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Ultraviolet-B radiation and nitrogen effects on growth and yield of maize under Mediterranean field conditions

Correia, Carlos M.; Coutinho, João F.; Björn, Lars Olof LU and Torres-Pereira, José M. G. (2000) In European Journal of Agronomy 12(2). p.117-125
Abstract
The effects of an increase in UV-B radiation on growth and yield of maize (Zea mays L.) were investigated at four levels of applied nitrogen (0, 100, 200 and 300 kg ha−1 of N) under Mediterranean field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. Enhanced UV-B and N deficiency decreased yield and total biomass production by 22–49%. High UV-B dose reduced yield, total biomass and growth of N-fertilized maize plants but did not affect N-stressed plants to the same extent. The response of grain yield to N was smaller with enhanced UV-B radiation. The underlying mechanisms for these results are discussed.

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The effects of an increase in UV-B radiation on growth and yield of maize (Zea mays L.) were investigated at four levels of applied nitrogen (0, 100, 200 and 300 kg ha−1 of N) under Mediterranean field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. Enhanced UV-B and N deficiency decreased yield and total biomass production by 22–49%. High UV-B dose reduced yield, total biomass and growth of N-fertilized maize plants but did not affect N-stressed plants to the same extent. The response of grain yield to N was smaller with enhanced UV-B radiation. The underlying mechanisms for these results are discussed.

This is the final, accepted and revised manuscript of this article. Use alternative location to go to the published article. Requires subscription. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Agronomy
volume
12
issue
2
pages
117 - 125
publisher
Elsevier
external identifiers
  • scopus:0034104488
ISSN
1161-0301
DOI
10.1016/S1161-0301(99)00050-7
language
English
LU publication?
yes
id
63b63865-537e-49bb-99d2-597ed6c6fbb1 (old id 134399)
date added to LUP
2007-07-30 14:14:27
date last changed
2017-06-18 03:38:00
@article{63b63865-537e-49bb-99d2-597ed6c6fbb1,
  abstract     = {The effects of an increase in UV-B radiation on growth and yield of maize (Zea mays L.) were investigated at four levels of applied nitrogen (0, 100, 200 and 300 kg ha−1 of N) under Mediterranean field conditions. The experiment simulated a 20% stratospheric ozone depletion over Portugal. Enhanced UV-B and N deficiency decreased yield and total biomass production by 22–49%. High UV-B dose reduced yield, total biomass and growth of N-fertilized maize plants but did not affect N-stressed plants to the same extent. The response of grain yield to N was smaller with enhanced UV-B radiation. The underlying mechanisms for these results are discussed. <br/><br>
This is the final, accepted and revised manuscript of this article. Use alternative location to go to the published article. Requires subscription.},
  author       = {Correia, Carlos M. and Coutinho, João F. and Björn, Lars Olof and Torres-Pereira, José M. G.},
  issn         = {1161-0301},
  language     = {eng},
  number       = {2},
  pages        = {117--125},
  publisher    = {Elsevier},
  series       = {European Journal of Agronomy},
  title        = {Ultraviolet-B radiation and nitrogen effects on growth and yield of maize under Mediterranean field conditions},
  url          = {http://dx.doi.org/10.1016/S1161-0301(99)00050-7},
  volume       = {12},
  year         = {2000},
}