干旱区生态环境知识资源中心(Arid): Yield and water-use related traits in landrace and new soybean cultivars in arid and semi-arid areas of China

Arid

DOI	10.1016/j.fcr.2022.108559
	Yield and water-use related traits in landrace and new soybean cultivars in arid and semi-arid areas of China
	Feng, Yun-Yin; Richards, Richard A.; Jin, Yi; Siddique, Kadambot H. M.; Li, Feng-Min; He, Jin
通讯作者	He, J
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2022
卷号	283
英文摘要	Empirical soybean breeding has improved its yield in arid and semi-arid areas of China. The objective of this study was to identify the important traits found in successful commercial soybean cultivars following the domestication of landraces through breeding in the semi-arid region of North-west China. A further objective was to identify any key traits that can be targeted using trait-based selection to improve yield under drought. Seed yield, phenology, water-use, water-use efficiency and their related traits in soybean landraces and successful cultivars were compared over a four year period in the field and this was supplemented with an outdoor pot experiment. The results in both field and pot experiments showed that successful soybean cultivars have a reduced thermal time to flowering but the thermal time for seed filling has increased. This change in partitioning of phenological time in the commercial cultivars resulted in a lower number of pods, fewer seeds per unit area but an increase in 100-seed weight, harvest index and seed yield. New soybean cultivars with high seed yield also had a lower vegetative biomass and less water use in both field and pot experiments than landraces but the lower water use did not compromise seed yield. The commercial cultivars also had a lower pod wall ratio (ratio of pod wall weight to total pod weight at maturity) which also contributed to yield by improving harvest index. We conclude that the key traits that have been altered as a result of soybean breeding in arid and semi-arid areas of China have been (1) a shortening of the duration between sowing and flowering but an extension of the seed filling period, (2) fewer pods but an increase in seed number per pod and 100-seed weight and also a decreased pod wall ratio, (3) an increased harvest index and (4) a reduced water use, particularly in the deeper soil layers.
英文关键词	Phenology Seed filling duration Harvest index Water-use Water-use efficiency Biomass partitioning Pod wall ratio
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000803737000003
WOS关键词	POD WALL PROPORTION ; SEED YIELD ; GENETIC-IMPROVEMENT ; GRAIN LEGUMES ; STRESS ; PHENOLOGY ; WEIGHT ; MERR.
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392578
推荐引用方式 GB/T 7714	Feng, Yun-Yin,Richards, Richard A.,Jin, Yi,et al. Yield and water-use related traits in landrace and new soybean cultivars in arid and semi-arid areas of China[J],2022,283.
APA	Feng, Yun-Yin,Richards, Richard A.,Jin, Yi,Siddique, Kadambot H. M.,Li, Feng-Min,&He, Jin.(2022).Yield and water-use related traits in landrace and new soybean cultivars in arid and semi-arid areas of China.FIELD CROPS RESEARCH,283.
MLA	Feng, Yun-Yin,et al."Yield and water-use related traits in landrace and new soybean cultivars in arid and semi-arid areas of China".FIELD CROPS RESEARCH 283(2022).