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

Carlos M. Correia, João F. Coutinho, Lars Olof Björn, José M. G. Torres-Pereira

Research output: Contribution to journalArticlepeer-review

29 Citations (SciVal)
312 Downloads (Pure)

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.
This is the final, accepted and revised manuscript of this article. Use alternative location to go to the published article. Requires subscription.
Original languageEnglish
Pages (from-to)117-125
JournalEuropean Journal of Agronomy
Volume12
Issue number2
DOIs
Publication statusPublished - 2000

Subject classification (UKÄ)

  • Biological Sciences

Fingerprint

Dive into the research topics of 'Ultraviolet-B radiation and nitrogen effects on growth and yield of maize under Mediterranean field conditions'. Together they form a unique fingerprint.

Cite this