African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6934

Full Length Research Paper

Nitrogen levels effect on wheat nitrogen use efficiency and yield under field conditions

G. Kaur
  • G. Kaur
  • Department of Biochemistry, Punjab Agricultural University, Ludhiana.
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B. Asthir
  • B. Asthir
  • Department of Biochemistry, Punjab Agricultural University, Ludhiana.
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N.S. Bains
  • N.S. Bains
  • Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana.
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  •  Received: 28 February 2015
  •  Accepted: 20 May 2015
  •  Published: 04 June 2015

Abstract

A two year (2009-10 and 2010-11) field experiment was conducted on twelve wheat genotypes supplied with four levels of nitrogen (recommended dose of nitrogen; RDN, RDN-50%, RDN-25% and RDN+25%) to identify genotypes with maximum nitrogen use efficiency. Physiological parameters namely plant height, tiller number, spikelet number, grain yield, thousand grain weight and biomass increased with increases in nitrogen dose. During both years, yield and nitrogen use efficiency were higher in PBW 621 and PBW 636 while BW 9022 showed maximum thousand grain weight over other genotypes. Among all genotypes, HD 2967 was the tallest and tiller number and spikelet number were maximum in BW 9183.

 

Key words: Nitrogen, yield, nitrogen use efficiency, wheat, genotypes.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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