干旱区生态环境知识资源中心(Arid): Analysis on Heat Characteristics for Summer Maize Cropping in a Semi-Arid Region

Arid

DOI	10.3390/agronomy12061435
	Analysis on Heat Characteristics for Summer Maize Cropping in a Semi-Arid Region
	Wang, Zhiwei; Sun, Weiwei; Liu, Xiaoli; Li, Yangyang; Collins, Brian; Ullah, Najeeb; Song, Youhong
通讯作者	Song, YH
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2022
卷号	12 期号:6
英文摘要	Heat stress during flowering is a critical limitation for summer maize production. However, the incidence of heat varies with years and locations, and it poses a great risk to successful maize reproduction and kernel setting. Therefore, it is essential to provide a sound quantification of heat occurrence in relation to maize growth and development. Here, we analyzed the characteristics of heat occurrence based on climate data for over 60 years on Huaibei Plain, China. The effective accumulated temperature showed a slight interannual variation. The average maximum temperature ((T) over bar (max)) during flowering was 32 degrees C-33 degrees C, which was approximately 2 degrees C higher than that over the whole growing season. The probability (P) for the daily T-max > 33 degrees C during flowering was closer to 50% and this maximum temperature ranged between 33 degrees C and 37 degrees C. The five levels from normal to extreme heat for T-max were defined. Across the six studied sites, the mild level heat stress accounted for most of incidents (P, 25-50%), followed by moderate (P, 13-25%) and severe (P, 0.5-13%), and the minimum for extreme heat stress (P, 0.5%). Four phases bracketing flowering during maize development were given, i.e., 1 week prior to anthesis, 1 week during anthesis, 1 week for anthesis-silking, and 1week post silking. There was a greater probability for heat stress incidents from anthesis to silking compared to the other developmental stages. Additionally, maize grain yield slightly increased with the increase in T-max to 33 degrees C, but it declined as T-max surpassed 33 degrees C. In conclusion, the pattern and characteristics of heat stress were quantified bracketing maize flowering. These findings assist to advise summer maize cropping strategies on the semi-arid and semi-humid Huaibei Plain, China or similar climate and cropping regions.
英文关键词	Zea mays L. bracketing flowering heat stress incidents cropping risk
类型	Article
语种	英语
开放获取类型	gold, Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000816375100001
WOS关键词	HIGH-TEMPERATURE STRESS ; CLIMATE-CHANGE ; PLANT-GROWTH ; EXTREME HEAT ; SOWING DATE ; KERNEL SET ; YIELD ; CHINA ; PHENOLOGY ; POLLEN
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391755
推荐引用方式 GB/T 7714	Wang, Zhiwei,Sun, Weiwei,Liu, Xiaoli,et al. Analysis on Heat Characteristics for Summer Maize Cropping in a Semi-Arid Region[J],2022,12(6).
APA	Wang, Zhiwei.,Sun, Weiwei.,Liu, Xiaoli.,Li, Yangyang.,Collins, Brian.,...&Song, Youhong.(2022).Analysis on Heat Characteristics for Summer Maize Cropping in a Semi-Arid Region.AGRONOMY-BASEL,12(6).
MLA	Wang, Zhiwei,et al."Analysis on Heat Characteristics for Summer Maize Cropping in a Semi-Arid Region".AGRONOMY-BASEL 12.6(2022).