干旱区生态环境知识资源中心(Arid): Effects of drought on agronomic and fiber quality in an introgressed backcross inbred line population of Upland cotton under field conditions

Arid

DOI	10.1016/j.fcr.2020.107850
	Effects of drought on agronomic and fiber quality in an introgressed backcross inbred line population of Upland cotton under field conditions
	Abdelraheem, Abdelraheem; Adams, Nicholas; Zhang, Jinfa
通讯作者	Zhang, JF
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2020
卷号	254
英文摘要	Upland cotton (Gossypium hirsutum) is the most important fiber crop and an important oilseed crop in the world. Developing drought tolerant cultivars is important to sustainable cotton production in arid and semi-arid regions. However, there is a lack of information on genetic variation for drought tolerance in breeding populations. In this study, a backcross inbred line (BIL) Upland population with germplasm introgression from a more drought-tolerant American Pima cotton (G. barbadense) parent was evaluated in multiple field environments under well-watered (WW) and water-limited (WL) conditions at the flowering stage. Drought at the flowering stage reduced seedcotton yield (SCY), lint yield (LY), boll weight (BW), fiber length (FL), and fiber strength (STR) but increased lint percentage (LP), micronaire (MIC), neps per size, nep per gram, seedcoat nep size, and seed coat fragment count by gram. Significant genetic differences in the BIL population were detected for most agronomic and fiber quality traits and drought susceptibility index (DSI) for these traits. DSI of SCY and LY ranged from 0.01 to 1.5 and 0.1-1.45, respectively, reflecting the tolerance level of the BILs under WL conditions. The broad-sense heritability estimates were moderate for most agronomic traits and moderate to high for most fiber quality traits. Results indicated that highly positive correlation was detected for agronomic and fiber quality traits between WW and WL conditions, with the highest correlations for SCY, LY, UHM, SCY, and MIC. Promising BILs with drought tolerance were identified. This study has provided a line of evidence that field drought tolerance was transferred from the more drought tolerant Pima line to Upland cotton.
英文关键词	Upland cotton Pima cotton Introgression lines Drought tolerance Drought susceptibility index
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000542185300007
WOS关键词	UNCERTAIN RAINFALL ; OSMOTIC ADJUSTMENT ; STRESS TOLERANCE ; YIELD ; IRRIGATION ; RESPONSES ; GROWTH ; CULTIVARS ; SELECTION ; CLIMATE
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324814
作者单位	[Abdelraheem, Abdelraheem; Adams, Nicholas; Zhang, Jinfa] New Mexico State Univ, Dept Plant & Environm Sci, Las Cruces, NM 88003 USA
推荐引用方式 GB/T 7714	Abdelraheem, Abdelraheem,Adams, Nicholas,Zhang, Jinfa. Effects of drought on agronomic and fiber quality in an introgressed backcross inbred line population of Upland cotton under field conditions[J]. New Mexico State University,2020,254.
APA	Abdelraheem, Abdelraheem,Adams, Nicholas,&Zhang, Jinfa.(2020).Effects of drought on agronomic and fiber quality in an introgressed backcross inbred line population of Upland cotton under field conditions.FIELD CROPS RESEARCH,254.
MLA	Abdelraheem, Abdelraheem,et al."Effects of drought on agronomic and fiber quality in an introgressed backcross inbred line population of Upland cotton under field conditions".FIELD CROPS RESEARCH 254(2020).