干旱区生态环境知识资源中心(Arid): Genetically modified maize hybrids and delayed sowing reduced drought effects across a rainfall gradient in temperate Argentina

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DOI	10.1093/jxb/erab139
	Genetically modified maize hybrids and delayed sowing reduced drought effects across a rainfall gradient in temperate Argentina
	Otegui, Maria E.; Riglos, Maximiliano; Mercau, Jorge L.
通讯作者	Otegui, ME (corresponding author), Univ Buenos Aires, CONICET INTA FAUBA, Fac Agron, Estn Expt Pergamino, Buenos Aires, DF, Argentina. ; Mercau, JL (corresponding author), INTA, Agencia Extens San Luis, San Luis, Argentina.
来源期刊	JOURNAL OF EXPERIMENTAL BOTANY
ISSN	0022-0957
EISSN	1460-2431
出版年	2021
卷号	72 期号:14 页码:5180-5188
英文摘要	Before the introduction of genetically modified insect-tolerant maize (Zea mays L.) in 1997, most of the production of this staple in Argentina was concentrated in humid and sub-humid temperate regions. Early spring sowings minimized the risk of water deficit around flowering and yield reduction due to pests. Use of genetically modified maize allowed optimization of sowing dates to synchronize critical periods for kernel set determination with the times of the year when water deficits are less likely, reducing large interannual variations in grain yield. This change in sowing date did not start until 2009, after the occurrence of two successive dry phases of the El Nino-Southern Oscillation phenomenon. The area of land cropped to maize in Argentina has expanded dramatically since then, particularly beyond the humid areas. Currently, maize is sown in an almost 50%/50% distribution between early and late sowings, including double cropping. Changes in agronomic practices such as sowing date and production area can lead to changes in the timing and intensity of water deficits along the maize growth cycle. This review provides an overview of new patterns of water deficit across humid, sub-humid, and semi-arid mid-latitude environments of Argentina, and their effects on grain yield and yield components.
英文关键词	Drought El Nino-Southern Oscillation grain yield kernel number kernel weight maize reproductive period sowing date vegetative period Zea mays L
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000684152600006
WOS关键词	GRAIN-YIELD COMPONENTS ; LATE-SOWN MAIZE ; LIGHT INTERCEPTION ; EAR GROWTH ; NITROGEN ; CORN
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/2XILL650/368076
作者单位	[Otegui, Maria E.] Univ Buenos Aires, CONICET INTA FAUBA, Fac Agron, Estn Expt Pergamino, Buenos Aires, DF, Argentina; [Riglos, Maximiliano] CONICET INTA, Estn Expt San Luis, San Luis, Argentina; [Mercau, Jorge L.] INTA, Agencia Extens San Luis, San Luis, Argentina
推荐引用方式 GB/T 7714	Otegui, Maria E.,Riglos, Maximiliano,Mercau, Jorge L.. Genetically modified maize hybrids and delayed sowing reduced drought effects across a rainfall gradient in temperate Argentina[J],2021,72(14):5180-5188.
APA	Otegui, Maria E.,Riglos, Maximiliano,&Mercau, Jorge L..(2021).Genetically modified maize hybrids and delayed sowing reduced drought effects across a rainfall gradient in temperate Argentina.JOURNAL OF EXPERIMENTAL BOTANY,72(14),5180-5188.
MLA	Otegui, Maria E.,et al."Genetically modified maize hybrids and delayed sowing reduced drought effects across a rainfall gradient in temperate Argentina".JOURNAL OF EXPERIMENTAL BOTANY 72.14(2021):5180-5188.