干旱区生态环境知识资源中心(Arid): Influence of drought stress and foliar application of chitosan on nutrient accumulation and phenolic composition of Thymus daenensis Celak

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DOI	10.1002/csc2.20901
	Influence of drought stress and foliar application of chitosan on nutrient accumulation and phenolic composition of Thymus daenensis Celak
	Bistgani, Zohreh Emami; Hashemi, Masoud; Akbari, Parisa; Mumivand, Hassan
通讯作者	Hashemi, M
来源期刊	CROP SCIENCE
ISSN	0011-183X
EISSN	1435-0653
出版年	2023
卷号	63 期号:2 页码:921-935
英文摘要	Changes in climate have intensified the drought in semi-arid regions. A shift toward cultivation of low-input crops, including high-value medicinal and herbal plants seems a more sustainable alternative strategy. A 2-year field study was conducted to investigate the influence of drought stress and chitosan on nutrient density and phenolic compounds of thyme. Treatments consisted of a factorial combination of three irrigation and three chitosan rates. Irrigation treatments consisted of keeping experimental plots at field capacity (no stress), irrigation when plots reached 50% of field capacity (mild stress), and irrigation when plots reached 25% of field capacity (severe stress). Chitosan rates were 0, 200, and 400 mu L L-1, while K+, and to some degree Ca+2, accumulation increased by drought, N, P, and all micronutrients (Mn2+, Zn2+, Cu2+, and Fe2+) decreased steadily as drought stress intensified. Drought stress reduced N and P by 23%-19% and 35%-23%, respectively, over the 2 years. Application of chitosan enhanced the accumulation of macro and micronutrients. Drought stress resulted in alterations in phenolic composition. In mature plants, almost all phenolic compounds, except thymol, increased as drought stress intensified. Cinnamic acid and rosmarinic contents, as the two major identified compounds, increased by 31% and 45%, respectively, under severe drought. Similar to drought, chitosan elicitation was more effective in elevating phenolic compounds in mature plants. The response of thyme to chitosan was independent of soil moisture availability. The results indicated that application of 400 mu L-1 chitosan improved nutrient density and dry matter while significantly saved irrigation water.
英文关键词	chitosan drought stress nutrient density phenolic compounds Thymus daenensis Celak
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000937172000001
WOS关键词	ESSENTIAL OIL COMPOSITION ; PROLONGED WATER-STRESS ; PHYSIOLOGICAL-CHARACTERISTICS ; ANTIOXIDANT ACTIVITY ; BIOLOGICAL-PROPERTIES ; OCIMUM-BASILICUM ; GENE-EXPRESSION ; L. ; QUALITY ; YIELD
WOS类目	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/2XILL650/395833
推荐引用方式 GB/T 7714	Bistgani, Zohreh Emami,Hashemi, Masoud,Akbari, Parisa,et al. Influence of drought stress and foliar application of chitosan on nutrient accumulation and phenolic composition of Thymus daenensis Celak[J],2023,63(2):921-935.
APA	Bistgani, Zohreh Emami,Hashemi, Masoud,Akbari, Parisa,&Mumivand, Hassan.(2023).Influence of drought stress and foliar application of chitosan on nutrient accumulation and phenolic composition of Thymus daenensis Celak.CROP SCIENCE,63(2),921-935.
MLA	Bistgani, Zohreh Emami,et al."Influence of drought stress and foliar application of chitosan on nutrient accumulation and phenolic composition of Thymus daenensis Celak".CROP SCIENCE 63.2(2023):921-935.