Ultraviolet-B radiation and nitrogen affect nutrient concentrations and the amount of nutrients acquired by above-ground organs of maize
Correia, Carlos M. ; Coutinho, João F ; Bacelar, Eunice A. ; Goncalves, Berta M. ; Björn, Lars Olof LU
and Pereira, José Moutinho
(2012)
In The Scientific World Journal
2012.
- Abstract
- UV-B radiation effects on nutrient concentrations in above-ground organs of maize were investigated at silking and maturity at different levels of applied nitrogen under field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. At silking, UV-B increased N, K, Ca, and Zn concentrations, whereas at maturity Ca,Mg, Zn, and Cu increased and N, P and Mn decreased in some plant organs. Generally, at maturity, N, Ca, Cu, and Mn were lower, while P, K, and Zn concentrations in stems and nitrogen-use efficiency (NUE) were higher in N-starved plants. UV-B and N effects on shoot dry biomass were more pronounced than on nutrient concentrations. Nutrient uptake decreased under high UV-B and increased with increasing... (More)
- UV-B radiation effects on nutrient concentrations in above-ground organs of maize were investigated at silking and maturity at different levels of applied nitrogen under field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. At silking, UV-B increased N, K, Ca, and Zn concentrations, whereas at maturity Ca,Mg, Zn, and Cu increased and N, P and Mn decreased in some plant organs. Generally, at maturity, N, Ca, Cu, and Mn were lower, while P, K, and Zn concentrations in stems and nitrogen-use efficiency (NUE) were higher in N-starved plants. UV-B and N effects on shoot dry biomass were more pronounced than on nutrient concentrations. Nutrient uptake decreased under high UV-B and increased with increasing N application, mainly at maturity harvest. Significant interactions UV-B x N were observed for NUE and for concentration and mass of some elements. For instance, under enhanced UV-B, N, Cu, Zn, and Mn concentrations decreased in leaves, except on Nstressed plants, whereas they were less affected by N nutrition. In order to minimize nutritional, economical, and environmental negative consequences, fertiliser recommendations based on element concentration or yield goals may need to be adjusted. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2860460
- author
- Correia, Carlos M.
; Coutinho, João F
; Bacelar, Eunice A.
; Goncalves, Berta M.
; Björn, Lars Olof
LU
and Pereira, José Moutinho
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ultraviolet-B radiation, nutrition, maoze
- in
- The Scientific World Journal
- volume
- 2012
- article number
- 608954
- publisher
- Hindawi Limited
- external identifiers
-
- wos:000305737900001
- scopus:84862331177
- pmid:22629161
- ISSN
- 2356-6140
- DOI
- 10.1100/2012/608954
- project
- Photobiology
- language
- English
- LU publication?
- yes
- id
- 5c6b5438-6ec5-442a-aa74-a2585971ac6f (old id 2860460)
- date added to LUP
- 2016-04-01 14:21:13
- date last changed
- 2023-01-04 04:09:50
@article{5c6b5438-6ec5-442a-aa74-a2585971ac6f,
abstract = {{UV-B radiation effects on nutrient concentrations in above-ground organs of maize were investigated at silking and maturity at different levels of applied nitrogen under field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. At silking, UV-B increased N, K, Ca, and Zn concentrations, whereas at maturity Ca,Mg, Zn, and Cu increased and N, P and Mn decreased in some plant organs. Generally, at maturity, N, Ca, Cu, and Mn were lower, while P, K, and Zn concentrations in stems and nitrogen-use efficiency (NUE) were higher in N-starved plants. UV-B and N effects on shoot dry biomass were more pronounced than on nutrient concentrations. Nutrient uptake decreased under high UV-B and increased with increasing N application, mainly at maturity harvest. Significant interactions UV-B x N were observed for NUE and for concentration and mass of some elements. For instance, under enhanced UV-B, N, Cu, Zn, and Mn concentrations decreased in leaves, except on Nstressed plants, whereas they were less affected by N nutrition. In order to minimize nutritional, economical, and environmental negative consequences, fertiliser recommendations based on element concentration or yield goals may need to be adjusted.}},
author = {{Correia, Carlos M. and Coutinho, João F and Bacelar, Eunice A. and Goncalves, Berta M. and Björn, Lars Olof and Pereira, José Moutinho}},
issn = {{2356-6140}},
keywords = {{ultraviolet-B radiation; nutrition; maoze}},
language = {{eng}},
publisher = {{Hindawi Limited}},
series = {{The Scientific World Journal}},
title = {{Ultraviolet-B radiation and nitrogen affect nutrient concentrations and the amount of nutrients acquired by above-ground organs of maize}},
url = {{https://lup.lub.lu.se/search/files/3930313/2860488.pdf}},
doi = {{10.1100/2012/608954}},
volume = {{2012}},
year = {{2012}},
}