Response of Rice Nitrogen Physiology to High Nighttime Temperature during Vegetative Stage
Joint Authors
Wang, Dangying
Xu, Chunmei
Zhang, Xiaoguo
Zhao, Xia
Ji, Chenglin
Zhang, Xiufu
Chen, Song
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-28
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The effects of night temperature on plant morphology and nitrogen accumulation were examined in rice (Oryza sativa L.) during vegetative growth.
The results showed that the shoot biomass of the plants was greater at 27°C (high nighttime temperature, HNT) than at 22°C (CK).
However, the increase in both shoot and root biomasses was not significant under 10 mg N/L.
The shoot nitrogen concentrations were 16.1% and 16.7% higher in HNT than in CK under 160 and 40 mg N/L.
These results suggest that plant N uptake was enhanced under HNT; however, the positive effect might be limited by the N status of the plants.
In addition, leaf area, plant height, root maximum length, root and shoot nitrogen concentrations, soluble leaf protein content, and soluble leaf carbohydrate content were greater in HNT than in CK under 40 and 160 mg N/L, while fresh root volume, root number, and the content of free amino acid in leaf were not significantly different between HNT and CK regardless of nitrogen levels.
Moreover, leaf GS activity under HNT was increased at 160 mg N/L compared with that under CK, which might partly explain the positive effect of HNT on soluble protein and carbohydrate content.
American Psychological Association (APA)
Chen, Song& Zhang, Xiaoguo& Zhao, Xia& Wang, Dangying& Xu, Chunmei& Ji, Chenglin…[et al.]. 2013. Response of Rice Nitrogen Physiology to High Nighttime Temperature during Vegetative Stage. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1033163
Modern Language Association (MLA)
Chen, Song…[et al.]. Response of Rice Nitrogen Physiology to High Nighttime Temperature during Vegetative Stage. The Scientific World Journal No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-1033163
American Medical Association (AMA)
Chen, Song& Zhang, Xiaoguo& Zhao, Xia& Wang, Dangying& Xu, Chunmei& Ji, Chenglin…[et al.]. Response of Rice Nitrogen Physiology to High Nighttime Temperature during Vegetative Stage. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-1033163
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1033163