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	Morphological and physiological traits of triticale as affected by drought stress
	Yang, Dan; Zhang, Shuyun; Tian, Xinhui; Du, Wenhua
通讯作者	Du, WH
来源期刊	CHILEAN JOURNAL OF AGRICULTURAL RESEARCH
ISSN	0718-5839
出版年	2023
卷号	83 期号:2 页码:203-216
英文摘要	Triticale (xTriticosecale Wittm.) is a major forage crop of arid and semiarid areas in China with yields much constrained by drought stress. Genetic improvement could benefit from a better understanding of drought effects on plant morphology and physiology. In this study, the morphophysiological traits of four triticale genotypes (line C31, varieties 'Gannong No.1', 'Gannong No.2', and 'Shida No.1') were determined on days 7, 14, 21, 35, 49, and 63 for treatments of the normal irrigation and drought stress, respectively. Rainfall of the drought stress treatments was controlled during the study using an anti-rain shed. Our findings suggest that drought stress had significant effects on all morphophysiological traits except for the relative number of leaves (RL) and catalase activities (RCAT). Among four genotypes, the averaged relative plant height (RH) of 'Gannong No.2' (0.90) was the highest, the averaged relative number of tillers (RT) of 'Gannong No.1' (0.77) was the highest, the averaged relative aboveground biomass yields (RAB) (0.53), relative leaf water content (RRWC) (0.96), and peroxidase activity (RPOD) (0.92) of C31 were the highest, respectively, and the averaged RCAT (1.06) of 'Shida No.1' was the highest. The interaction between genotype and drought stress days was significant for all morphophysiological traits except for the RT and RL. A comprehensive evaluation revealed that C31 was the most drought-tolerant genotype under persistent drought stress. These findings may be useful for the breeding and identification of drought-tolerant germplasms in the arid and semi-arid regions.
英文关键词	Comprehensive evaluation drought tolerance morphophysiological traits relative values ?Triticosecale
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000931606400001
WOS关键词	WATER ; TOLERANCE ; YIELD ; PARAMETERS
WOS类目	Agriculture, Multidisciplinary ; 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/2XILL650/395747
推荐引用方式 GB/T 7714	Yang, Dan,Zhang, Shuyun,Tian, Xinhui,et al. Morphological and physiological traits of triticale as affected by drought stress[J],2023,83(2):203-216.
APA	Yang, Dan,Zhang, Shuyun,Tian, Xinhui,&Du, Wenhua.(2023).Morphological and physiological traits of triticale as affected by drought stress.CHILEAN JOURNAL OF AGRICULTURAL RESEARCH,83(2),203-216.
MLA	Yang, Dan,et al."Morphological and physiological traits of triticale as affected by drought stress".CHILEAN JOURNAL OF AGRICULTURAL RESEARCH 83.2(2023):203-216.