干旱区生态环境知识资源中心(Arid): Nitrogen nutrition effects on triticale photosynthesis and assimilate translocation under late-season water stress conditions

Arid

DOI	10.1080/01904167.2021.1943677
	Nitrogen nutrition effects on triticale photosynthesis and assimilate translocation under late-season water stress conditions
	Barati, Vahid; Bijanzadeh, Ehsan; Emam, Yahya; Pessarakli, Mohammad
通讯作者	Pessarakli, M (corresponding author), Univ Arizona, Coll Agr & Life Sci, Sch Plant Sci, Tucson, AZ 85721 USA.
来源期刊	JOURNAL OF PLANT NUTRITION
ISSN	0190-4167
EISSN	1532-4087
出版年	2021-06
英文摘要	In this study, photosynthesis and assimilate translocation and their contribution to improving grain yield and harvest index (HI) of triticale under different N sources and irrigation regimes in an arid climate were evaluated. There were two levels of water regimes: normal irrigation (IRN) and deficit irrigation (cutting irrigation after anthesis stage - IRD). Four N sources: Azospirillum brasilense (Bio), Azospirillum brasilense + 75 kg N ha(-1) as urea (Bio + N-75), 150 kg N ha(-1) as urea (N-150) and control unfertilized (N-0) plots were used. Results showed the highest net photosynthesis rate (P-n) was observed in Bio + N-75 (24 and 20 mu mol CO2 m(-2) s(-1) at the milking and soft dough stages, respectively) under IRN. The IRD decreased P-n in all N sources, however, the highest reduction was observed in N-150 and the lowest in Bio and Bio + N-75 treatments. Similar trends were observed in other photosynthetic traits and assimilate remobilization, except for the instantaneous water use efficiency (IWUE), which increased by IRD when bio-fertilizer was applied. The highest grain yield was found by N-150 under IRN, which was not significantly different from Bio + N-75 treatment. In contrast, application of Bio + N-75 resulted in the highest grain yield compared to the other N sources under IRD. Overall, since the lowest reduction in photosynthetic traits, assimilate remobilization, and grain yield of triticale under IRD conditions occurred when bio-fertilizer was applied, this N fertilizer regime could be recommended for the arid areas where water shortage occurs frequently.
英文关键词	deficit irrigation instantaneous water use efficiency net photosynthesis rate
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000667563800001
WOS关键词	SOUTHEASTERN COASTAL-PLAIN ; WINTER-WHEAT ; USE EFFICIENCY ; GRAIN-YIELD ; DROUGHT-STRESS ; GAS-EXCHANGE ; DRY-MATTER ; DIFFERENT IRRIGATION ; COTTON PLANTS ; BREAD WHEAT
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352340
作者单位	[Barati, Vahid; Bijanzadeh, Ehsan] Shiraz Univ, Coll Agr & Nat Resources Darab, Agroecol Dept, Shiraz, Iran; [Emam, Yahya] Shiraz Univ, Sch Agr, Dept Plant Prod & Genet, Shiraz, Iran; [Pessarakli, Mohammad] Univ Arizona, Coll Agr & Life Sci, Sch Plant Sci, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Barati, Vahid,Bijanzadeh, Ehsan,Emam, Yahya,et al. Nitrogen nutrition effects on triticale photosynthesis and assimilate translocation under late-season water stress conditions[J]. University of Arizona,2021.
APA	Barati, Vahid,Bijanzadeh, Ehsan,Emam, Yahya,&Pessarakli, Mohammad.(2021).Nitrogen nutrition effects on triticale photosynthesis and assimilate translocation under late-season water stress conditions.JOURNAL OF PLANT NUTRITION.
MLA	Barati, Vahid,et al."Nitrogen nutrition effects on triticale photosynthesis and assimilate translocation under late-season water stress conditions".JOURNAL OF PLANT NUTRITION (2021).