气候变化领域集成服务门户(CCPortal): Climate and agronomy, not genetics, underpin recent maize yield gains in favorable environments

CCPortal

DOI	10.1073/pnas.2113629119
	Climate and agronomy, not genetics, underpin recent maize yield gains in favorable environments
	Rizzo, Gonzalo; Monzon, Juan Pablo; Tenorio, Fatima A.; Howard, Reka; Cassman, Kenneth G.; Grassini, Patricio
发表日期	2022
ISSN	0027-8424
EISSN	1091-6490
卷号	119 期号:4
英文摘要	Quantitative understanding of factors driving yield increases of major food crops is essential for effective prioritization of research and development. Yet previous estimates had limitations in distinguishing among contributing factors such as changing climate and new agronomic and genetic technologies. Here, we distinguished the separate contribution of these factors to yield advance using an extensive database collected from the largest irrigated maizeproduction domain in the world located in Nebraska (United States) during the 2005-to-2018 period. We found that 48% of the yield gain was associated with a decadal climate trend, 39% with agronomic improvements, and, by difference, only 13% with improvement in genetic yield potential. The fact that these findings were so different from most previous studies, which gave much-greater weight to genetic yield potential improvement, gives urgency to the need to reevaluate contributions to yield advances for all major food crops to help guide future investments in research and development to achieve sustainable global food security. If genetic progress in yield potential is also slowing in other environments and crops, future crop-yield gains will increasingly rely on improved agronomic practices.
英文关键词	climate; agronomy; genetics; yield gain; yield potential
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000758464700024
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280589
作者单位	University of Nebraska System; University of Nebraska Lincoln; University of Nebraska System; University of Nebraska Lincoln
推荐引用方式 GB/T 7714	Rizzo, Gonzalo,Monzon, Juan Pablo,Tenorio, Fatima A.,et al. Climate and agronomy, not genetics, underpin recent maize yield gains in favorable environments[J],2022,119(4).
APA	Rizzo, Gonzalo,Monzon, Juan Pablo,Tenorio, Fatima A.,Howard, Reka,Cassman, Kenneth G.,&Grassini, Patricio.(2022).Climate and agronomy, not genetics, underpin recent maize yield gains in favorable environments.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(4).
MLA	Rizzo, Gonzalo,et al."Climate and agronomy, not genetics, underpin recent maize yield gains in favorable environments".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.4(2022).