas[J]. 兰州大学, University of Western Australia,2020,120.
APA	Yang, Ming-Hao.,Jahufer, Mohamed Z. Z..,He, Jin.,Dong, Rui.,Hofmann, Rainer.,...&Li, Feng-Min.(2020).Effect of traditional soybean breeding on water use strategy in arid and semi-arid areas.EUROPEAN JOURNAL OF AGRONOMY,120.
MLA	Yang, Ming-Hao,et al."Effect of traditional soybean breeding on water use strategy in arid and semi-arid areas".EUROPEAN JOURNAL OF AGRONOMY 120(2020).